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authorLinus Torvalds <torvalds@linux-foundation.org>2011-07-24 09:55:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-24 09:55:45 -0700
commit21c7075fa5a756f1c95f6b463ff42cd320cc0301 (patch)
tree69524dd01fbebe662abe3b7296664592d3ce562b
parentff0c4ad2c3a75ccfe6adca916e50804eb45bb2d9 (diff)
parent73b7d40ff1bcd44b4245c2714b88cf872fe44685 (diff)
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (21 commits) [S390] use siginfo for sigtrap signals [S390] dasd: add enhanced DASD statistics interface [S390] kvm: make sigp emerg smp capable [S390] disable cpu measurement alerts on a dying cpu [S390] initial cr0 bits [S390] iucv cr0 enablement bit [S390] race safe external interrupt registration [S390] remove tape block docu [S390] ap: toleration support for ap device type 10 [S390] cleanup program check handler prototypes [S390] remove kvm mmu reload on s390 [S390] Use gmap translation for accessing guest memory [S390] use gmap address spaces for kvm guest images [S390] kvm guest address space mapping [S390] fix s390 assembler code alignments [S390] move sie code to entry.S [S390] kvm: handle tprot intercepts [S390] qdio: clear shared DSCI before scheduling the queue handler [S390] reference bit testing for unmapped pages [S390] irqs: Do not trace arch_local_{*,irq_*} functions ...
-rw-r--r--Documentation/s390/TAPE122
-rw-r--r--arch/s390/boot/compressed/head31.S4
-rw-r--r--arch/s390/boot/compressed/head64.S4
-rw-r--r--arch/s390/include/asm/irqflags.h16
-rw-r--r--arch/s390/include/asm/kvm_host.h12
-rw-r--r--arch/s390/include/asm/linkage.h5
-rw-r--r--arch/s390/include/asm/lowcore.h2
-rw-r--r--arch/s390/include/asm/mmu.h4
-rw-r--r--arch/s390/include/asm/pgalloc.h7
-rw-r--r--arch/s390/include/asm/pgtable.h42
-rw-r--r--arch/s390/include/asm/processor.h1
-rw-r--r--arch/s390/include/asm/thread_info.h2
-rw-r--r--arch/s390/include/asm/tlbflush.h2
-rw-r--r--arch/s390/kernel/asm-offsets.c2
-rw-r--r--arch/s390/kernel/base.S25
-rw-r--r--arch/s390/kernel/compat_wrapper.S836
-rw-r--r--arch/s390/kernel/entry.S32
-rw-r--r--arch/s390/kernel/entry.h7
-rw-r--r--arch/s390/kernel/entry64.S111
-rw-r--r--arch/s390/kernel/head.S7
-rw-r--r--arch/s390/kernel/head31.S13
-rw-r--r--arch/s390/kernel/head64.S13
-rw-r--r--arch/s390/kernel/irq.c83
-rw-r--r--arch/s390/kernel/mcount.S16
-rw-r--r--arch/s390/kernel/mcount64.S16
-rw-r--r--arch/s390/kernel/reipl.S5
-rw-r--r--arch/s390/kernel/reipl64.S5
-rw-r--r--arch/s390/kernel/relocate_kernel.S6
-rw-r--r--arch/s390/kernel/relocate_kernel64.S6
-rw-r--r--arch/s390/kernel/s390_ksyms.c4
-rw-r--r--arch/s390/kernel/sclp.S5
-rw-r--r--arch/s390/kernel/smp.c3
-rw-r--r--arch/s390/kernel/switch_cpu.S8
-rw-r--r--arch/s390/kernel/switch_cpu64.S8
-rw-r--r--arch/s390/kernel/swsusp_asm64.S8
-rw-r--r--arch/s390/kernel/traps.c36
-rw-r--r--arch/s390/kvm/Makefile2
-rw-r--r--arch/s390/kvm/gaccess.h243
-rw-r--r--arch/s390/kvm/intercept.c35
-rw-r--r--arch/s390/kvm/interrupt.c4
-rw-r--r--arch/s390/kvm/kvm-s390.c48
-rw-r--r--arch/s390/kvm/kvm-s390.h28
-rw-r--r--arch/s390/kvm/priv.c49
-rw-r--r--arch/s390/kvm/sie64a.S98
-rw-r--r--arch/s390/kvm/sigp.c6
-rw-r--r--arch/s390/lib/qrnnd.S5
-rw-r--r--arch/s390/mm/fault.c18
-rw-r--r--arch/s390/mm/hugetlbpage.c2
-rw-r--r--arch/s390/mm/pgtable.c421
-rw-r--r--arch/s390/mm/vmem.c8
-rw-r--r--drivers/s390/block/dasd.c576
-rw-r--r--drivers/s390/block/dasd_int.h57
-rw-r--r--drivers/s390/block/dasd_ioctl.c38
-rw-r--r--drivers/s390/block/dasd_proc.c106
-rw-r--r--drivers/s390/char/Kconfig3
-rw-r--r--drivers/s390/cio/qdio_thinint.c15
-rw-r--r--drivers/s390/crypto/ap_bus.c96
-rw-r--r--drivers/s390/crypto/ap_bus.h22
-rw-r--r--mm/rmap.c6
-rw-r--r--net/iucv/iucv.c7
60 files changed, 2091 insertions, 1280 deletions
diff --git a/Documentation/s390/TAPE b/Documentation/s390/TAPE
deleted file mode 100644
index c639aa5603ff..000000000000
--- a/Documentation/s390/TAPE
+++ /dev/null
@@ -1,122 +0,0 @@
-Channel attached Tape device driver
-
------------------------------WARNING-----------------------------------------
-This driver is considered to be EXPERIMENTAL. Do NOT use it in
-production environments. Feel free to test it and report problems back to us.
------------------------------------------------------------------------------
-
-The LINUX for zSeries tape device driver manages channel attached tape drives
-which are compatible to IBM 3480 or IBM 3490 magnetic tape subsystems. This
-includes various models of these devices (for example the 3490E).
-
-
-Tape driver features
-
-The device driver supports a maximum of 128 tape devices.
-No official LINUX device major number is assigned to the zSeries tape device
-driver. It allocates major numbers dynamically and reports them on system
-startup.
-Typically it will get major number 254 for both the character device front-end
-and the block device front-end.
-
-The tape device driver needs no kernel parameters. All supported devices
-present are detected on driver initialization at system startup or module load.
-The devices detected are ordered by their subchannel numbers. The device with
-the lowest subchannel number becomes device 0, the next one will be device 1
-and so on.
-
-
-Tape character device front-end
-
-The usual way to read or write to the tape device is through the character
-device front-end. The zSeries tape device driver provides two character devices
-for each physical device -- the first of these will rewind automatically when
-it is closed, the second will not rewind automatically.
-
-The character device nodes are named /dev/rtibm0 (rewinding) and /dev/ntibm0
-(non-rewinding) for the first device, /dev/rtibm1 and /dev/ntibm1 for the
-second, and so on.
-
-The character device front-end can be used as any other LINUX tape device. You
-can write to it and read from it using LINUX facilities such as GNU tar. The
-tool mt can be used to perform control operations, such as rewinding the tape
-or skipping a file.
-
-Most LINUX tape software should work with either tape character device.
-
-
-Tape block device front-end
-
-The tape device may also be accessed as a block device in read-only mode.
-This could be used for software installation in the same way as it is used with
-other operation systems on the zSeries platform (and most LINUX
-distributions are shipped on compact disk using ISO9660 filesystems).
-
-One block device node is provided for each physical device. These are named
-/dev/btibm0 for the first device, /dev/btibm1 for the second and so on.
-You should only use the ISO9660 filesystem on LINUX for zSeries tapes because
-the physical tape devices cannot perform fast seeks and the ISO9660 system is
-optimized for this situation.
-
-
-Tape block device example
-
-In this example a tape with an ISO9660 filesystem is created using the first
-tape device. ISO9660 filesystem support must be built into your system kernel
-for this.
-The mt command is used to issue tape commands and the mkisofs command to
-create an ISO9660 filesystem:
-
-- create a LINUX directory (somedir) with the contents of the filesystem
- mkdir somedir
- cp contents somedir
-
-- insert a tape
-
-- ensure the tape is at the beginning
- mt -f /dev/ntibm0 rewind
-
-- set the blocksize of the character driver. The blocksize 2048 bytes
- is commonly used on ISO9660 CD-Roms
- mt -f /dev/ntibm0 setblk 2048
-
-- write the filesystem to the character device driver
- mkisofs -o /dev/ntibm0 somedir
-
-- rewind the tape again
- mt -f /dev/ntibm0 rewind
-
-- Now you can mount your new filesystem as a block device:
- mount -t iso9660 -o ro,block=2048 /dev/btibm0 /mnt
-
-TODO List
-
- - Driver has to be stabilized still
-
-BUGS
-
-This driver is considered BETA, which means some weaknesses may still
-be in it.
-If an error occurs which cannot be handled by the code you will get a
-sense-data dump.In that case please do the following:
-
-1. set the tape driver debug level to maximum:
- echo 6 >/proc/s390dbf/tape/level
-
-2. re-perform the actions which produced the bug. (Hopefully the bug will
- reappear.)
-
-3. get a snapshot from the debug-feature:
- cat /proc/s390dbf/tape/hex_ascii >somefile
-
-4. Now put the snapshot together with a detailed description of the situation
- that led to the bug:
- - Which tool did you use?
- - Which hardware do you have?
- - Was your tape unit online?
- - Is it a shared tape unit?
-
-5. Send an email with your bug report to:
- mailto:Linux390@de.ibm.com
-
-
diff --git a/arch/s390/boot/compressed/head31.S b/arch/s390/boot/compressed/head31.S
index 2a5523a32bcc..e8c9e18b8039 100644
--- a/arch/s390/boot/compressed/head31.S
+++ b/arch/s390/boot/compressed/head31.S
@@ -7,14 +7,14 @@
*/
#include <linux/init.h>
+#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#include <asm/thread_info.h>
#include <asm/page.h>
#include "sizes.h"
__HEAD
- .globl startup_continue
-startup_continue:
+ENTRY(startup_continue)
basr %r13,0 # get base
.LPG1:
# setup stack
diff --git a/arch/s390/boot/compressed/head64.S b/arch/s390/boot/compressed/head64.S
index 2982cb140550..f86a4eef28a9 100644
--- a/arch/s390/boot/compressed/head64.S
+++ b/arch/s390/boot/compressed/head64.S
@@ -7,14 +7,14 @@
*/
#include <linux/init.h>
+#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#include <asm/thread_info.h>
#include <asm/page.h>
#include "sizes.h"
__HEAD
- .globl startup_continue
-startup_continue:
+ENTRY(startup_continue)
basr %r13,0 # get base
.LPG1:
# setup stack
diff --git a/arch/s390/include/asm/irqflags.h b/arch/s390/include/asm/irqflags.h
index 865d6d891ace..38fdf451febb 100644
--- a/arch/s390/include/asm/irqflags.h
+++ b/arch/s390/include/asm/irqflags.h
@@ -29,42 +29,42 @@
})
/* set system mask. */
-static inline void __arch_local_irq_ssm(unsigned long flags)
+static inline notrace void __arch_local_irq_ssm(unsigned long flags)
{
asm volatile("ssm %0" : : "Q" (flags) : "memory");
}
-static inline unsigned long arch_local_save_flags(void)
+static inline notrace unsigned long arch_local_save_flags(void)
{
return __arch_local_irq_stosm(0x00);
}
-static inline unsigned long arch_local_irq_save(void)
+static inline notrace unsigned long arch_local_irq_save(void)
{
return __arch_local_irq_stnsm(0xfc);
}
-static inline void arch_local_irq_disable(void)
+static inline notrace void arch_local_irq_disable(void)
{
arch_local_irq_save();
}
-static inline void arch_local_irq_enable(void)
+static inline notrace void arch_local_irq_enable(void)
{
__arch_local_irq_stosm(0x03);
}
-static inline void arch_local_irq_restore(unsigned long flags)
+static inline notrace void arch_local_irq_restore(unsigned long flags)
{
__arch_local_irq_ssm(flags);
}
-static inline bool arch_irqs_disabled_flags(unsigned long flags)
+static inline notrace bool arch_irqs_disabled_flags(unsigned long flags)
{
return !(flags & (3UL << (BITS_PER_LONG - 8)));
}
-static inline bool arch_irqs_disabled(void)
+static inline notrace bool arch_irqs_disabled(void)
{
return arch_irqs_disabled_flags(arch_local_save_flags());
}
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index cef7dbf69dfc..00ff00dfb24c 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -93,9 +93,7 @@ struct kvm_s390_sie_block {
__u32 scaol; /* 0x0064 */
__u8 reserved68[4]; /* 0x0068 */
__u32 todpr; /* 0x006c */
- __u8 reserved70[16]; /* 0x0070 */
- __u64 gmsor; /* 0x0080 */
- __u64 gmslm; /* 0x0088 */
+ __u8 reserved70[32]; /* 0x0070 */
psw_t gpsw; /* 0x0090 */
__u64 gg14; /* 0x00a0 */
__u64 gg15; /* 0x00a8 */
@@ -138,6 +136,7 @@ struct kvm_vcpu_stat {
u32 instruction_chsc;
u32 instruction_stsi;
u32 instruction_stfl;
+ u32 instruction_tprot;
u32 instruction_sigp_sense;
u32 instruction_sigp_emergency;
u32 instruction_sigp_stop;
@@ -175,6 +174,10 @@ struct kvm_s390_prefix_info {
__u32 address;
};
+struct kvm_s390_emerg_info {
+ __u16 code;
+};
+
struct kvm_s390_interrupt_info {
struct list_head list;
u64 type;
@@ -182,6 +185,7 @@ struct kvm_s390_interrupt_info {
struct kvm_s390_io_info io;
struct kvm_s390_ext_info ext;
struct kvm_s390_pgm_info pgm;
+ struct kvm_s390_emerg_info emerg;
struct kvm_s390_prefix_info prefix;
};
};
@@ -226,6 +230,7 @@ struct kvm_vcpu_arch {
struct cpuid cpu_id;
u64 stidp_data;
};
+ struct gmap *gmap;
};
struct kvm_vm_stat {
@@ -236,6 +241,7 @@ struct kvm_arch{
struct sca_block *sca;
debug_info_t *dbf;
struct kvm_s390_float_interrupt float_int;
+ struct gmap *gmap;
};
extern int sie64a(struct kvm_s390_sie_block *, unsigned long *);
diff --git a/arch/s390/include/asm/linkage.h b/arch/s390/include/asm/linkage.h
index 291c2d01c44f..fc8a8284778e 100644
--- a/arch/s390/include/asm/linkage.h
+++ b/arch/s390/include/asm/linkage.h
@@ -1,6 +1,9 @@
#ifndef __ASM_LINKAGE_H
#define __ASM_LINKAGE_H
-/* Nothing to see here... */
+#include <linux/stringify.h>
+
+#define __ALIGN .align 4, 0x07
+#define __ALIGN_STR __stringify(__ALIGN)
#endif
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index 228cf0b295db..f26280d9e88d 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -268,7 +268,7 @@ struct _lowcore {
__u64 vdso_per_cpu_data; /* 0x0358 */
__u64 machine_flags; /* 0x0360 */
__u64 ftrace_func; /* 0x0368 */
- __u64 sie_hook; /* 0x0370 */
+ __u64 gmap; /* 0x0370 */
__u64 cmf_hpp; /* 0x0378 */
/* Interrupt response block. */
diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h
index 82d0847896a0..4506791adcd5 100644
--- a/arch/s390/include/asm/mmu.h
+++ b/arch/s390/include/asm/mmu.h
@@ -6,6 +6,7 @@ typedef struct {
unsigned int flush_mm;
spinlock_t list_lock;
struct list_head pgtable_list;
+ struct list_head gmap_list;
unsigned long asce_bits;
unsigned long asce_limit;
unsigned long vdso_base;
@@ -17,6 +18,7 @@ typedef struct {
#define INIT_MM_CONTEXT(name) \
.context.list_lock = __SPIN_LOCK_UNLOCKED(name.context.list_lock), \
- .context.pgtable_list = LIST_HEAD_INIT(name.context.pgtable_list),
+ .context.pgtable_list = LIST_HEAD_INIT(name.context.pgtable_list), \
+ .context.gmap_list = LIST_HEAD_INIT(name.context.gmap_list),
#endif
diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h
index 38e71ebcd3c2..8eef9b5b3cf4 100644
--- a/arch/s390/include/asm/pgalloc.h
+++ b/arch/s390/include/asm/pgalloc.h
@@ -20,7 +20,7 @@
unsigned long *crst_table_alloc(struct mm_struct *);
void crst_table_free(struct mm_struct *, unsigned long *);
-unsigned long *page_table_alloc(struct mm_struct *);
+unsigned long *page_table_alloc(struct mm_struct *, unsigned long);
void page_table_free(struct mm_struct *, unsigned long *);
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
void page_table_free_rcu(struct mmu_gather *, unsigned long *);
@@ -115,6 +115,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
spin_lock_init(&mm->context.list_lock);
INIT_LIST_HEAD(&mm->context.pgtable_list);
+ INIT_LIST_HEAD(&mm->context.gmap_list);
return (pgd_t *) crst_table_alloc(mm);
}
#define pgd_free(mm, pgd) crst_table_free(mm, (unsigned long *) pgd)
@@ -133,8 +134,8 @@ static inline void pmd_populate(struct mm_struct *mm,
/*
* page table entry allocation/free routines.
*/
-#define pte_alloc_one_kernel(mm, vmaddr) ((pte_t *) page_table_alloc(mm))
-#define pte_alloc_one(mm, vmaddr) ((pte_t *) page_table_alloc(mm))
+#define pte_alloc_one_kernel(mm, vmaddr) ((pte_t *) page_table_alloc(mm, vmaddr))
+#define pte_alloc_one(mm, vmaddr) ((pte_t *) page_table_alloc(mm, vmaddr))
#define pte_free_kernel(mm, pte) page_table_free(mm, (unsigned long *) pte)
#define pte_free(mm, pte) page_table_free(mm, (unsigned long *) pte)
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 801fbe1d837d..519eb5f187ef 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -654,6 +654,48 @@ static inline void pgste_set_pte(pte_t *ptep, pgste_t pgste)
#endif
}
+/**
+ * struct gmap_struct - guest address space
+ * @mm: pointer to the parent mm_struct
+ * @table: pointer to the page directory
+ * @crst_list: list of all crst tables used in the guest address space
+ */
+struct gmap {
+ struct list_head list;
+ struct mm_struct *mm;
+ unsigned long *table;
+ struct list_head crst_list;
+};
+
+/**
+ * struct gmap_rmap - reverse mapping for segment table entries
+ * @next: pointer to the next gmap_rmap structure in the list
+ * @entry: pointer to a segment table entry
+ */
+struct gmap_rmap {
+ struct list_head list;
+ unsigned long *entry;
+};
+
+/**
+ * struct gmap_pgtable - gmap information attached to a page table
+ * @vmaddr: address of the 1MB segment in the process virtual memory
+ * @mapper: list of segment table entries maping a page table
+ */
+struct gmap_pgtable {
+ unsigned long vmaddr;
+ struct list_head mapper;
+};
+
+struct gmap *gmap_alloc(struct mm_struct *mm);
+void gmap_free(struct gmap *gmap);
+void gmap_enable(struct gmap *gmap);
+void gmap_disable(struct gmap *gmap);
+int gmap_map_segment(struct gmap *gmap, unsigned long from,
+ unsigned long to, unsigned long length);
+int gmap_unmap_segment(struct gmap *gmap, unsigned long to, unsigned long len);
+unsigned long gmap_fault(unsigned long address, struct gmap *);
+
/*
* Certain architectures need to do special things when PTEs
* within a page table are directly modified. Thus, the following
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 1300c3025334..55dfcc8bdc0d 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -80,6 +80,7 @@ struct thread_struct {
mm_segment_t mm_segment;
unsigned long prot_addr; /* address of protection-excep. */
unsigned int trap_no;
+ unsigned long gmap_addr; /* address of last gmap fault. */
struct per_regs per_user; /* User specified PER registers */
struct per_event per_event; /* Cause of the last PER trap */
/* pfault_wait is used to block the process on a pfault event */
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index ad1382f7932e..1a5dbb6f1495 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -94,6 +94,7 @@ static inline struct thread_info *current_thread_info(void)
#define TIF_SYSCALL_AUDIT 9 /* syscall auditing active */
#define TIF_SECCOMP 10 /* secure computing */
#define TIF_SYSCALL_TRACEPOINT 11 /* syscall tracepoint instrumentation */
+#define TIF_SIE 12 /* guest execution active */
#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling
TIF_NEED_RESCHED */
#define TIF_31BIT 17 /* 32bit process */
@@ -113,6 +114,7 @@ static inline struct thread_info *current_thread_info(void)
#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
#define _TIF_SECCOMP (1<<TIF_SECCOMP)
#define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
+#define _TIF_SIE (1<<TIF_SIE)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_31BIT (1<<TIF_31BIT)
#define _TIF_SINGLE_STEP (1<<TIF_FREEZE)
diff --git a/arch/s390/include/asm/tlbflush.h b/arch/s390/include/asm/tlbflush.h
index b7a4f2eb0057..304445382382 100644
--- a/arch/s390/include/asm/tlbflush.h
+++ b/arch/s390/include/asm/tlbflush.h
@@ -80,7 +80,7 @@ static inline void __tlb_flush_mm(struct mm_struct * mm)
* on all cpus instead of doing a local flush if the mm
* only ran on the local cpu.
*/
- if (MACHINE_HAS_IDTE)
+ if (MACHINE_HAS_IDTE && list_empty(&mm->context.gmap_list))
__tlb_flush_idte((unsigned long) mm->pgd |
mm->context.asce_bits);
else
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index edfbd17d7082..05d8f38734ec 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -151,7 +151,7 @@ int main(void)
DEFINE(__LC_FP_CREG_SAVE_AREA, offsetof(struct _lowcore, fpt_creg_save_area));
DEFINE(__LC_LAST_BREAK, offsetof(struct _lowcore, breaking_event_addr));
DEFINE(__LC_VDSO_PER_CPU, offsetof(struct _lowcore, vdso_per_cpu_data));
- DEFINE(__LC_SIE_HOOK, offsetof(struct _lowcore, sie_hook));
+ DEFINE(__LC_GMAP, offsetof(struct _lowcore, gmap));
DEFINE(__LC_CMF_HPP, offsetof(struct _lowcore, cmf_hpp));
#endif /* CONFIG_32BIT */
return 0;
diff --git a/arch/s390/kernel/base.S b/arch/s390/kernel/base.S
index 15e46ca94335..209938c1dfc8 100644
--- a/arch/s390/kernel/base.S
+++ b/arch/s390/kernel/base.S
@@ -6,13 +6,13 @@
* Michael Holzheu <holzheu@de.ibm.com>
*/
+#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#include <asm/ptrace.h>
#ifdef CONFIG_64BIT
- .globl s390_base_mcck_handler
-s390_base_mcck_handler:
+ENTRY(s390_base_mcck_handler)
basr %r13,0
0: lg %r15,__LC_PANIC_STACK # load panic stack
aghi %r15,-STACK_FRAME_OVERHEAD
@@ -26,13 +26,13 @@ s390_base_mcck_handler:
lpswe __LC_MCK_OLD_PSW
.section .bss
+ .align 8
.globl s390_base_mcck_handler_fn
s390_base_mcck_handler_fn:
.quad 0
.previous
- .globl s390_base_ext_handler
-s390_base_ext_handler:
+ENTRY(s390_base_ext_handler)
stmg %r0,%r15,__LC_SAVE_AREA
basr %r13,0
0: aghi %r15,-STACK_FRAME_OVERHEAD
@@ -46,13 +46,13 @@ s390_base_ext_handler:
lpswe __LC_EXT_OLD_PSW
.section .bss
+ .align 8
.globl s390_base_ext_handler_fn
s390_base_ext_handler_fn:
.quad 0
.previous
- .globl s390_base_pgm_handler
-s390_base_pgm_handler:
+ENTRY(s390_base_pgm_handler)
stmg %r0,%r15,__LC_SAVE_AREA
basr %r13,0
0: aghi %r15,-STACK_FRAME_OVERHEAD
@@ -70,6 +70,7 @@ disabled_wait_psw:
.quad 0x0002000180000000,0x0000000000000000 + s390_base_pgm_handler
.section .bss
+ .align 8
.globl s390_base_pgm_handler_fn
s390_base_pgm_handler_fn:
.quad 0
@@ -77,8 +78,7 @@ s390_base_pgm_handler_fn:
#else /* CONFIG_64BIT */
- .globl s390_base_mcck_handler
-s390_base_mcck_handler:
+ENTRY(s390_base_mcck_handler)
basr %r13,0
0: l %r15,__LC_PANIC_STACK # load panic stack
ahi %r15,-STACK_FRAME_OVERHEAD
@@ -93,13 +93,13 @@ s390_base_mcck_handler:
2: .long s390_base_mcck_handler_fn
.section .bss
+ .align 4
.globl s390_base_mcck_handler_fn
s390_base_mcck_handler_fn:
.long 0
.previous
- .globl s390_base_ext_handler
-s390_base_ext_handler:
+ENTRY(s390_base_ext_handler)
stm %r0,%r15,__LC_SAVE_AREA
basr %r13,0
0: ahi %r15,-STACK_FRAME_OVERHEAD
@@ -115,13 +115,13 @@ s390_base_ext_handler:
2: .long s390_base_ext_handler_fn
.section .bss
+ .align 4
.globl s390_base_ext_handler_fn
s390_base_ext_handler_fn:
.long 0
.previous
- .globl s390_base_pgm_handler
-s390_base_pgm_handler:
+ENTRY(s390_base_pgm_handler)
stm %r0,%r15,__LC_SAVE_AREA
basr %r13,0
0: ahi %r15,-STACK_FRAME_OVERHEAD
@@ -142,6 +142,7 @@ disabled_wait_psw:
.long 0x000a0000,0x00000000 + s390_base_pgm_handler
.section .bss
+ .align 4
.globl s390_base_pgm_handler_fn
s390_base_pgm_handler_fn:
.long 0
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 1f5eb789c3a7..08ab9aa6a0d5 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -7,86 +7,74 @@
* Thomas Spatzier (tspat@de.ibm.com)
*/
- .globl sys32_exit_wrapper
-sys32_exit_wrapper:
+#include <linux/linkage.h>
+
+ENTRY(sys32_exit_wrapper)
lgfr %r2,%r2 # int
jg sys_exit # branch to sys_exit
- .globl sys32_read_wrapper
-sys32_read_wrapper:
+ENTRY(sys32_read_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # char *
llgfr %r4,%r4 # size_t
jg sys32_read # branch to sys_read
- .globl sys32_write_wrapper
-sys32_write_wrapper:
+ENTRY(sys32_write_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # const char *
llgfr %r4,%r4 # size_t
jg sys32_write # branch to system call
- .globl sys32_open_wrapper
-sys32_open_wrapper:
+ENTRY(sys32_open_wrapper)
llgtr %r2,%r2 # const char *
lgfr %r3,%r3 # int
lgfr %r4,%r4 # int
jg sys_open # branch to system call
- .globl sys32_close_wrapper
-sys32_close_wrapper:
+ENTRY(sys32_close_wrapper)
llgfr %r2,%r2 # unsigned int
jg sys_close # branch to system call
- .globl sys32_creat_wrapper
-sys32_creat_wrapper:
+ENTRY(sys32_creat_wrapper)
llgtr %r2,%r2 # const char *
lgfr %r3,%r3 # int
jg sys_creat # branch to system call
- .globl sys32_link_wrapper
-sys32_link_wrapper:
+ENTRY(sys32_link_wrapper)
llgtr %r2,%r2 # const char *
llgtr %r3,%r3 # const char *
jg sys_link # branch to system call
- .globl sys32_unlink_wrapper
-sys32_unlink_wrapper:
+ENTRY(sys32_unlink_wrapper)
llgtr %r2,%r2 # const char *
jg sys_unlink # branch to system call
- .globl sys32_chdir_wrapper
-sys32_chdir_wrapper:
+ENTRY(sys32_chdir_wrapper)
llgtr %r2,%r2 # const char *
jg sys_chdir # branch to system call
- .globl sys32_time_wrapper
-sys32_time_wrapper:
+ENTRY(sys32_time_wrapper)
llgtr %r2,%r2 # int *
jg compat_sys_time # branch to system call
- .globl sys32_mknod_wrapper
-sys32_mknod_wrapper:
+ENTRY(sys32_mknod_wrapper)
llgtr %r2,%r2 # const char *
lgfr %r3,%r3 # int
llgfr %r4,%r4 # dev
jg sys_mknod # branch to system call
- .globl sys32_chmod_wrapper
-sys32_chmod_wrapper:
+ENTRY(sys32_chmod_wrapper)
llgtr %r2,%r2 # const char *
llgfr %r3,%r3 # mode_t
jg sys_chmod # branch to system call
- .globl sys32_lchown16_wrapper
-sys32_lchown16_wrapper:
+ENTRY(sys32_lchown16_wrapper)
llgtr %r2,%r2 # const char *
llgfr %r3,%r3 # __kernel_old_uid_emu31_t
llgfr %r4,%r4 # __kernel_old_uid_emu31_t
jg sys32_lchown16 # branch to system call
- .globl sys32_lseek_wrapper
-sys32_lseek_wrapper:
+ENTRY(sys32_lseek_wrapper)
llgfr %r2,%r2 # unsigned int
lgfr %r3,%r3 # off_t
llgfr %r4,%r4 # unsigned int
@@ -94,8 +82,7 @@ sys32_lseek_wrapper:
#sys32_getpid_wrapper # void
- .globl sys32_mount_wrapper
-sys32_mount_wrapper:
+ENTRY(sys32_mount_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # char *
llgtr %r4,%r4 # char *
@@ -103,102 +90,85 @@ sys32_mount_wrapper:
llgtr %r6,%r6 # void *
jg compat_sys_mount # branch to system call
- .globl sys32_oldumount_wrapper
-sys32_oldumount_wrapper:
+ENTRY(sys32_oldumount_wrapper)
llgtr %r2,%r2 # char *
jg sys_oldumount # branch to system call
- .globl sys32_setuid16_wrapper
-sys32_setuid16_wrapper:
+ENTRY(sys32_setuid16_wrapper)
llgfr %r2,%r2 # __kernel_old_uid_emu31_t
jg sys32_setuid16 # branch to system call
#sys32_getuid16_wrapper # void
- .globl sys32_ptrace_wrapper
-sys32_ptrace_wrapper:
+ENTRY(sys32_ptrace_wrapper)
lgfr %r2,%r2 # long
lgfr %r3,%r3 # long
llgtr %r4,%r4 # long
llgfr %r5,%r5 # long
jg compat_sys_ptrace # branch to system call
- .globl sys32_alarm_wrapper
-sys32_alarm_wrapper:
+ENTRY(sys32_alarm_wrapper)
llgfr %r2,%r2 # unsigned int
jg sys_alarm # branch to system call
- .globl compat_sys_utime_wrapper
-compat_sys_utime_wrapper:
+ENTRY(compat_sys_utime_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # struct compat_utimbuf *
jg compat_sys_utime # branch to system call
- .globl sys32_access_wrapper
-sys32_access_wrapper:
+ENTRY(sys32_access_wrapper)
llgtr %r2,%r2 # const char *
lgfr %r3,%r3 # int
jg sys_access # branch to system call
- .globl sys32_nice_wrapper
-sys32_nice_wrapper:
+ENTRY(sys32_nice_wrapper)
lgfr %r2,%r2 # int
jg sys_nice # branch to system call
#sys32_sync_wrapper # void
- .globl sys32_kill_wrapper
-sys32_kill_wrapper:
+ENTRY(sys32_kill_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
jg sys_kill # branch to system call
- .globl sys32_rename_wrapper
-sys32_rename_wrapper:
+ENTRY(sys32_rename_wrapper)
llgtr %r2,%r2 # const char *
llgtr %r3,%r3 # const char *
jg sys_rename # branch to system call
- .globl sys32_mkdir_wrapper
-sys32_mkdir_wrapper:
+ENTRY(sys32_mkdir_wrapper)
llgtr %r2,%r2 # const char *
lgfr %r3,%r3 # int
jg sys_mkdir # branch to system call
- .globl sys32_rmdir_wrapper
-sys32_rmdir_wrapper:
+ENTRY(sys32_rmdir_wrapper)
llgtr %r2,%r2 # const char *
jg sys_rmdir # branch to system call
- .globl sys32_dup_wrapper
-sys32_dup_wrapper:
+ENTRY(sys32_dup_wrapper)
llgfr %r2,%r2 # unsigned int
jg sys_dup # branch to system call
- .globl sys32_pipe_wrapper
-sys32_pipe_wrapper:
+ENTRY(sys32_pipe_wrapper)
llgtr %r2,%r2 # u32 *
jg sys_pipe # branch to system call
- .globl compat_sys_times_wrapper
-compat_sys_times_wrapper:
+ENTRY(compat_sys_times_wrapper)
llgtr %r2,%r2 # struct compat_tms *
jg compat_sys_times # branch to system call
- .globl sys32_brk_wrapper
-sys32_brk_wrapper:
+ENTRY(sys32_brk_wrapper)
llgtr %r2,%r2 # unsigned long
jg sys_brk # branch to system call
- .globl sys32_setgid16_wrapper
-sys32_setgid16_wrapper:
+ENTRY(sys32_setgid16_wrapper)
llgfr %r2,%r2 # __kernel_old_gid_emu31_t
jg sys32_setgid16 # branch to system call
#sys32_getgid16_wrapper # void
- .globl sys32_signal_wrapper
-sys32_signal_wrapper:
+ENTRY(sys32_signal_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # __sighandler_t
jg sys_signal
@@ -207,55 +177,46 @@ sys32_signal_wrapper:
#sys32_getegid16_wrapper # void
- .globl sys32_acct_wrapper
-sys32_acct_wrapper:
+ENTRY(sys32_acct_wrapper)
llgtr %r2,%r2 # char *
jg sys_acct # branch to system call
- .globl sys32_umount_wrapper
-sys32_umount_wrapper:
+ENTRY(sys32_umount_wrapper)
llgtr %r2,%r2 # char *
lgfr %r3,%r3 # int
jg sys_umount # branch to system call
- .globl compat_sys_ioctl_wrapper
-compat_sys_ioctl_wrapper:
+ENTRY(compat_sys_ioctl_wrapper)
llgfr %r2,%r2 # unsigned int
llgfr %r3,%r3 # unsigned int
llgfr %r4,%r4 # unsigned int
jg compat_sys_ioctl # branch to system call
- .globl compat_sys_fcntl_wrapper
-compat_sys_fcntl_wrapper:
+ENTRY(compat_sys_fcntl_wrapper)
llgfr %r2,%r2 # unsigned int
llgfr %r3,%r3 # unsigned int
llgfr %r4,%r4 # unsigned long
jg compat_sys_fcntl # branch to system call
- .globl sys32_setpgid_wrapper
-sys32_setpgid_wrapper:
+ENTRY(sys32_setpgid_wrapper)
lgfr %r2,%r2 # pid_t
lgfr %r3,%r3 # pid_t
jg sys_setpgid # branch to system call
- .globl sys32_umask_wrapper
-sys32_umask_wrapper:
+ENTRY(sys32_umask_wrapper)
lgfr %r2,%r2 # int
jg sys_umask # branch to system call
- .globl sys32_chroot_wrapper
-sys32_chroot_wrapper:
+ENTRY(sys32_chroot_wrapper)
llgtr %r2,%r2 # char *
jg sys_chroot # branch to system call
- .globl sys32_ustat_wrapper
-sys32_ustat_wrapper:
+ENTRY(sys32_ustat_wrapper)
llgfr %r2,%r2 # dev_t
llgtr %r3,%r3 # struct ustat *
jg compat_sys_ustat
- .globl sys32_dup2_wrapper
-sys32_dup2_wrapper:
+ENTRY(sys32_dup2_wrapper)
llgfr %r2,%r2 # unsigned int
llgfr %r3,%r3 # unsigned int
jg sys_dup2 # branch to system call
@@ -266,262 +227,220 @@ sys32_dup2_wrapper:
#sys32_setsid_wrapper # void
- .globl sys32_sigaction_wrapper
-sys32_sigaction_wrapper:
+ENTRY(sys32_sigaction_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # const struct old_sigaction *
llgtr %r4,%r4 # struct old_sigaction32 *
jg sys32_sigaction # branch to system call
- .globl sys32_setreuid16_wrapper
-sys32_setreuid16_wrapper:
+ENTRY(sys32_setreuid16_wrapper)
llgfr %r2,%r2 # __kernel_old_uid_emu31_t
llgfr %r3,%r3 # __kernel_old_uid_emu31_t
jg sys32_setreuid16 # branch to system call
- .globl sys32_setregid16_wrapper
-sys32_setregid16_wrapper:
+ENTRY(sys32_setregid16_wrapper)
llgfr %r2,%r2 # __kernel_old_gid_emu31_t
llgfr %r3,%r3 # __kernel_old_gid_emu31_t
jg sys32_setregid16 # branch to system call
- .globl sys_sigsuspend_wrapper
-sys_sigsuspend_wrapper:
+ENTRY(sys_sigsuspend_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
llgfr %r4,%r4 # old_sigset_t
jg sys_sigsuspend
- .globl compat_sys_sigpending_wrapper
-compat_sys_sigpending_wrapper:
+ENTRY(compat_sys_sigpending_wrapper)
llgtr %r2,%r2 # compat_old_sigset_t *
jg compat_sys_sigpending # branch to system call
- .globl sys32_sethostname_wrapper
-sys32_sethostname_wrapper:
+ENTRY(sys32_sethostname_wrapper)
llgtr %r2,%r2 # char *
lgfr %r3,%r3 # int
jg sys_sethostname # branch to system call
- .globl compat_sys_setrlimit_wrapper
-compat_sys_setrlimit_wrapper:
+ENTRY(compat_sys_setrlimit_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # struct rlimit_emu31 *
jg compat_sys_setrlimit # branch to system call
- .globl compat_sys_old_getrlimit_wrapper
-compat_sys_old_getrlimit_wrapper:
+ENTRY(compat_sys_old_getrlimit_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # struct rlimit_emu31 *
jg compat_sys_old_getrlimit # branch to system call
- .globl compat_sys_getrlimit_wrapper
-compat_sys_getrlimit_wrapper:
+ENTRY(compat_sys_getrlimit_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # struct rlimit_emu31 *
jg compat_sys_getrlimit # branch to system call
- .globl sys32_mmap2_wrapper
-sys32_mmap2_wrapper:
+ENTRY(sys32_mmap2_wrapper)
llgtr %r2,%r2 # struct mmap_arg_struct_emu31 *
jg sys32_mmap2 # branch to system call
- .globl compat_sys_getrusage_wrapper
-compat_sys_getrusage_wrapper:
+ENTRY(compat_sys_getrusage_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # struct rusage_emu31 *
jg compat_sys_getrusage # branch to system call
- .globl compat_sys_gettimeofday_wrapper
-compat_sys_gettimeofday_wrapper:
+ENTRY(compat_sys_gettimeofday_wrapper)
llgtr %r2,%r2 # struct timeval_emu31 *
llgtr %r3,%r3 # struct timezone *
jg compat_sys_gettimeofday # branch to system call
- .globl compat_sys_settimeofday_wrapper
-compat_sys_settimeofday_wrapper:
+ENTRY(compat_sys_settimeofday_wrapper)
llgtr %r2,%r2 # struct timeval_emu31 *
llgtr %r3,%r3 # struct timezone *
jg compat_sys_settimeofday # branch to system call
- .globl sys32_getgroups16_wrapper
-sys32_getgroups16_wrapper:
+ENTRY(sys32_getgroups16_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # __kernel_old_gid_emu31_t *
jg sys32_getgroups16 # branch to system call
- .globl sys32_setgroups16_wrapper
-sys32_setgroups16_wrapper:
+ENTRY(sys32_setgroups16_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # __kernel_old_gid_emu31_t *
jg sys32_setgroups16 # branch to system call
- .globl sys32_symlink_wrapper
-sys32_symlink_wrapper:
+ENTRY(sys32_symlink_wrapper)
llgtr %r2,%r2 # const char *
llgtr %r3,%r3 # const char *
jg sys_symlink # branch to system call
- .globl sys32_readlink_wrapper
-sys32_readlink_wrapper:
+ENTRY(sys32_readlink_wrapper)
llgtr %r2,%r2 # const char *
llgtr %r3,%r3 # char *
lgfr %r4,%r4 # int
jg sys_readlink # branch to system call
- .globl sys32_uselib_wrapper
-sys32_uselib_wrapper:
+ENTRY(sys32_uselib_wrapper)
llgtr %r2,%r2 # const char *
jg sys_uselib # branch to system call
- .globl sys32_swapon_wrapper
-sys32_swapon_wrapper:
+ENTRY(sys32_swapon_wrapper)
llgtr %r2,%r2 # const char *
lgfr %r3,%r3 # int
jg sys_swapon # branch to system call
- .globl sys32_reboot_wrapper
-sys32_reboot_wrapper:
+ENTRY(sys32_reboot_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
llgfr %r4,%r4 # unsigned int
llgtr %r5,%r5 # void *
jg sys_reboot # branch to system call
- .globl old32_readdir_wrapper
-old32_readdir_wrapper:
+ENTRY(old32_readdir_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # void *
llgfr %r4,%r4 # unsigned int
jg compat_sys_old_readdir # branch to system call
- .globl old32_mmap_wrapper
-old32_mmap_wrapper:
+ENTRY(old32_mmap_wrapper)
llgtr %r2,%r2 # struct mmap_arg_struct_emu31 *
jg old32_mmap # branch to system call
- .globl sys32_munmap_wrapper
-sys32_munmap_wrapper:
+ENTRY(sys32_munmap_wrapper)
llgfr %r2,%r2 # unsigned long
llgfr %r3,%r3 # size_t
jg sys_munmap # branch to system call
- .globl sys32_truncate_wrapper
-sys32_truncate_wrapper:
+ENTRY(sys32_truncate_wrapper)
llgtr %r2,%r2 # const char *
lgfr %r3,%r3 # long
jg sys_truncate # branch to system call
- .globl sys32_ftruncate_wrapper
-sys32_ftruncate_wrapper:
+ENTRY(sys32_ftruncate_wrapper)
llgfr %r2,%r2 # unsigned int
llgfr %r3,%r3 # unsigned long
jg sys_ftruncate # branch to system call
- .globl sys32_fchmod_wrapper
-sys32_fchmod_wrapper:
+ENTRY(sys32_fchmod_wrapper)
llgfr %r2,%r2 # unsigned int
llgfr %r3,%r3 # mode_t
jg sys_fchmod # branch to system call
- .globl sys32_fchown16_wrapper
-sys32_fchown16_wrapper:
+ENTRY(sys32_fchown16_wrapper)
llgfr %r2,%r2 # unsigned int
llgfr %r3,%r3 # compat_uid_t
llgfr %r4,%r4 # compat_uid_t
jg sys32_fchown16 # branch to system call
- .globl sys32_getpriority_wrapper
-sys32_getpriority_wrapper:
+ENTRY(sys32_getpriority_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
jg sys_getpriority # branch to system call
- .globl sys32_setpriority_wrapper
-sys32_setpriority_wrapper:
+ENTRY(sys32_setpriority_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
lgfr %r4,%r4 # int
jg sys_setpriority # branch to system call
- .globl compat_sys_statfs_wrapper
-compat_sys_statfs_wrapper:
+ENTRY(compat_sys_statfs_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # struct compat_statfs *
jg compat_sys_statfs # branch to system call
- .globl compat_sys_fstatfs_wrapper
-compat_sys_fstatfs_wrapper:
+ENTRY(compat_sys_fstatfs_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # struct compat_statfs *
jg compat_sys_fstatfs # branch to system call
- .globl compat_sys_socketcall_wrapper
-compat_sys_socketcall_wrapper:
+ENTRY(compat_sys_socketcall_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # u32 *
jg compat_sys_socketcall # branch to system call
- .globl sys32_syslog_wrapper
-sys32_syslog_wrapper:
+ENTRY(sys32_syslog_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # char *
lgfr %r4,%r4 # int
jg sys_syslog # branch to system call
- .globl compat_sys_setitimer_wrapper
-compat_sys_setitimer_wrapper:
+ENTRY(compat_sys_setitimer_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # struct itimerval_emu31 *
llgtr %r4,%r4 # struct itimerval_emu31 *
jg compat_sys_setitimer # branch to system call
- .globl compat_sys_getitimer_wrapper
-compat_sys_getitimer_wrapper:
+ENTRY(compat_sys_getitimer_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # struct itimerval_emu31 *
jg compat_sys_getitimer # branch to system call
- .globl compat_sys_newstat_wrapper
-compat_sys_newstat_wrapper:
+ENTRY(compat_sys_newstat_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # struct stat_emu31 *
jg compat_sys_newstat # branch to system call
- .globl compat_sys_newlstat_wrapper
-compat_sys_newlstat_wrapper:
+ENTRY(compat_sys_newlstat_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # struct stat_emu31 *
jg compat_sys_newlstat # branch to system call
- .globl compat_sys_newfstat_wrapper
-compat_sys_newfstat_wrapper:
+ENTRY(compat_sys_newfstat_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # struct stat_emu31 *
jg compat_sys_newfstat # branch to system call
#sys32_vhangup_wrapper # void
- .globl compat_sys_wait4_wrapper
-compat_sys_wait4_wrapper:
+ENTRY(compat_sys_wait4_wrapper)
lgfr %r2,%r2 # pid_t
llgtr %r3,%r3 # unsigned int *
lgfr %r4,%r4 # int
llgtr %r5,%r5 # struct rusage *
jg compat_sys_wait4 # branch to system call
- .globl sys32_swapoff_wrapper
-sys32_swapoff_wrapper:
+ENTRY(sys32_swapoff_wrapper)
llgtr %r2,%r2 # const char *
jg sys_swapoff # branch to system call
- .globl compat_sys_sysinfo_wrapper
-compat_sys_sysinfo_wrapper:
+ENTRY(compat_sys_sysinfo_wrapper)
llgtr %r2,%r2 # struct sysinfo_emu31 *
jg compat_sys_sysinfo # branch to system call
- .globl sys32_ipc_wrapper
-sys32_ipc_wrapper:
+ENTRY(sys32_ipc_wrapper)
llgfr %r2,%r2 # uint
lgfr %r3,%r3 # int
lgfr %r4,%r4 # int
@@ -529,8 +448,7 @@ sys32_ipc_wrapper:
llgfr %r6,%r6 # u32
jg sys32_ipc # branch to system call
- .globl sys32_fsync_wrapper
-sys32_fsync_wrapper:
+ENTRY(sys32_fsync_wrapper)
llgfr %r2,%r2 # unsigned int
jg sys_fsync # branch to system call
@@ -538,97 +456,81 @@ sys32_fsync_wrapper:
#sys32_clone_wrapper # done in clone_glue
- .globl sys32_setdomainname_wrapper
-sys32_setdomainname_wrapper:
+ENTRY(sys32_setdomainname_wrapper)
llgtr %r2,%r2 # char *
lgfr %r3,%r3 # int
jg sys_setdomainname # branch to system call
- .globl sys32_newuname_wrapper
-sys32_newuname_wrapper:
+ENTRY(sys32_newuname_wrapper)
llgtr %r2,%r2 # struct new_utsname *
jg sys_newuname # branch to system call
- .globl compat_sys_adjtimex_wrapper
-compat_sys_adjtimex_wrapper:
+ENTRY(compat_sys_adjtimex_wrapper)
llgtr %r2,%r2 # struct compat_timex *
jg compat_sys_adjtimex # branch to system call
- .globl sys32_mprotect_wrapper
-sys32_mprotect_wrapper:
+ENTRY(sys32_mprotect_wrapper)
llgtr %r2,%r2 # unsigned long (actually pointer
llgfr %r3,%r3 # size_t
llgfr %r4,%r4 # unsigned long
jg sys_mprotect # branch to system call
- .globl compat_sys_sigprocmask_wrapper
-compat_sys_sigprocmask_wrapper:
+ENTRY(compat_sys_sigprocmask_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # compat_old_sigset_t *
llgtr %r4,%r4 # compat_old_sigset_t *
jg compat_sys_sigprocmask # branch to system call
- .globl sys_init_module_wrapper
-sys_init_module_wrapper:
+ENTRY(sys_init_module_wrapper)
llgtr %r2,%r2 # void *
llgfr %r3,%r3 # unsigned long
llgtr %r4,%r4 # char *
jg sys_init_module # branch to system call
- .globl sys_delete_module_wrapper
-sys_delete_module_wrapper:
+ENTRY(sys_delete_module_wrapper)
llgtr %r2,%r2 # const char *
llgfr %r3,%r3 # unsigned int
jg sys_delete_module # branch to system call
- .globl sys32_quotactl_wrapper
-sys32_quotactl_wrapper:
+ENTRY(sys32_quotactl_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # const char *
llgfr %r4,%r4 # qid_t
llgtr %r5,%r5 # caddr_t
jg sys_quotactl # branch to system call
- .globl sys32_getpgid_wrapper
-sys32_getpgid_wrapper:
+ENTRY(sys32_getpgid_wrapper)
lgfr %r2,%r2 # pid_t
jg sys_getpgid # branch to system call
- .globl sys32_fchdir_wrapper
-sys32_fchdir_wrapper:
+ENTRY(sys32_fchdir_wrapper)
llgfr %r2,%r2 # unsigned int
jg sys_fchdir # branch to system call
- .globl sys32_bdflush_wrapper
-sys32_bdflush_wrapper:
+ENTRY(sys32_bdflush_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # long
jg sys_bdflush # branch to system call
- .globl sys32_sysfs_wrapper
-sys32_sysfs_wrapper:
+ENTRY(sys32_sysfs_wrapper)
lgfr %r2,%r2 # int
llgfr %r3,%r3 # unsigned long
llgfr %r4,%r4 # unsigned long
jg sys_sysfs # branch to system call
- .globl sys32_personality_wrapper
-sys32_personality_wrapper:
+ENTRY(sys32_personality_wrapper)
llgfr %r2,%r2 # unsigned int
jg sys_s390_personality # branch to system call
- .globl sys32_setfsuid16_wrapper
-sys32_setfsuid16_wrapper:
+ENTRY(sys32_setfsuid16_wrapper)
llgfr %r2,%r2 # __kernel_old_uid_emu31_t
jg sys32_setfsuid16 # branch to system call
- .globl sys32_setfsgid16_wrapper
-sys32_setfsgid16_wrapper:
+ENTRY(sys32_setfsgid16_wrapper)
llgfr %r2,%r2 # __kernel_old_gid_emu31_t
jg sys32_setfsgid16 # branch to system call
- .globl sys32_llseek_wrapper
-sys32_llseek_wrapper:
+ENTRY(sys32_llseek_wrapper)
llgfr %r2,%r2 # unsigned int
llgfr %r3,%r3 # unsigned long
llgfr %r4,%r4 # unsigned long
@@ -636,15 +538,13 @@ sys32_llseek_wrapper:
llgfr %r6,%r6 # unsigned int
jg sys_llseek # branch to system call
- .globl sys32_getdents_wrapper
-sys32_getdents_wrapper:
+ENTRY(sys32_getdents_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # void *
llgfr %r4,%r4 # unsigned int
jg compat_sys_getdents # branch to system call
- .globl compat_sys_select_wrapper
-compat_sys_select_wrapper:
+ENTRY(compat_sys_select_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # compat_fd_set *
llgtr %r4,%r4 # compat_fd_set *
@@ -652,112 +552,94 @@ compat_sys_select_wrapper:
llgtr %r6,%r6 # struct compat_timeval *
jg compat_sys_select # branch to system call
- .globl sys32_flock_wrapper
-sys32_flock_wrapper:
+ENTRY(sys32_flock_wrapper)
llgfr %r2,%r2 # unsigned int
llgfr %r3,%r3 # unsigned int
jg sys_flock # branch to system call
- .globl sys32_msync_wrapper
-sys32_msync_wrapper:
+ENTRY(sys32_msync_wrapper)
llgfr %r2,%r2 # unsigned long
llgfr %r3,%r3 # size_t
lgfr %r4,%r4 # int
jg sys_msync # branch to system call
- .globl compat_sys_readv_wrapper
-compat_sys_readv_wrapper:
+ENTRY(compat_sys_readv_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # const struct compat_iovec *
llgfr %r4,%r4 # unsigned long
jg compat_sys_readv # branch to system call
- .globl compat_sys_writev_wrapper
-compat_sys_writev_wrapper:
+ENTRY(compat_sys_writev_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # const struct compat_iovec *
llgfr %r4,%r4 # unsigned long
jg compat_sys_writev # branch to system call
- .globl sys32_getsid_wrapper
-sys32_getsid_wrapper:
+ENTRY(sys32_getsid_wrapper)
lgfr %r2,%r2 # pid_t
jg sys_getsid # branch to system call
- .globl sys32_fdatasync_wrapper
-sys32_fdatasync_wrapper:
+ENTRY(sys32_fdatasync_wrapper)
llgfr %r2,%r2 # unsigned int
jg sys_fdatasync # branch to system call
- .globl sys32_mlock_wrapper
-sys32_mlock_wrapper:
+ENTRY(sys32_mlock_wrapper)
llgfr %r2,%r2 # unsigned long
llgfr %r3,%r3 # size_t
jg sys_mlock # branch to system call
- .globl sys32_munlock_wrapper
-sys32_munlock_wrapper:
+ENTRY(sys32_munlock_wrapper)
llgfr %r2,%r2 # unsigned long
llgfr %r3,%r3 # size_t
jg sys_munlock # branch to system call
- .globl sys32_mlockall_wrapper
-sys32_mlockall_wrapper:
+ENTRY(sys32_mlockall_wrapper)
lgfr %r2,%r2 # int
jg sys_mlockall # branch to system call
#sys32_munlockall_wrapper # void
- .globl sys32_sched_setparam_wrapper
-sys32_sched_setparam_wrapper:
+ENTRY(sys32_sched_setparam_wrapper)
lgfr %r2,%r2 # pid_t
llgtr %r3,%r3 # struct sched_param *
jg sys_sched_setparam # branch to system call
- .globl sys32_sched_getparam_wrapper
-sys32_sched_getparam_wrapper:
+ENTRY(sys32_sched_getparam_wrapper)
lgfr %r2,%r2 # pid_t
llgtr %r3,%r3 # struct sched_param *
jg sys_sched_getparam # branch to system call
- .globl sys32_sched_setscheduler_wrapper
-sys32_sched_setscheduler_wrapper:
+ENTRY(sys32_sched_setscheduler_wrapper)
lgfr %r2,%r2 # pid_t
lgfr %r3,%r3 # int
llgtr %r4,%r4 # struct sched_param *
jg sys_sched_setscheduler # branch to system call
- .globl sys32_sched_getscheduler_wrapper
-sys32_sched_getscheduler_wrapper:
+ENTRY(sys32_sched_getscheduler_wrapper)
lgfr %r2,%r2 # pid_t
jg sys_sched_getscheduler # branch to system call
#sys32_sched_yield_wrapper # void
- .globl sys32_sched_get_priority_max_wrapper
-sys32_sched_get_priority_max_wrapper:
+ENTRY(sys32_sched_get_priority_max_wrapper)
lgfr %r2,%r2 # int
jg sys_sched_get_priority_max # branch to system call
- .globl sys32_sched_get_priority_min_wrapper
-sys32_sched_get_priority_min_wrapper:
+ENTRY(sys32_sched_get_priority_min_wrapper)
lgfr %r2,%r2 # int
jg sys_sched_get_priority_min # branch to system call
- .globl sys32_sched_rr_get_interval_wrapper
-sys32_sched_rr_get_interval_wrapper:
+ENTRY(sys32_sched_rr_get_interval_wrapper)
lgfr %r2,%r2 # pid_t
llgtr %r3,%r3 # struct compat_timespec *
jg sys32_sched_rr_get_interval # branch to system call
- .globl compat_sys_nanosleep_wrapper
-compat_sys_nanosleep_wrapper:
+ENTRY(compat_sys_nanosleep_wrapper)
llgtr %r2,%r2 # struct compat_timespec *
llgtr %r3,%r3 # struct compat_timespec *
jg compat_sys_nanosleep # branch to system call
- .globl sys32_mremap_wrapper
-sys32_mremap_wrapper:
+ENTRY(sys32_mremap_wrapper)
llgfr %r2,%r2 # unsigned long
llgfr %r3,%r3 # unsigned long
llgfr %r4,%r4 # unsigned long
@@ -765,50 +647,43 @@ sys32_mremap_wrapper:
llgfr %r6,%r6 # unsigned long
jg sys_mremap # branch to system call
- .globl sys32_setresuid16_wrapper
-sys32_setresuid16_wrapper:
+ENTRY(sys32_setresuid16_wrapper)
llgfr %r2,%r2 # __kernel_old_uid_emu31_t
llgfr %r3,%r3 # __kernel_old_uid_emu31_t
llgfr %r4,%r4 # __kernel_old_uid_emu31_t
jg sys32_setresuid16 # branch to system call
- .globl sys32_getresuid16_wrapper
-sys32_getresuid16_wrapper:
+ENTRY(sys32_getresuid16_wrapper)
llgtr %r2,%r2 # __kernel_old_uid_emu31_t *
llgtr %r3,%r3 # __kernel_old_uid_emu31_t *
llgtr %r4,%r4 # __kernel_old_uid_emu31_t *
jg sys32_getresuid16 # branch to system call
- .globl sys32_poll_wrapper
-sys32_poll_wrapper:
+ENTRY(sys32_poll_wrapper)
llgtr %r2,%r2 # struct pollfd *
llgfr %r3,%r3 # unsigned int
lgfr %r4,%r4 # long
jg sys_poll # branch to system call
- .globl compat_sys_nfsservctl_wrapper
-compat_sys_nfsservctl_wrapper:
+ENTRY(compat_sys_nfsservctl_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # struct compat_nfsctl_arg*
llgtr %r4,%r4 # union compat_nfsctl_res*
jg compat_sys_nfsservctl # branch to system call
- .globl sys32_setresgid16_wrapper
-sys32_setresgid16_wrapper:
+ENTRY(sys32_setresgid16_wrapper)
llgfr %r2,%r2 # __kernel_old_gid_emu31_t
llgfr %r3,%r3 # __kernel_old_gid_emu31_t
llgfr %r4,%r4 # __kernel_old_gid_emu31_t
jg sys32_setresgid16 # branch to system call
- .globl sys32_getresgid16_wrapper
-sys32_getresgid16_wrapper:
+ENTRY(sys32_getresgid16_wrapper)
llgtr %r2,%r2 # __kernel_old_gid_emu31_t *
llgtr %r3,%r3 # __kernel_old_gid_emu31_t *
llgtr %r4,%r4 # __kernel_old_gid_emu31_t *
jg sys32_getresgid16 # branch to system call
- .globl sys32_prctl_wrapper
-sys32_prctl_wrapper:
+ENTRY(sys32_prctl_wrapper)
lgfr %r2,%r2 # int
llgfr %r3,%r3 # unsigned long
llgfr %r4,%r4 # unsigned long
@@ -818,51 +693,44 @@ sys32_prctl_wrapper:
#sys32_rt_sigreturn_wrapper # done in rt_sigreturn_glue
- .globl sys32_rt_sigaction_wrapper
-sys32_rt_sigaction_wrapper:
+ENTRY(sys32_rt_sigaction_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # const struct sigaction_emu31 *
llgtr %r4,%r4 # const struct sigaction_emu31 *
llgfr %r5,%r5 # size_t
jg sys32_rt_sigaction # branch to system call
- .globl sys32_rt_sigprocmask_wrapper
-sys32_rt_sigprocmask_wrapper:
+ENTRY(sys32_rt_sigprocmask_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # old_sigset_emu31 *
llgtr %r4,%r4 # old_sigset_emu31 *
llgfr %r5,%r5 # size_t
jg sys32_rt_sigprocmask # branch to system call
- .globl sys32_rt_sigpending_wrapper
-sys32_rt_sigpending_wrapper:
+ENTRY(sys32_rt_sigpending_wrapper)
llgtr %r2,%r2 # sigset_emu31 *
llgfr %r3,%r3 # size_t
jg sys32_rt_sigpending # branch to system call
- .globl compat_sys_rt_sigtimedwait_wrapper
-compat_sys_rt_sigtimedwait_wrapper:
+ENTRY(compat_sys_rt_sigtimedwait_wrapper)
llgtr %r2,%r2 # const sigset_emu31_t *
llgtr %r3,%r3 # siginfo_emu31_t *
llgtr %r4,%r4 # const struct compat_timespec *
llgfr %r5,%r5 # size_t
jg compat_sys_rt_sigtimedwait # branch to system call
- .globl sys32_rt_sigqueueinfo_wrapper
-sys32_rt_sigqueueinfo_wrapper:
+ENTRY(sys32_rt_sigqueueinfo_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
llgtr %r4,%r4 # siginfo_emu31_t *
jg sys32_rt_sigqueueinfo # branch to system call
- .globl compat_sys_rt_sigsuspend_wrapper
-compat_sys_rt_sigsuspend_wrapper:
+ENTRY(compat_sys_rt_sigsuspend_wrapper)
llgtr %r2,%r2 # compat_sigset_t *
llgfr %r3,%r3 # compat_size_t
jg compat_sys_rt_sigsuspend
- .globl sys32_pread64_wrapper
-sys32_pread64_wrapper:
+ENTRY(sys32_pread64_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # char *
llgfr %r4,%r4 # size_t
@@ -870,8 +738,7 @@ sys32_pread64_wrapper:
llgfr %r6,%r6 # u32
jg sys32_pread64 # branch to system call
- .globl sys32_pwrite64_wrapper
-sys32_pwrite64_wrapper:
+ENTRY(sys32_pwrite64_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # const char *
llgfr %r4,%r4 # size_t
@@ -879,39 +746,33 @@ sys32_pwrite64_wrapper:
llgfr %r6,%r6 # u32
jg sys32_pwrite64 # branch to system call
- .globl sys32_chown16_wrapper
-sys32_chown16_wrapper:
+ENTRY(sys32_chown16_wrapper)
llgtr %r2,%r2 # const char *
llgfr %r3,%r3 # __kernel_old_uid_emu31_t
llgfr %r4,%r4 # __kernel_old_gid_emu31_t
jg sys32_chown16 # branch to system call
- .globl sys32_getcwd_wrapper
-sys32_getcwd_wrapper:
+ENTRY(sys32_getcwd_wrapper)
llgtr %r2,%r2 # char *
llgfr %r3,%r3 # unsigned long
jg sys_getcwd # branch to system call
- .globl sys32_capget_wrapper
-sys32_capget_wrapper:
+ENTRY(sys32_capget_wrapper)
llgtr %r2,%r2 # cap_user_header_t
llgtr %r3,%r3 # cap_user_data_t
jg sys_capget # branch to system call
- .globl sys32_capset_wrapper
-sys32_capset_wrapper:
+ENTRY(sys32_capset_wrapper)
llgtr %r2,%r2 # cap_user_header_t
llgtr %r3,%r3 # const cap_user_data_t
jg sys_capset # branch to system call
- .globl sys32_sigaltstack_wrapper
-sys32_sigaltstack_wrapper:
+ENTRY(sys32_sigaltstack_wrapper)
llgtr %r2,%r2 # const stack_emu31_t *
llgtr %r3,%r3 # stack_emu31_t *
jg sys32_sigaltstack
- .globl sys32_sendfile_wrapper
-sys32_sendfile_wrapper:
+ENTRY(sys32_sendfile_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
llgtr %r4,%r4 # __kernel_off_emu31_t *
@@ -920,22 +781,19 @@ sys32_sendfile_wrapper:
#sys32_vfork_wrapper # done in vfork_glue
- .globl sys32_truncate64_wrapper
-sys32_truncate64_wrapper:
+ENTRY(sys32_truncate64_wrapper)
llgtr %r2,%r2 # const char *
llgfr %r3,%r3 # unsigned long
llgfr %r4,%r4 # unsigned long
jg sys32_truncate64 # branch to system call
- .globl sys32_ftruncate64_wrapper
-sys32_ftruncate64_wrapper:
+ENTRY(sys32_ftruncate64_wrapper)
llgfr %r2,%r2 # unsigned int
llgfr %r3,%r3 # unsigned long
llgfr %r4,%r4 # unsigned long
jg sys32_ftruncate64 # branch to system call
- .globl sys32_lchown_wrapper
-sys32_lchown_wrapper:
+ENTRY(sys32_lchown_wrapper)
llgtr %r2,%r2 # const char *
llgfr %r3,%r3 # uid_t
llgfr %r4,%r4 # gid_t
@@ -946,156 +804,131 @@ sys32_lchown_wrapper:
#sys32_geteuid_wrapper # void
#sys32_getegid_wrapper # void
- .globl sys32_setreuid_wrapper
-sys32_setreuid_wrapper:
+ENTRY(sys32_setreuid_wrapper)
llgfr %r2,%r2 # uid_t
llgfr %r3,%r3 # uid_t
jg sys_setreuid # branch to system call
- .globl sys32_setregid_wrapper
-sys32_setregid_wrapper:
+ENTRY(sys32_setregid_wrapper)
llgfr %r2,%r2 # gid_t
llgfr %r3,%r3 # gid_t
jg sys_setregid # branch to system call
- .globl sys32_getgroups_wrapper
-sys32_getgroups_wrapper:
+ENTRY(sys32_getgroups_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # gid_t *
jg sys_getgroups # branch to system call
- .globl sys32_setgroups_wrapper
-sys32_setgroups_wrapper:
+ENTRY(sys32_setgroups_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # gid_t *
jg sys_setgroups # branch to system call
- .globl sys32_fchown_wrapper
-sys32_fchown_wrapper:
+ENTRY(sys32_fchown_wrapper)
llgfr %r2,%r2 # unsigned int
llgfr %r3,%r3 # uid_t
llgfr %r4,%r4 # gid_t
jg sys_fchown # branch to system call
- .globl sys32_setresuid_wrapper
-sys32_setresuid_wrapper:
+ENTRY(sys32_setresuid_wrapper)
llgfr %r2,%r2 # uid_t
llgfr %r3,%r3 # uid_t
llgfr %r4,%r4 # uid_t
jg sys_setresuid # branch to system call
- .globl sys32_getresuid_wrapper
-sys32_getresuid_wrapper:
+ENTRY(sys32_getresuid_wrapper)
llgtr %r2,%r2 # uid_t *
llgtr %r3,%r3 # uid_t *
llgtr %r4,%r4 # uid_t *
jg sys_getresuid # branch to system call
- .globl sys32_setresgid_wrapper
-sys32_setresgid_wrapper:
+ENTRY(sys32_setresgid_wrapper)
llgfr %r2,%r2 # gid_t
llgfr %r3,%r3 # gid_t
llgfr %r4,%r4 # gid_t
jg sys_setresgid # branch to system call
- .globl sys32_getresgid_wrapper
-sys32_getresgid_wrapper:
+ENTRY(sys32_getresgid_wrapper)
llgtr %r2,%r2 # gid_t *
llgtr %r3,%r3 # gid_t *
llgtr %r4,%r4 # gid_t *
jg sys_getresgid # branch to system call
- .globl sys32_chown_wrapper
-sys32_chown_wrapper:
+ENTRY(sys32_chown_wrapper)
llgtr %r2,%r2 # const char *
llgfr %r3,%r3 # uid_t
llgfr %r4,%r4 # gid_t
jg sys_chown # branch to system call
- .globl sys32_setuid_wrapper
-sys32_setuid_wrapper:
+ENTRY(sys32_setuid_wrapper)
llgfr %r2,%r2 # uid_t
jg sys_setuid # branch to system call
- .globl sys32_setgid_wrapper
-sys32_setgid_wrapper:
+ENTRY(sys32_setgid_wrapper)
llgfr %r2,%r2 # gid_t
jg sys_setgid # branch to system call
- .globl sys32_setfsuid_wrapper
-sys32_setfsuid_wrapper:
+ENTRY(sys32_setfsuid_wrapper)
llgfr %r2,%r2 # uid_t
jg sys_setfsuid # branch to system call
- .globl sys32_setfsgid_wrapper
-sys32_setfsgid_wrapper:
+ENTRY(sys32_setfsgid_wrapper)
llgfr %r2,%r2 # gid_t
jg sys_setfsgid # branch to system call
- .globl sys32_pivot_root_wrapper
-sys32_pivot_root_wrapper:
+ENTRY(sys32_pivot_root_wrapper)
llgtr %r2,%r2 # const char *
llgtr %r3,%r3 # const char *
jg sys_pivot_root # branch to system call
- .globl sys32_mincore_wrapper
-sys32_mincore_wrapper:
+ENTRY(sys32_mincore_wrapper)
llgfr %r2,%r2 # unsigned long
llgfr %r3,%r3 # size_t
llgtr %r4,%r4 # unsigned char *
jg sys_mincore # branch to system call
- .globl sys32_madvise_wrapper
-sys32_madvise_wrapper:
+ENTRY(sys32_madvise_wrapper)
llgfr %r2,%r2 # unsigned long
llgfr %r3,%r3 # size_t
lgfr %r4,%r4 # int
jg sys_madvise # branch to system call
- .globl sys32_getdents64_wrapper
-sys32_getdents64_wrapper:
+ENTRY(sys32_getdents64_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # void *
llgfr %r4,%r4 # unsigned int
jg sys_getdents64 # branch to system call
- .globl compat_sys_fcntl64_wrapper
-compat_sys_fcntl64_wrapper:
+ENTRY(compat_sys_fcntl64_wrapper)
llgfr %r2,%r2 # unsigned int
llgfr %r3,%r3 # unsigned int
llgfr %r4,%r4 # unsigned long
jg compat_sys_fcntl64 # branch to system call
- .globl sys32_stat64_wrapper
-sys32_stat64_wrapper:
+ENTRY(sys32_stat64_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # struct stat64 *
jg sys32_stat64 # branch to system call
- .globl sys32_lstat64_wrapper
-sys32_lstat64_wrapper:
+ENTRY(sys32_lstat64_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # struct stat64 *
jg sys32_lstat64 # branch to system call
- .globl sys32_stime_wrapper
-sys32_stime_wrapper:
+ENTRY(sys32_stime_wrapper)
llgtr %r2,%r2 # long *
jg compat_sys_stime # branch to system call
- .globl sys32_sysctl_wrapper
-sys32_sysctl_wrapper:
+ENTRY(sys32_sysctl_wrapper)
llgtr %r2,%r2 # struct compat_sysctl_args *
jg compat_sys_sysctl
- .globl sys32_fstat64_wrapper
-sys32_fstat64_wrapper:
+ENTRY(sys32_fstat64_wrapper)
llgfr %r2,%r2 # unsigned long
llgtr %r3,%r3 # struct stat64 *
jg sys32_fstat64 # branch to system call
- .globl compat_sys_futex_wrapper
-compat_sys_futex_wrapper:
+ENTRY(compat_sys_futex_wrapper)
llgtr %r2,%r2 # u32 *
lgfr %r3,%r3 # int
lgfr %r4,%r4 # int
@@ -1105,8 +938,7 @@ compat_sys_futex_wrapper:
stg %r0,160(%r15)
jg compat_sys_futex # branch to system call
- .globl sys32_setxattr_wrapper
-sys32_setxattr_wrapper:
+ENTRY(sys32_setxattr_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # char *
llgtr %r4,%r4 # void *
@@ -1114,8 +946,7 @@ sys32_setxattr_wrapper:
lgfr %r6,%r6 # int
jg sys_setxattr
- .globl sys32_lsetxattr_wrapper
-sys32_lsetxattr_wrapper:
+ENTRY(sys32_lsetxattr_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # char *
llgtr %r4,%r4 # void *
@@ -1123,8 +954,7 @@ sys32_lsetxattr_wrapper:
lgfr %r6,%r6 # int
jg sys_lsetxattr
- .globl sys32_fsetxattr_wrapper
-sys32_fsetxattr_wrapper:
+ENTRY(sys32_fsetxattr_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # char *
llgtr %r4,%r4 # void *
@@ -1132,124 +962,106 @@ sys32_fsetxattr_wrapper:
lgfr %r6,%r6 # int
jg sys_fsetxattr
- .globl sys32_getxattr_wrapper
-sys32_getxattr_wrapper:
+ENTRY(sys32_getxattr_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # char *
llgtr %r4,%r4 # void *
llgfr %r5,%r5 # size_t
jg sys_getxattr
- .globl sys32_lgetxattr_wrapper
-sys32_lgetxattr_wrapper:
+ENTRY(sys32_lgetxattr_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # char *
llgtr %r4,%r4 # void *
llgfr %r5,%r5 # size_t
jg sys_lgetxattr
- .globl sys32_fgetxattr_wrapper
-sys32_fgetxattr_wrapper:
+ENTRY(sys32_fgetxattr_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # char *
llgtr %r4,%r4 # void *
llgfr %r5,%r5 # size_t
jg sys_fgetxattr
- .globl sys32_listxattr_wrapper
-sys32_listxattr_wrapper:
+ENTRY(sys32_listxattr_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # char *
llgfr %r4,%r4 # size_t
jg sys_listxattr
- .globl sys32_llistxattr_wrapper
-sys32_llistxattr_wrapper:
+ENTRY(sys32_llistxattr_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # char *
llgfr %r4,%r4 # size_t
jg sys_llistxattr
- .globl sys32_flistxattr_wrapper
-sys32_flistxattr_wrapper:
+ENTRY(sys32_flistxattr_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # char *
llgfr %r4,%r4 # size_t
jg sys_flistxattr
- .globl sys32_removexattr_wrapper
-sys32_removexattr_wrapper:
+ENTRY(sys32_removexattr_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # char *
jg sys_removexattr
- .globl sys32_lremovexattr_wrapper
-sys32_lremovexattr_wrapper:
+ENTRY(sys32_lremovexattr_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # char *
jg sys_lremovexattr
- .globl sys32_fremovexattr_wrapper
-sys32_fremovexattr_wrapper:
+ENTRY(sys32_fremovexattr_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # char *
jg sys_fremovexattr
- .globl sys32_sched_setaffinity_wrapper
-sys32_sched_setaffinity_wrapper:
+ENTRY(sys32_sched_setaffinity_wrapper)
lgfr %r2,%r2 # int
llgfr %r3,%r3 # unsigned int
llgtr %r4,%r4 # unsigned long *
jg compat_sys_sched_setaffinity
- .globl sys32_sched_getaffinity_wrapper
-sys32_sched_getaffinity_wrapper:
+ENTRY(sys32_sched_getaffinity_wrapper)
lgfr %r2,%r2 # int
llgfr %r3,%r3 # unsigned int
llgtr %r4,%r4 # unsigned long *
jg compat_sys_sched_getaffinity
- .globl sys32_exit_group_wrapper
-sys32_exit_group_wrapper:
+ENTRY(sys32_exit_group_wrapper)
lgfr %r2,%r2 # int
jg sys_exit_group # branch to system call
- .globl sys32_set_tid_address_wrapper
-sys32_set_tid_address_wrapper:
+ENTRY(sys32_set_tid_address_wrapper)
llgtr %r2,%r2 # int *
jg sys_set_tid_address # branch to system call
- .globl sys_epoll_create_wrapper
-sys_epoll_create_wrapper:
+ENTRY(sys_epoll_create_wrapper)
lgfr %r2,%r2 # int
jg sys_epoll_create # branch to system call
- .globl sys_epoll_ctl_wrapper
-sys_epoll_ctl_wrapper:
+ENTRY(sys_epoll_ctl_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
lgfr %r4,%r4 # int
llgtr %r5,%r5 # struct epoll_event *
jg sys_epoll_ctl # branch to system call
- .globl sys_epoll_wait_wrapper
-sys_epoll_wait_wrapper:
+ENTRY(sys_epoll_wait_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # struct epoll_event *
lgfr %r4,%r4 # int
lgfr %r5,%r5 # int
jg sys_epoll_wait # branch to system call
- .globl sys32_lookup_dcookie_wrapper
-sys32_lookup_dcookie_wrapper:
+ENTRY(sys32_lookup_dcookie_wrapper)
sllg %r2,%r2,32 # get high word of 64bit dcookie
or %r2,%r3 # get low word of 64bit dcookie
llgtr %r3,%r4 # char *
llgfr %r4,%r5 # size_t
jg sys_lookup_dcookie
- .globl sys32_fadvise64_wrapper
-sys32_fadvise64_wrapper:
+ENTRY(sys32_fadvise64_wrapper)
lgfr %r2,%r2 # int
sllg %r3,%r3,32 # get high word of 64bit loff_t
or %r3,%r4 # get low word of 64bit loff_t
@@ -1257,81 +1069,68 @@ sys32_fadvise64_wrapper:
lgfr %r5,%r6 # int
jg sys32_fadvise64
- .globl sys32_fadvise64_64_wrapper
-sys32_fadvise64_64_wrapper:
+ENTRY(sys32_fadvise64_64_wrapper)
llgtr %r2,%r2 # struct fadvise64_64_args *
jg sys32_fadvise64_64
- .globl sys32_clock_settime_wrapper
-sys32_clock_settime_wrapper:
+ENTRY(sys32_clock_settime_wrapper)
lgfr %r2,%r2 # clockid_t (int)
llgtr %r3,%r3 # struct compat_timespec *
jg compat_sys_clock_settime
- .globl sys32_clock_gettime_wrapper
-sys32_clock_gettime_wrapper:
+ENTRY(sys32_clock_gettime_wrapper)
lgfr %r2,%r2 # clockid_t (int)
llgtr %r3,%r3 # struct compat_timespec *
jg compat_sys_clock_gettime
- .globl sys32_clock_getres_wrapper
-sys32_clock_getres_wrapper:
+ENTRY(sys32_clock_getres_wrapper)
lgfr %r2,%r2 # clockid_t (int)
llgtr %r3,%r3 # struct compat_timespec *
jg compat_sys_clock_getres
- .globl sys32_clock_nanosleep_wrapper
-sys32_clock_nanosleep_wrapper:
+ENTRY(sys32_clock_nanosleep_wrapper)
lgfr %r2,%r2 # clockid_t (int)
lgfr %r3,%r3 # int
llgtr %r4,%r4 # struct compat_timespec *
llgtr %r5,%r5 # struct compat_timespec *
jg compat_sys_clock_nanosleep
- .globl sys32_timer_create_wrapper
-sys32_timer_create_wrapper:
+ENTRY(sys32_timer_create_wrapper)
lgfr %r2,%r2 # timer_t (int)
llgtr %r3,%r3 # struct compat_sigevent *
llgtr %r4,%r4 # timer_t *
jg compat_sys_timer_create
- .globl sys32_timer_settime_wrapper
-sys32_timer_settime_wrapper:
+ENTRY(sys32_timer_settime_wrapper)
lgfr %r2,%r2 # timer_t (int)
lgfr %r3,%r3 # int
llgtr %r4,%r4 # struct compat_itimerspec *
llgtr %r5,%r5 # struct compat_itimerspec *
jg compat_sys_timer_settime
- .globl sys32_timer_gettime_wrapper
-sys32_timer_gettime_wrapper:
+ENTRY(sys32_timer_gettime_wrapper)
lgfr %r2,%r2 # timer_t (int)
llgtr %r3,%r3 # struct compat_itimerspec *
jg compat_sys_timer_gettime
- .globl sys32_timer_getoverrun_wrapper
-sys32_timer_getoverrun_wrapper:
+ENTRY(sys32_timer_getoverrun_wrapper)
lgfr %r2,%r2 # timer_t (int)
jg sys_timer_getoverrun
- .globl sys32_timer_delete_wrapper
-sys32_timer_delete_wrapper:
+ENTRY(sys32_timer_delete_wrapper)
lgfr %r2,%r2 # timer_t (int)
jg sys_timer_delete
- .globl sys32_io_setup_wrapper
-sys32_io_setup_wrapper:
+ENTRY(sys32_io_setup_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # u32 *
jg compat_sys_io_setup
- .globl sys32_io_destroy_wrapper
-sys32_io_destroy_wrapper:
+ENTRY(sys32_io_destroy_wrapper)
llgfr %r2,%r2 # (aio_context_t) u32
jg sys_io_destroy
- .globl sys32_io_getevents_wrapper
-sys32_io_getevents_wrapper:
+ENTRY(sys32_io_getevents_wrapper)
llgfr %r2,%r2 # (aio_context_t) u32
lgfr %r3,%r3 # long
lgfr %r4,%r4 # long
@@ -1339,49 +1138,42 @@ sys32_io_getevents_wrapper:
llgtr %r6,%r6 # struct compat_timespec *
jg compat_sys_io_getevents
- .globl sys32_io_submit_wrapper
-sys32_io_submit_wrapper:
+ENTRY(sys32_io_submit_wrapper)
llgfr %r2,%r2 # (aio_context_t) u32
lgfr %r3,%r3 # long
llgtr %r4,%r4 # struct iocb **
jg compat_sys_io_submit
- .globl sys32_io_cancel_wrapper
-sys32_io_cancel_wrapper:
+ENTRY(sys32_io_cancel_wrapper)
llgfr %r2,%r2 # (aio_context_t) u32
llgtr %r3,%r3 # struct iocb *
llgtr %r4,%r4 # struct io_event *
jg sys_io_cancel
- .globl compat_sys_statfs64_wrapper
-compat_sys_statfs64_wrapper:
+ENTRY(compat_sys_statfs64_wrapper)
llgtr %r2,%r2 # const char *
llgfr %r3,%r3 # compat_size_t
llgtr %r4,%r4 # struct compat_statfs64 *
jg compat_sys_statfs64
- .globl compat_sys_fstatfs64_wrapper
-compat_sys_fstatfs64_wrapper:
+ENTRY(compat_sys_fstatfs64_wrapper)
llgfr %r2,%r2 # unsigned int fd
llgfr %r3,%r3 # compat_size_t
llgtr %r4,%r4 # struct compat_statfs64 *
jg compat_sys_fstatfs64
- .globl compat_sys_mq_open_wrapper
-compat_sys_mq_open_wrapper:
+ENTRY(compat_sys_mq_open_wrapper)
llgtr %r2,%r2 # const char *
lgfr %r3,%r3 # int
llgfr %r4,%r4 # mode_t
llgtr %r5,%r5 # struct compat_mq_attr *
jg compat_sys_mq_open
- .globl sys32_mq_unlink_wrapper
-sys32_mq_unlink_wrapper:
+ENTRY(sys32_mq_unlink_wrapper)
llgtr %r2,%r2 # const char *
jg sys_mq_unlink
- .globl compat_sys_mq_timedsend_wrapper
-compat_sys_mq_timedsend_wrapper:
+ENTRY(compat_sys_mq_timedsend_wrapper)
lgfr %r2,%r2 # mqd_t
llgtr %r3,%r3 # const char *
llgfr %r4,%r4 # size_t
@@ -1389,8 +1181,7 @@ compat_sys_mq_timedsend_wrapper:
llgtr %r6,%r6 # const struct compat_timespec *
jg compat_sys_mq_timedsend
- .globl compat_sys_mq_timedreceive_wrapper
-compat_sys_mq_timedreceive_wrapper:
+ENTRY(compat_sys_mq_timedreceive_wrapper)
lgfr %r2,%r2 # mqd_t
llgtr %r3,%r3 # char *
llgfr %r4,%r4 # size_t
@@ -1398,21 +1189,18 @@ compat_sys_mq_timedreceive_wrapper:
llgtr %r6,%r6 # const struct compat_timespec *
jg compat_sys_mq_timedreceive
- .globl compat_sys_mq_notify_wrapper
-compat_sys_mq_notify_wrapper:
+ENTRY(compat_sys_mq_notify_wrapper)
lgfr %r2,%r2 # mqd_t
llgtr %r3,%r3 # struct compat_sigevent *
jg compat_sys_mq_notify
- .globl compat_sys_mq_getsetattr_wrapper
-compat_sys_mq_getsetattr_wrapper:
+ENTRY(compat_sys_mq_getsetattr_wrapper)
lgfr %r2,%r2 # mqd_t
llgtr %r3,%r3 # struct compat_mq_attr *
llgtr %r4,%r4 # struct compat_mq_attr *
jg compat_sys_mq_getsetattr
- .globl compat_sys_add_key_wrapper
-compat_sys_add_key_wrapper:
+ENTRY(compat_sys_add_key_wrapper)
llgtr %r2,%r2 # const char *
llgtr %r3,%r3 # const char *
llgtr %r4,%r4 # const void *
@@ -1420,16 +1208,14 @@ compat_sys_add_key_wrapper:
llgfr %r6,%r6 # (key_serial_t) u32
jg sys_add_key
- .globl compat_sys_request_key_wrapper
-compat_sys_request_key_wrapper:
+ENTRY(compat_sys_request_key_wrapper)
llgtr %r2,%r2 # const char *
llgtr %r3,%r3 # const char *
llgtr %r4,%r4 # const void *
llgfr %r5,%r5 # (key_serial_t) u32
jg sys_request_key
- .globl sys32_remap_file_pages_wrapper
-sys32_remap_file_pages_wrapper:
+ENTRY(sys32_remap_file_pages_wrapper)
llgfr %r2,%r2 # unsigned long
llgfr %r3,%r3 # unsigned long
llgfr %r4,%r4 # unsigned long
@@ -1437,8 +1223,7 @@ sys32_remap_file_pages_wrapper:
llgfr %r6,%r6 # unsigned long
jg sys_remap_file_pages
- .globl compat_sys_waitid_wrapper
-compat_sys_waitid_wrapper:
+ENTRY(compat_sys_waitid_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # pid_t
llgtr %r4,%r4 # siginfo_emu31_t *
@@ -1446,65 +1231,56 @@ compat_sys_waitid_wrapper:
llgtr %r6,%r6 # struct rusage_emu31 *
jg compat_sys_waitid
- .globl compat_sys_kexec_load_wrapper
-compat_sys_kexec_load_wrapper:
+ENTRY(compat_sys_kexec_load_wrapper)
llgfr %r2,%r2 # unsigned long
llgfr %r3,%r3 # unsigned long
llgtr %r4,%r4 # struct kexec_segment *
llgfr %r5,%r5 # unsigned long
jg compat_sys_kexec_load
- .globl sys_ioprio_set_wrapper
-sys_ioprio_set_wrapper:
+ENTRY(sys_ioprio_set_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
lgfr %r4,%r4 # int
jg sys_ioprio_set
- .globl sys_ioprio_get_wrapper
-sys_ioprio_get_wrapper:
+ENTRY(sys_ioprio_get_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
jg sys_ioprio_get
- .globl sys_inotify_add_watch_wrapper
-sys_inotify_add_watch_wrapper:
+ENTRY(sys_inotify_add_watch_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # const char *
llgfr %r4,%r4 # u32
jg sys_inotify_add_watch
- .globl sys_inotify_rm_watch_wrapper
-sys_inotify_rm_watch_wrapper:
+ENTRY(sys_inotify_rm_watch_wrapper)
lgfr %r2,%r2 # int
llgfr %r3,%r3 # u32
jg sys_inotify_rm_watch
- .globl compat_sys_openat_wrapper
-compat_sys_openat_wrapper:
+ENTRY(compat_sys_openat_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # const char *
lgfr %r4,%r4 # int
lgfr %r5,%r5 # int
jg compat_sys_openat
- .globl sys_mkdirat_wrapper
-sys_mkdirat_wrapper:
+ENTRY(sys_mkdirat_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # const char *
lgfr %r4,%r4 # int
jg sys_mkdirat
- .globl sys_mknodat_wrapper
-sys_mknodat_wrapper:
+ENTRY(sys_mknodat_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # const char *
lgfr %r4,%r4 # int
llgfr %r5,%r5 # unsigned int
jg sys_mknodat
- .globl sys_fchownat_wrapper
-sys_fchownat_wrapper:
+ENTRY(sys_fchownat_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # const char *
llgfr %r4,%r4 # uid_t
@@ -1512,38 +1288,33 @@ sys_fchownat_wrapper:
lgfr %r6,%r6 # int
jg sys_fchownat
- .globl compat_sys_futimesat_wrapper
-compat_sys_futimesat_wrapper:
+ENTRY(compat_sys_futimesat_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # char *
llgtr %r4,%r4 # struct timeval *
jg compat_sys_futimesat
- .globl sys32_fstatat64_wrapper
-sys32_fstatat64_wrapper:
+ENTRY(sys32_fstatat64_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # char *
llgtr %r4,%r4 # struct stat64 *
lgfr %r5,%r5 # int
jg sys32_fstatat64
- .globl sys_unlinkat_wrapper
-sys_unlinkat_wrapper:
+ENTRY(sys_unlinkat_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # const char *
lgfr %r4,%r4 # int
jg sys_unlinkat
- .globl sys_renameat_wrapper
-sys_renameat_wrapper:
+ENTRY(sys_renameat_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # const char *
lgfr %r4,%r4 # int
llgtr %r5,%r5 # const char *
jg sys_renameat
- .globl sys_linkat_wrapper
-sys_linkat_wrapper:
+ENTRY(sys_linkat_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # const char *
lgfr %r4,%r4 # int
@@ -1551,37 +1322,32 @@ sys_linkat_wrapper:
lgfr %r6,%r6 # int
jg sys_linkat
- .globl sys_symlinkat_wrapper
-sys_symlinkat_wrapper:
+ENTRY(sys_symlinkat_wrapper)
llgtr %r2,%r2 # const char *
lgfr %r3,%r3 # int
llgtr %r4,%r4 # const char *
jg sys_symlinkat
- .globl sys_readlinkat_wrapper
-sys_readlinkat_wrapper:
+ENTRY(sys_readlinkat_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # const char *
llgtr %r4,%r4 # char *
lgfr %r5,%r5 # int
jg sys_readlinkat
- .globl sys_fchmodat_wrapper
-sys_fchmodat_wrapper:
+ENTRY(sys_fchmodat_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # const char *
llgfr %r4,%r4 # mode_t
jg sys_fchmodat
- .globl sys_faccessat_wrapper
-sys_faccessat_wrapper:
+ENTRY(sys_faccessat_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # const char *
lgfr %r4,%r4 # int
jg sys_faccessat
- .globl compat_sys_pselect6_wrapper
-compat_sys_pselect6_wrapper:
+ENTRY(compat_sys_pselect6_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # fd_set *
llgtr %r4,%r4 # fd_set *
@@ -1591,8 +1357,7 @@ compat_sys_pselect6_wrapper:
stg %r0,160(%r15)
jg compat_sys_pselect6
- .globl compat_sys_ppoll_wrapper
-compat_sys_ppoll_wrapper:
+ENTRY(compat_sys_ppoll_wrapper)
llgtr %r2,%r2 # struct pollfd *
llgfr %r3,%r3 # unsigned int
llgtr %r4,%r4 # struct timespec *
@@ -1600,26 +1365,22 @@ compat_sys_ppoll_wrapper:
llgfr %r6,%r6 # size_t
jg compat_sys_ppoll
- .globl sys_unshare_wrapper
-sys_unshare_wrapper:
+ENTRY(sys_unshare_wrapper)
llgfr %r2,%r2 # unsigned long
jg sys_unshare
- .globl compat_sys_set_robust_list_wrapper
-compat_sys_set_robust_list_wrapper:
+ENTRY(compat_sys_set_robust_list_wrapper)
llgtr %r2,%r2 # struct compat_robust_list_head *
llgfr %r3,%r3 # size_t
jg compat_sys_set_robust_list
- .globl compat_sys_get_robust_list_wrapper
-compat_sys_get_robust_list_wrapper:
+ENTRY(compat_sys_get_robust_list_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # compat_uptr_t_t *
llgtr %r4,%r4 # compat_size_t *
jg compat_sys_get_robust_list
- .globl sys_splice_wrapper
-sys_splice_wrapper:
+ENTRY(sys_splice_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # loff_t *
lgfr %r4,%r4 # int
@@ -1629,8 +1390,7 @@ sys_splice_wrapper:
stg %r0,160(%r15)
jg sys_splice
- .globl sys_sync_file_range_wrapper
-sys_sync_file_range_wrapper:
+ENTRY(sys_sync_file_range_wrapper)
lgfr %r2,%r2 # int
sllg %r3,%r3,32 # get high word of 64bit loff_t
or %r3,%r4 # get low word of 64bit loff_t
@@ -1639,31 +1399,27 @@ sys_sync_file_range_wrapper:
llgf %r5,164(%r15) # unsigned int
jg sys_sync_file_range
- .globl sys_tee_wrapper
-sys_tee_wrapper:
+ENTRY(sys_tee_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
llgfr %r4,%r4 # size_t
llgfr %r5,%r5 # unsigned int
jg sys_tee
- .globl compat_sys_vmsplice_wrapper
-compat_sys_vmsplice_wrapper:
+ENTRY(compat_sys_vmsplice_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # compat_iovec *
llgfr %r4,%r4 # unsigned int
llgfr %r5,%r5 # unsigned int
jg compat_sys_vmsplice
- .globl sys_getcpu_wrapper
-sys_getcpu_wrapper:
+ENTRY(sys_getcpu_wrapper)
llgtr %r2,%r2 # unsigned *
llgtr %r3,%r3 # unsigned *
llgtr %r4,%r4 # struct getcpu_cache *
jg sys_getcpu
- .globl compat_sys_epoll_pwait_wrapper
-compat_sys_epoll_pwait_wrapper:
+ENTRY(compat_sys_epoll_pwait_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # struct compat_epoll_event *
lgfr %r4,%r4 # int
@@ -1673,34 +1429,29 @@ compat_sys_epoll_pwait_wrapper:
stg %r0,160(%r15)
jg compat_sys_epoll_pwait
- .globl compat_sys_utimes_wrapper
-compat_sys_utimes_wrapper:
+ENTRY(compat_sys_utimes_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # struct compat_timeval *
jg compat_sys_utimes
- .globl compat_sys_utimensat_wrapper
-compat_sys_utimensat_wrapper:
+ENTRY(compat_sys_utimensat_wrapper)
llgfr %r2,%r2 # unsigned int
llgtr %r3,%r3 # char *
llgtr %r4,%r4 # struct compat_timespec *
lgfr %r5,%r5 # int
jg compat_sys_utimensat
- .globl compat_sys_signalfd_wrapper
-compat_sys_signalfd_wrapper:
+ENTRY(compat_sys_signalfd_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # compat_sigset_t *
llgfr %r4,%r4 # compat_size_t
jg compat_sys_signalfd
- .globl sys_eventfd_wrapper
-sys_eventfd_wrapper:
+ENTRY(sys_eventfd_wrapper)
llgfr %r2,%r2 # unsigned int
jg sys_eventfd
- .globl sys_fallocate_wrapper
-sys_fallocate_wrapper:
+ENTRY(sys_fallocate_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
sllg %r4,%r4,32 # get high word of 64bit loff_t
@@ -1709,94 +1460,80 @@ sys_fallocate_wrapper:
l %r5,164(%r15) # get low word of 64bit loff_t
jg sys_fallocate
- .globl sys_timerfd_create_wrapper
-sys_timerfd_create_wrapper:
+ENTRY(sys_timerfd_create_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
jg sys_timerfd_create
- .globl compat_sys_timerfd_settime_wrapper
-compat_sys_timerfd_settime_wrapper:
+ENTRY(compat_sys_timerfd_settime_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
llgtr %r4,%r4 # struct compat_itimerspec *
llgtr %r5,%r5 # struct compat_itimerspec *
jg compat_sys_timerfd_settime
- .globl compat_sys_timerfd_gettime_wrapper
-compat_sys_timerfd_gettime_wrapper:
+ENTRY(compat_sys_timerfd_gettime_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # struct compat_itimerspec *
jg compat_sys_timerfd_gettime
- .globl compat_sys_signalfd4_wrapper
-compat_sys_signalfd4_wrapper:
+ENTRY(compat_sys_signalfd4_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # compat_sigset_t *
llgfr %r4,%r4 # compat_size_t
lgfr %r5,%r5 # int
jg compat_sys_signalfd4
- .globl sys_eventfd2_wrapper
-sys_eventfd2_wrapper:
+ENTRY(sys_eventfd2_wrapper)
llgfr %r2,%r2 # unsigned int
lgfr %r3,%r3 # int
jg sys_eventfd2
- .globl sys_inotify_init1_wrapper
-sys_inotify_init1_wrapper:
+ENTRY(sys_inotify_init1_wrapper)
lgfr %r2,%r2 # int
jg sys_inotify_init1
- .globl sys_pipe2_wrapper
-sys_pipe2_wrapper:
+ENTRY(sys_pipe2_wrapper)
llgtr %r2,%r2 # u32 *
lgfr %r3,%r3 # int
jg sys_pipe2 # branch to system call
- .globl sys_dup3_wrapper
-sys_dup3_wrapper:
+ENTRY(sys_dup3_wrapper)
llgfr %r2,%r2 # unsigned int
llgfr %r3,%r3 # unsigned int
lgfr %r4,%r4 # int
jg sys_dup3 # branch to system call
- .globl sys_epoll_create1_wrapper
-sys_epoll_create1_wrapper:
+ENTRY(sys_epoll_create1_wrapper)
lgfr %r2,%r2 # int
jg sys_epoll_create1 # branch to system call
- .globl sys32_readahead_wrapper
-sys32_readahead_wrapper:
+ENTRY(sys32_readahead_wrapper)
lgfr %r2,%r2 # int
llgfr %r3,%r3 # u32
llgfr %r4,%r4 # u32
lgfr %r5,%r5 # s32
jg sys32_readahead # branch to system call
- .globl sys32_sendfile64_wrapper
-sys32_sendfile64_wrapper:
+ENTRY(sys32_sendfile64_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
llgtr %r4,%r4 # compat_loff_t *
lgfr %r5,%r5 # s32
jg sys32_sendfile64 # branch to system call
- .globl sys_tkill_wrapper
-sys_tkill_wrapper:
+ENTRY(sys_tkill_wrapper)
lgfr %r2,%r2 # pid_t
lgfr %r3,%r3 # int
jg sys_tkill # branch to system call
- .globl sys_tgkill_wrapper
-sys_tgkill_wrapper:
+ENTRY(sys_tgkill_wrapper)
lgfr %r2,%r2 # pid_t
lgfr %r3,%r3 # pid_t
lgfr %r4,%r4 # int
jg sys_tgkill # branch to system call
- .globl compat_sys_keyctl_wrapper
-compat_sys_keyctl_wrapper:
+ENTRY(compat_sys_keyctl_wrapper)
llgfr %r2,%r2 # u32
llgfr %r3,%r3 # u32
llgfr %r4,%r4 # u32
@@ -1804,8 +1541,7 @@ compat_sys_keyctl_wrapper:
llgfr %r6,%r6 # u32
jg compat_sys_keyctl # branch to system call
- .globl compat_sys_preadv_wrapper
-compat_sys_preadv_wrapper:
+ENTRY(compat_sys_preadv_wrapper)
llgfr %r2,%r2 # unsigned long
llgtr %r3,%r3 # compat_iovec *
llgfr %r4,%r4 # unsigned long
@@ -1813,8 +1549,7 @@ compat_sys_preadv_wrapper:
llgfr %r6,%r6 # u32
jg compat_sys_preadv # branch to system call
- .globl compat_sys_pwritev_wrapper
-compat_sys_pwritev_wrapper:
+ENTRY(compat_sys_pwritev_wrapper)
llgfr %r2,%r2 # unsigned long
llgtr %r3,%r3 # compat_iovec *
llgfr %r4,%r4 # unsigned long
@@ -1822,16 +1557,14 @@ compat_sys_pwritev_wrapper:
llgfr %r6,%r6 # u32
jg compat_sys_pwritev # branch to system call
- .globl compat_sys_rt_tgsigqueueinfo_wrapper
-compat_sys_rt_tgsigqueueinfo_wrapper:
+ENTRY(compat_sys_rt_tgsigqueueinfo_wrapper)
lgfr %r2,%r2 # compat_pid_t
lgfr %r3,%r3 # compat_pid_t
lgfr %r4,%r4 # int
llgtr %r5,%r5 # struct compat_siginfo *
jg compat_sys_rt_tgsigqueueinfo_wrapper # branch to system call
- .globl sys_perf_event_open_wrapper
-sys_perf_event_open_wrapper:
+ENTRY(sys_perf_event_open_wrapper)
llgtr %r2,%r2 # const struct perf_event_attr *
lgfr %r3,%r3 # pid_t
lgfr %r4,%r4 # int
@@ -1839,29 +1572,25 @@ sys_perf_event_open_wrapper:
llgfr %r6,%r6 # unsigned long
jg sys_perf_event_open # branch to system call
- .globl sys_clone_wrapper
-sys_clone_wrapper:
+ENTRY(sys_clone_wrapper)
llgfr %r2,%r2 # unsigned long
llgfr %r3,%r3 # unsigned long
llgtr %r4,%r4 # int *
llgtr %r5,%r5 # int *
jg sys_clone # branch to system call
- .globl sys32_execve_wrapper
-sys32_execve_wrapper:
+ENTRY(sys32_execve_wrapper)
llgtr %r2,%r2 # char *
llgtr %r3,%r3 # compat_uptr_t *
llgtr %r4,%r4 # compat_uptr_t *
jg sys32_execve # branch to system call
- .globl sys_fanotify_init_wrapper
-sys_fanotify_init_wrapper:
+ENTRY(sys_fanotify_init_wrapper)
llgfr %r2,%r2 # unsigned int
llgfr %r3,%r3 # unsigned int
jg sys_fanotify_init # branch to system call
- .globl sys_fanotify_mark_wrapper
-sys_fanotify_mark_wrapper:
+ENTRY(sys_fanotify_mark_wrapper)
lgfr %r2,%r2 # int
llgfr %r3,%r3 # unsigned int
sllg %r4,%r4,32 # get high word of 64bit mask
@@ -1870,16 +1599,14 @@ sys_fanotify_mark_wrapper:
llgt %r6,164(%r15) # char *
jg sys_fanotify_mark # branch to system call
- .globl sys_prlimit64_wrapper
-sys_prlimit64_wrapper:
+ENTRY(sys_prlimit64_wrapper)
lgfr %r2,%r2 # pid_t
llgfr %r3,%r3 # unsigned int
llgtr %r4,%r4 # const struct rlimit64 __user *
llgtr %r5,%r5 # struct rlimit64 __user *
jg sys_prlimit64 # branch to system call
- .globl sys_name_to_handle_at_wrapper
-sys_name_to_handle_at_wrapper:
+ENTRY(sys_name_to_handle_at_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # const char __user *
llgtr %r4,%r4 # struct file_handle __user *
@@ -1887,21 +1614,18 @@ sys_name_to_handle_at_wrapper:
lgfr %r6,%r6 # int
jg sys_name_to_handle_at
- .globl compat_sys_open_by_handle_at_wrapper
-compat_sys_open_by_handle_at_wrapper:
+ENTRY(compat_sys_open_by_handle_at_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # struct file_handle __user *
lgfr %r4,%r4 # int
jg compat_sys_open_by_handle_at
- .globl compat_sys_clock_adjtime_wrapper
-compat_sys_clock_adjtime_wrapper:
+ENTRY(compat_sys_clock_adjtime_wrapper)
lgfr %r2,%r2 # clockid_t (int)
llgtr %r3,%r3 # struct compat_timex __user *
jg compat_sys_clock_adjtime
- .globl sys_syncfs_wrapper
-sys_syncfs_wrapper:
+ENTRY(sys_syncfs_wrapper)
lgfr %r2,%r2 # int
jg sys_syncfs
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 0476174dfff5..3eab7cfab07c 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -9,8 +9,8 @@
* Heiko Carstens <heiko.carstens@de.ibm.com>
*/
-#include <linux/linkage.h>
#include <linux/init.h>
+#include <linux/linkage.h>
#include <asm/cache.h>
#include <asm/errno.h>
#include <asm/ptrace.h>
@@ -197,8 +197,7 @@ STACK_SIZE = 1 << STACK_SHIFT
* Returns:
* gpr2 = prev
*/
- .globl __switch_to
-__switch_to:
+ENTRY(__switch_to)
basr %r1,0
0: l %r4,__THREAD_info(%r2) # get thread_info of prev
l %r5,__THREAD_info(%r3) # get thread_info of next
@@ -224,8 +223,7 @@ __critical_start:
* are executed with interrupts enabled.
*/
- .globl system_call
-system_call:
+ENTRY(system_call)
stpt __LC_SYNC_ENTER_TIMER
sysc_saveall:
SAVE_ALL_SVC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
@@ -388,8 +386,7 @@ sysc_tracenogo:
#
# a new process exits the kernel with ret_from_fork
#
- .globl ret_from_fork
-ret_from_fork:
+ENTRY(ret_from_fork)
l %r13,__LC_SVC_NEW_PSW+4
l %r12,__LC_THREAD_INFO # load pointer to thread_info struct
tm SP_PSW+1(%r15),0x01 # forking a kernel thread ?
@@ -405,8 +402,7 @@ ret_from_fork:
# kernel_execve function needs to deal with pt_regs that is not
# at the usual place
#
- .globl kernel_execve
-kernel_execve:
+ENTRY(kernel_execve)
stm %r12,%r15,48(%r15)
lr %r14,%r15
l %r13,__LC_SVC_NEW_PSW+4
@@ -438,8 +434,7 @@ kernel_execve:
* Program check handler routine
*/
- .globl pgm_check_handler
-pgm_check_handler:
+ENTRY(pgm_check_handler)
/*
* First we need to check for a special case:
* Single stepping an instruction that disables the PER event mask will
@@ -565,8 +560,7 @@ kernel_per:
* IO interrupt handler routine
*/
- .globl io_int_handler
-io_int_handler:
+ENTRY(io_int_handler)
stck __LC_INT_CLOCK
stpt __LC_ASYNC_ENTER_TIMER
SAVE_ALL_ASYNC __LC_IO_OLD_PSW,__LC_SAVE_AREA+16
@@ -703,8 +697,7 @@ io_notify_resume:
* External interrupt handler routine
*/
- .globl ext_int_handler
-ext_int_handler:
+ENTRY(ext_int_handler)
stck __LC_INT_CLOCK
stpt __LC_ASYNC_ENTER_TIMER
SAVE_ALL_ASYNC __LC_EXT_OLD_PSW,__LC_SAVE_AREA+16
@@ -731,8 +724,7 @@ __critical_end:
* Machine check handler routines
*/
- .globl mcck_int_handler
-mcck_int_handler:
+ENTRY(mcck_int_handler)
stck __LC_MCCK_CLOCK
spt __LC_CPU_TIMER_SAVE_AREA # revalidate cpu timer
lm %r0,%r15,__LC_GPREGS_SAVE_AREA # revalidate gprs
@@ -818,8 +810,7 @@ mcck_return:
*/
#ifdef CONFIG_SMP
__CPUINIT
- .globl restart_int_handler
-restart_int_handler:
+ENTRY(restart_int_handler)
basr %r1,0
restart_base:
spt restart_vtime-restart_base(%r1)
@@ -848,8 +839,7 @@ restart_vtime:
/*
* If we do not run with SMP enabled, let the new CPU crash ...
*/
- .globl restart_int_handler
-restart_int_handler:
+ENTRY(restart_int_handler)
basr %r1,0
restart_base:
lpsw restart_crash-restart_base(%r1)
diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h
index 17a6f83a2d67..66729eb7bbc5 100644
--- a/arch/s390/kernel/entry.h
+++ b/arch/s390/kernel/entry.h
@@ -5,10 +5,9 @@
#include <linux/signal.h>
#include <asm/ptrace.h>
-typedef void pgm_check_handler_t(struct pt_regs *, long, unsigned long);
-extern pgm_check_handler_t *pgm_check_table[128];
-pgm_check_handler_t do_protection_exception;
-pgm_check_handler_t do_dat_exception;
+void do_protection_exception(struct pt_regs *, long, unsigned long);
+void do_dat_exception(struct pt_regs *, long, unsigned long);
+void do_asce_exception(struct pt_regs *, long, unsigned long);
extern int sysctl_userprocess_debug;
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index d61967e2eab0..7a0fd426ca92 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -9,8 +9,8 @@
* Heiko Carstens <heiko.carstens@de.ibm.com>
*/
-#include <linux/linkage.h>
#include <linux/init.h>
+#include <linux/linkage.h>
#include <asm/cache.h>
#include <asm/errno.h>
#include <asm/ptrace.h>
@@ -56,15 +56,28 @@ _TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \
_TIF_MCCK_PENDING)
_TIF_SYSCALL = (_TIF_SYSCALL_TRACE>>8 | _TIF_SYSCALL_AUDIT>>8 | \
_TIF_SECCOMP>>8 | _TIF_SYSCALL_TRACEPOINT>>8)
+_TIF_EXIT_SIE = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_MCCK_PENDING)
#define BASED(name) name-system_call(%r13)
+ .macro SPP newpp
+#if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE)
+ tm __LC_MACHINE_FLAGS+6,0x20 # MACHINE_FLAG_SPP
+ jz .+8
+ .insn s,0xb2800000,\newpp
+#endif
+ .endm
+
.macro HANDLE_SIE_INTERCEPT
#if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE)
- lg %r3,__LC_SIE_HOOK
- ltgr %r3,%r3
+ tm __TI_flags+6(%r12),_TIF_SIE>>8
jz 0f
- basr %r14,%r3
+ SPP __LC_CMF_HPP # set host id
+ clc SP_PSW+8(8,%r15),BASED(.Lsie_loop)
+ jl 0f
+ clc SP_PSW+8(8,%r15),BASED(.Lsie_done)
+ jhe 0f
+ mvc SP_PSW+8(8,%r15),BASED(.Lsie_loop)
0:
#endif
.endm
@@ -206,8 +219,7 @@ _TIF_SYSCALL = (_TIF_SYSCALL_TRACE>>8 | _TIF_SYSCALL_AUDIT>>8 | \
* Returns:
* gpr2 = prev
*/
- .globl __switch_to
-__switch_to:
+ENTRY(__switch_to)
lg %r4,__THREAD_info(%r2) # get thread_info of prev
lg %r5,__THREAD_info(%r3) # get thread_info of next
tm __TI_flags+7(%r4),_TIF_MCCK_PENDING # machine check pending?
@@ -232,8 +244,7 @@ __critical_start:
* are executed with interrupts enabled.
*/
- .globl system_call
-system_call:
+ENTRY(system_call)
stpt __LC_SYNC_ENTER_TIMER
sysc_saveall:
SAVE_ALL_SVC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
@@ -395,8 +406,7 @@ sysc_tracenogo:
#
# a new process exits the kernel with ret_from_fork
#
- .globl ret_from_fork
-ret_from_fork:
+ENTRY(ret_from_fork)
lg %r13,__LC_SVC_NEW_PSW+8
lg %r12,__LC_THREAD_INFO # load pointer to thread_info struct
tm SP_PSW+1(%r15),0x01 # forking a kernel thread ?
@@ -411,8 +421,7 @@ ret_from_fork:
# kernel_execve function needs to deal with pt_regs that is not
# at the usual place
#
- .globl kernel_execve
-kernel_execve:
+ENTRY(kernel_execve)
stmg %r12,%r15,96(%r15)
lgr %r14,%r15
aghi %r15,-SP_SIZE
@@ -442,8 +451,7 @@ kernel_execve:
* Program check handler routine
*/
- .globl pgm_check_handler
-pgm_check_handler:
+ENTRY(pgm_check_handler)
/*
* First we need to check for a special case:
* Single stepping an instruction that disables the PER event mask will
@@ -465,6 +473,7 @@ pgm_check_handler:
xc SP_ILC(4,%r15),SP_ILC(%r15)
mvc SP_PSW(16,%r15),__LC_PGM_OLD_PSW
lg %r12,__LC_THREAD_INFO # load pointer to thread_info struct
+ HANDLE_SIE_INTERCEPT
tm SP_PSW+1(%r15),0x01 # interrupting from user ?
jz pgm_no_vtime
UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
@@ -472,7 +481,6 @@ pgm_check_handler:
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
LAST_BREAK
pgm_no_vtime:
- HANDLE_SIE_INTERCEPT
stg %r11,SP_ARGS(%r15)
lgf %r3,__LC_PGM_ILC # load program interruption code
lg %r4,__LC_TRANS_EXC_CODE
@@ -507,6 +515,7 @@ pgm_per_std:
CREATE_STACK_FRAME __LC_SAVE_AREA
mvc SP_PSW(16,%r15),__LC_PGM_OLD_PSW
lg %r12,__LC_THREAD_INFO # load pointer to thread_info struct
+ HANDLE_SIE_INTERCEPT
tm SP_PSW+1(%r15),0x01 # interrupting from user ?
jz pgm_no_vtime2
UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
@@ -514,7 +523,6 @@ pgm_per_std:
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
LAST_BREAK
pgm_no_vtime2:
- HANDLE_SIE_INTERCEPT
lg %r1,__TI_task(%r12)
tm SP_PSW+1(%r15),0x01 # kernel per event ?
jz kernel_per
@@ -571,14 +579,14 @@ kernel_per:
/*
* IO interrupt handler routine
*/
- .globl io_int_handler
-io_int_handler:
+ENTRY(io_int_handler)
stck __LC_INT_CLOCK
stpt __LC_ASYNC_ENTER_TIMER
SAVE_ALL_ASYNC __LC_IO_OLD_PSW,__LC_SAVE_AREA+40
CREATE_STACK_FRAME __LC_SAVE_AREA+40
mvc SP_PSW(16,%r15),0(%r12) # move user PSW to stack
lg %r12,__LC_THREAD_INFO # load pointer to thread_info struct
+ HANDLE_SIE_INTERCEPT
tm SP_PSW+1(%r15),0x01 # interrupting from user ?
jz io_no_vtime
UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
@@ -586,7 +594,6 @@ io_int_handler:
mvc __LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
LAST_BREAK
io_no_vtime:
- HANDLE_SIE_INTERCEPT
TRACE_IRQS_OFF
la %r2,SP_PTREGS(%r15) # address of register-save area
brasl %r14,do_IRQ # call standard irq handler
@@ -706,14 +713,14 @@ io_notify_resume:
/*
* External interrupt handler routine
*/
- .globl ext_int_handler
-ext_int_handler:
+ENTRY(ext_int_handler)
stck __LC_INT_CLOCK
stpt __LC_ASYNC_ENTER_TIMER
SAVE_ALL_ASYNC __LC_EXT_OLD_PSW,__LC_SAVE_AREA+40
CREATE_STACK_FRAME __LC_SAVE_AREA+40
mvc SP_PSW(16,%r15),0(%r12) # move user PSW to stack
lg %r12,__LC_THREAD_INFO # load pointer to thread_info struct
+ HANDLE_SIE_INTERCEPT
tm SP_PSW+1(%r15),0x01 # interrupting from user ?
jz ext_no_vtime
UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
@@ -721,7 +728,6 @@ ext_int_handler:
mvc __LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
LAST_BREAK
ext_no_vtime:
- HANDLE_SIE_INTERCEPT
TRACE_IRQS_OFF
lghi %r1,4096
la %r2,SP_PTREGS(%r15) # address of register-save area
@@ -736,8 +742,7 @@ __critical_end:
/*
* Machine check handler routines
*/
- .globl mcck_int_handler
-mcck_int_handler:
+ENTRY(mcck_int_handler)
stck __LC_MCCK_CLOCK
la %r1,4095 # revalidate r1
spt __LC_CPU_TIMER_SAVE_AREA-4095(%r1) # revalidate cpu timer
@@ -785,6 +790,7 @@ mcck_int_main:
lg %r12,__LC_THREAD_INFO # load pointer to thread_info struct
tm __LC_MCCK_CODE+2,0x08 # mwp of old psw valid?
jno mcck_no_vtime # no -> no timer update
+ HANDLE_SIE_INTERCEPT
tm SP_PSW+1(%r15),0x01 # interrupting from user ?
jz mcck_no_vtime
UPDATE_VTIME __LC_EXIT_TIMER,__LC_MCCK_ENTER_TIMER,__LC_USER_TIMER
@@ -804,7 +810,6 @@ mcck_no_vtime:
stosm __SF_EMPTY(%r15),0x04 # turn dat on
tm __TI_flags+7(%r12),_TIF_MCCK_PENDING
jno mcck_return
- HANDLE_SIE_INTERCEPT
TRACE_IRQS_OFF
brasl %r14,s390_handle_mcck
TRACE_IRQS_ON
@@ -823,8 +828,7 @@ mcck_done:
*/
#ifdef CONFIG_SMP
__CPUINIT
- .globl restart_int_handler
-restart_int_handler:
+ENTRY(restart_int_handler)
basr %r1,0
restart_base:
spt restart_vtime-restart_base(%r1)
@@ -851,8 +855,7 @@ restart_vtime:
/*
* If we do not run with SMP enabled, let the new CPU crash ...
*/
- .globl restart_int_handler
-restart_int_handler:
+ENTRY(restart_int_handler)
basr %r1,0
restart_base:
lpswe restart_crash-restart_base(%r1)
@@ -1036,6 +1039,56 @@ cleanup_io_restore_insn:
.Lcritical_end:
.quad __critical_end
+#if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE)
+/*
+ * sie64a calling convention:
+ * %r2 pointer to sie control block
+ * %r3 guest register save area
+ */
+ENTRY(sie64a)
+ stmg %r6,%r14,__SF_GPRS(%r15) # save kernel registers
+ stg %r2,__SF_EMPTY(%r15) # save control block pointer
+ stg %r3,__SF_EMPTY+8(%r15) # save guest register save area
+ lmg %r0,%r13,0(%r3) # load guest gprs 0-13
+ lg %r14,__LC_THREAD_INFO # pointer thread_info struct
+ oi __TI_flags+6(%r14),_TIF_SIE>>8
+sie_loop:
+ lg %r14,__LC_THREAD_INFO # pointer thread_info struct
+ tm __TI_flags+7(%r14),_TIF_EXIT_SIE
+ jnz sie_exit
+ lg %r14,__SF_EMPTY(%r15) # get control block pointer
+ SPP __SF_EMPTY(%r15) # set guest id
+ sie 0(%r14)
+sie_done:
+ SPP __LC_CMF_HPP # set host id
+ lg %r14,__LC_THREAD_INFO # pointer thread_info struct
+sie_exit:
+ ni __TI_flags+6(%r14),255-(_TIF_SIE>>8)
+ lg %r14,__SF_EMPTY+8(%r15) # load guest register save area
+ stmg %r0,%r13,0(%r14) # save guest gprs 0-13
+ lmg %r6,%r14,__SF_GPRS(%r15) # restore kernel registers
+ lghi %r2,0
+ br %r14
+sie_fault:
+ lg %r14,__LC_THREAD_INFO # pointer thread_info struct
+ ni __TI_flags+6(%r14),255-(_TIF_SIE>>8)
+ lg %r14,__SF_EMPTY+8(%r15) # load guest register save area
+ stmg %r0,%r13,0(%r14) # save guest gprs 0-13
+ lmg %r6,%r14,__SF_GPRS(%r15) # restore kernel registers
+ lghi %r2,-EFAULT
+ br %r14
+
+ .align 8
+.Lsie_loop:
+ .quad sie_loop
+.Lsie_done:
+ .quad sie_done
+
+ .section __ex_table,"a"
+ .quad sie_loop,sie_fault
+ .previous
+#endif
+
.section .rodata, "a"
#define SYSCALL(esa,esame,emu) .long esame
.globl sys_call_table
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index fb317bf2c378..2d781bab37bb 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -22,6 +22,7 @@
*/
#include <linux/init.h>
+#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#include <asm/thread_info.h>
#include <asm/page.h>
@@ -383,8 +384,7 @@ iplstart:
# doesn't need a builtin ipl record.
#
.org 0x800
- .globl start
-start:
+ENTRY(start)
stm %r0,%r15,0x07b0 # store registers
basr %r12,%r0
.base:
@@ -448,8 +448,7 @@ start:
# or linload or SALIPL
#
.org 0x10000
- .globl startup
-startup:
+ENTRY(startup)
basr %r13,0 # get base
.LPG0:
xc 0x200(256),0x200 # partially clear lowcore
diff --git a/arch/s390/kernel/head31.S b/arch/s390/kernel/head31.S
index b8f8dc126102..f21954b44dc1 100644
--- a/arch/s390/kernel/head31.S
+++ b/arch/s390/kernel/head31.S
@@ -11,13 +11,13 @@
*/
#include <linux/init.h>
+#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#include <asm/thread_info.h>
#include <asm/page.h>
__HEAD
- .globl startup_continue
-startup_continue:
+ENTRY(startup_continue)
basr %r13,0 # get base
.LPG1:
@@ -45,7 +45,7 @@ startup_continue:
# virtual and never return ...
.align 8
.Lentry:.long 0x00080000,0x80000000 + _stext
-.Lctl: .long 0x04b50002 # cr0: various things
+.Lctl: .long 0x04b50000 # cr0: various things
.long 0 # cr1: primary space segment table
.long .Lduct # cr2: dispatchable unit control table
.long 0 # cr3: instruction authorization
@@ -78,8 +78,7 @@ startup_continue:
.Lbase_cc:
.long sched_clock_base_cc
- .globl _ehead
-_ehead:
+ENTRY(_ehead)
#ifdef CONFIG_SHARED_KERNEL
.org 0x100000 - 0x11000 # head.o ends at 0x11000
@@ -88,8 +87,8 @@ _ehead:
#
# startup-code, running in absolute addressing mode
#
- .globl _stext
-_stext: basr %r13,0 # get base
+ENTRY(_stext)
+ basr %r13,0 # get base
.LPG3:
# check control registers
stctl %c0,%c15,0(%r15)
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index cdef68717416..ae5d492b069e 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -11,13 +11,13 @@
*/
#include <linux/init.h>
+#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#include <asm/thread_info.h>
#include <asm/page.h>
__HEAD
- .globl startup_continue
-startup_continue:
+ENTRY(startup_continue)
larl %r1,sched_clock_base_cc
mvc 0(8,%r1),__LC_LAST_UPDATE_CLOCK
larl %r13,.LPG1 # get base
@@ -46,7 +46,7 @@ startup_continue:
.align 16
.LPG1:
.Lentry:.quad 0x0000000180000000,_stext
-.Lctl: .quad 0x04350002 # cr0: various things
+.Lctl: .quad 0x04040000 # cr0: AFP registers & secondary space
.quad 0 # cr1: primary space segment table
.quad .Lduct # cr2: dispatchable unit control table
.quad 0 # cr3: instruction authorization
@@ -76,8 +76,7 @@ startup_continue:
.long 0x80000000,0,0,0 # invalid access-list entries
.endr
- .globl _ehead
-_ehead:
+ENTRY(_ehead)
#ifdef CONFIG_SHARED_KERNEL
.org 0x100000 - 0x11000 # head.o ends at 0x11000
@@ -86,8 +85,8 @@ _ehead:
#
# startup-code, running in absolute addressing mode
#
- .globl _stext
-_stext: basr %r13,0 # get base
+ENTRY(_stext)
+ basr %r13,0 # get base
.LPG3:
# check control registers
stctg %c0,%c15,0(%r15)
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index e3264f6a9720..1f4050d45f78 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -88,15 +88,6 @@ int show_interrupts(struct seq_file *p, void *v)
}
/*
- * For compatibilty only. S/390 specific setup of interrupts et al. is done
- * much later in init_channel_subsystem().
- */
-void __init init_IRQ(void)
-{
- /* nothing... */
-}
-
-/*
* Switch to the asynchronous interrupt stack for softirq execution.
*/
asmlinkage void do_softirq(void)
@@ -144,28 +135,45 @@ void init_irq_proc(void)
#endif
/*
- * ext_int_hash[index] is the start of the list for all external interrupts
- * that hash to this index. With the current set of external interrupts
- * (0x1202 external call, 0x1004 cpu timer, 0x2401 hwc console, 0x4000
- * iucv and 0x2603 pfault) this is always the first element.
+ * ext_int_hash[index] is the list head for all external interrupts that hash
+ * to this index.
*/
+static struct list_head ext_int_hash[256];
struct ext_int_info {
- struct ext_int_info *next;
ext_int_handler_t handler;
u16 code;
+ struct list_head entry;
+ struct rcu_head rcu;
};
-static struct ext_int_info *ext_int_hash[256];
+/* ext_int_hash_lock protects the handler lists for external interrupts */
+DEFINE_SPINLOCK(ext_int_hash_lock);
+
+static void __init init_external_interrupts(void)
+{
+ int idx;
+
+ for (idx = 0; idx < ARRAY_SIZE(ext_int_hash); idx++)
+ INIT_LIST_HEAD(&ext_int_hash[idx]);
+}
static inline int ext_hash(u16 code)
{
return (code + (code >> 9)) & 0xff;
}
+static void ext_int_hash_update(struct rcu_head *head)
+{
+ struct ext_int_info *p = container_of(head, struct ext_int_info, rcu);
+
+ kfree(p);
+}
+
int register_external_interrupt(u16 code, ext_int_handler_t handler)
{
struct ext_int_info *p;
+ unsigned long flags;
int index;
p = kmalloc(sizeof(*p), GFP_ATOMIC);
@@ -174,33 +182,27 @@ int register_external_interrupt(u16 code, ext_int_handler_t handler)
p->code = code;
p->handler = handler;
index = ext_hash(code);
- p->next = ext_int_hash[index];
- ext_int_hash[index] = p;
+
+ spin_lock_irqsave(&ext_int_hash_lock, flags);
+ list_add_rcu(&p->entry, &ext_int_hash[index]);
+ spin_unlock_irqrestore(&ext_int_hash_lock, flags);
return 0;
}
EXPORT_SYMBOL(register_external_interrupt);
int unregister_external_interrupt(u16 code, ext_int_handler_t handler)
{
- struct ext_int_info *p, *q;
- int index;
+ struct ext_int_info *p;
+ unsigned long flags;
+ int index = ext_hash(code);
- index = ext_hash(code);
- q = NULL;
- p = ext_int_hash[index];
- while (p) {
- if (p->code == code && p->handler == handler)
- break;
- q = p;
- p = p->next;
- }
- if (!p)
- return -ENOENT;
- if (q)
- q->next = p->next;
- else
- ext_int_hash[index] = p->next;
- kfree(p);
+ spin_lock_irqsave(&ext_int_hash_lock, flags);
+ list_for_each_entry_rcu(p, &ext_int_hash[index], entry)
+ if (p->code == code && p->handler == handler) {
+ list_del_rcu(&p->entry);
+ call_rcu(&p->rcu, ext_int_hash_update);
+ }
+ spin_unlock_irqrestore(&ext_int_hash_lock, flags);
return 0;
}
EXPORT_SYMBOL(unregister_external_interrupt);
@@ -224,15 +226,22 @@ void __irq_entry do_extint(struct pt_regs *regs, unsigned int ext_int_code,
kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++;
if (code != 0x1004)
__get_cpu_var(s390_idle).nohz_delay = 1;
+
index = ext_hash(code);
- for (p = ext_int_hash[index]; p; p = p->next) {
+ rcu_read_lock();
+ list_for_each_entry_rcu(p, &ext_int_hash[index], entry)
if (likely(p->code == code))
p->handler(ext_int_code, param32, param64);
- }
+ rcu_read_unlock();
irq_exit();
set_irq_regs(old_regs);
}
+void __init init_IRQ(void)
+{
+ init_external_interrupts();
+}
+
static DEFINE_SPINLOCK(sc_irq_lock);
static int sc_irq_refcount;
diff --git a/arch/s390/kernel/mcount.S b/arch/s390/kernel/mcount.S
index 1e6a55795628..7e2c38ba1373 100644
--- a/arch/s390/kernel/mcount.S
+++ b/arch/s390/kernel/mcount.S
@@ -5,21 +5,19 @@
*
*/
+#include <linux/linkage.h>
#include <asm/asm-offsets.h>
.section .kprobes.text, "ax"
- .globl ftrace_stub
-ftrace_stub:
+ENTRY(ftrace_stub)
br %r14
- .globl _mcount
-_mcount:
+ENTRY(_mcount)
#ifdef CONFIG_DYNAMIC_FTRACE
br %r14
- .globl ftrace_caller
-ftrace_caller:
+ENTRY(ftrace_caller)
#endif
stm %r2,%r5,16(%r15)
bras %r1,2f
@@ -41,8 +39,7 @@ ftrace_caller:
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
l %r2,100(%r15)
l %r3,152(%r15)
- .globl ftrace_graph_caller
-ftrace_graph_caller:
+ENTRY(ftrace_graph_caller)
# The bras instruction gets runtime patched to call prepare_ftrace_return.
# See ftrace_enable_ftrace_graph_caller. The patched instruction is:
# bras %r14,prepare_ftrace_return
@@ -56,8 +53,7 @@ ftrace_graph_caller:
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
- .globl return_to_handler
-return_to_handler:
+ENTRY(return_to_handler)
stm %r2,%r5,16(%r15)
st %r14,56(%r15)
lr %r0,%r15
diff --git a/arch/s390/kernel/mcount64.S b/arch/s390/kernel/mcount64.S
index e73667286ac0..f70cadec68fc 100644
--- a/arch/s390/kernel/mcount64.S
+++ b/arch/s390/kernel/mcount64.S
@@ -5,21 +5,19 @@
*
*/
+#include <linux/linkage.h>
#include <asm/asm-offsets.h>
.section .kprobes.text, "ax"
- .globl ftrace_stub
-ftrace_stub:
+ENTRY(ftrace_stub)
br %r14
- .globl _mcount
-_mcount:
+ENTRY(_mcount)
#ifdef CONFIG_DYNAMIC_FTRACE
br %r14
- .globl ftrace_caller
-ftrace_caller:
+ENTRY(ftrace_caller)
#endif
larl %r1,function_trace_stop
icm %r1,0xf,0(%r1)
@@ -37,8 +35,7 @@ ftrace_caller:
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
lg %r2,168(%r15)
lg %r3,272(%r15)
- .globl ftrace_graph_caller
-ftrace_graph_caller:
+ENTRY(ftrace_graph_caller)
# The bras instruction gets runtime patched to call prepare_ftrace_return.
# See ftrace_enable_ftrace_graph_caller. The patched instruction is:
# bras %r14,prepare_ftrace_return
@@ -52,8 +49,7 @@ ftrace_graph_caller:
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
- .globl return_to_handler
-return_to_handler:
+ENTRY(return_to_handler)
stmg %r2,%r5,32(%r15)
lgr %r1,%r15
aghi %r15,-160
diff --git a/arch/s390/kernel/reipl.S b/arch/s390/kernel/reipl.S
index cb899d9f8505..303d961c3bb5 100644
--- a/arch/s390/kernel/reipl.S
+++ b/arch/s390/kernel/reipl.S
@@ -6,14 +6,15 @@
* Author(s): Holger Smolinski (Holger.Smolinski@de.ibm.com)
*/
+#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#
# do_reipl_asm
# Parameter: r2 = schid of reipl device
#
- .globl do_reipl_asm
-do_reipl_asm: basr %r13,0
+ENTRY(do_reipl_asm)
+ basr %r13,0
.Lpg0: lpsw .Lnewpsw-.Lpg0(%r13)
.Lpg1: # do store status of all registers
diff --git a/arch/s390/kernel/reipl64.S b/arch/s390/kernel/reipl64.S
index 9eabbc90795d..78eb7cfbd3d1 100644
--- a/arch/s390/kernel/reipl64.S
+++ b/arch/s390/kernel/reipl64.S
@@ -4,6 +4,7 @@
* Denis Joseph Barrow,
*/
+#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#
@@ -11,8 +12,8 @@
# Parameter: r2 = schid of reipl device
#
- .globl do_reipl_asm
-do_reipl_asm: basr %r13,0
+ENTRY(do_reipl_asm)
+ basr %r13,0
.Lpg0: lpswe .Lnewpsw-.Lpg0(%r13)
.Lpg1: # do store status of all registers
diff --git a/arch/s390/kernel/relocate_kernel.S b/arch/s390/kernel/relocate_kernel.S
index 3b456b80bcee..c91d70aede91 100644
--- a/arch/s390/kernel/relocate_kernel.S
+++ b/arch/s390/kernel/relocate_kernel.S
@@ -8,6 +8,8 @@
*
*/
+#include <linux/linkage.h>
+
/*
* moves the new kernel to its destination...
* %r2 = pointer to first kimage_entry_t
@@ -22,8 +24,7 @@
*/
.text
- .globl relocate_kernel
- relocate_kernel:
+ENTRY(relocate_kernel)
basr %r13,0 # base address
.base:
stnsm sys_msk-.base(%r13),0xfb # disable DAT
@@ -112,6 +113,7 @@
.byte 0
.align 8
relocate_kernel_end:
+ .align 8
.globl relocate_kernel_len
relocate_kernel_len:
.quad relocate_kernel_end - relocate_kernel
diff --git a/arch/s390/kernel/relocate_kernel64.S b/arch/s390/kernel/relocate_kernel64.S
index 1f9ea2067b59..7c3ce589a7f0 100644
--- a/arch/s390/kernel/relocate_kernel64.S
+++ b/arch/s390/kernel/relocate_kernel64.S
@@ -8,6 +8,8 @@
*
*/
+#include <linux/linkage.h>
+
/*
* moves the new kernel to its destination...
* %r2 = pointer to first kimage_entry_t
@@ -23,8 +25,7 @@
*/
.text
- .globl relocate_kernel
- relocate_kernel:
+ENTRY(relocate_kernel)
basr %r13,0 # base address
.base:
stnsm sys_msk-.base(%r13),0xfb # disable DAT
@@ -115,6 +116,7 @@
.byte 0
.align 8
relocate_kernel_end:
+ .align 8
.globl relocate_kernel_len
relocate_kernel_len:
.quad relocate_kernel_end - relocate_kernel
diff --git a/arch/s390/kernel/s390_ksyms.c b/arch/s390/kernel/s390_ksyms.c
index 656fcbb9bd83..57b536649b00 100644
--- a/arch/s390/kernel/s390_ksyms.c
+++ b/arch/s390/kernel/s390_ksyms.c
@@ -1,6 +1,10 @@
#include <linux/module.h>
+#include <linux/kvm_host.h>
#include <asm/ftrace.h>
#ifdef CONFIG_FUNCTION_TRACER
EXPORT_SYMBOL(_mcount);
#endif
+#if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE)
+EXPORT_SYMBOL(sie64a);
+#endif
diff --git a/arch/s390/kernel/sclp.S b/arch/s390/kernel/sclp.S
index 2e82fdd89320..95792d846bb6 100644
--- a/arch/s390/kernel/sclp.S
+++ b/arch/s390/kernel/sclp.S
@@ -8,6 +8,8 @@
*
*/
+#include <linux/linkage.h>
+
LC_EXT_NEW_PSW = 0x58 # addr of ext int handler
LC_EXT_NEW_PSW_64 = 0x1b0 # addr of ext int handler 64 bit
LC_EXT_INT_PARAM = 0x80 # addr of ext int parameter
@@ -260,8 +262,7 @@ _sclp_print:
# R2 = 0 on success, 1 on failure
#
- .globl _sclp_print_early
-_sclp_print_early:
+ENTRY(_sclp_print_early)
stm %r6,%r15,24(%r15) # save registers
ahi %r15,-96 # create stack frame
#ifdef CONFIG_64BIT
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 1d55c95f617c..a6d85c0a7f20 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -654,7 +654,8 @@ int __cpu_disable(void)
/* disable all external interrupts */
cr_parms.orvals[0] = 0;
cr_parms.andvals[0] = ~(1 << 15 | 1 << 14 | 1 << 13 | 1 << 11 |
- 1 << 10 | 1 << 9 | 1 << 6 | 1 << 4);
+ 1 << 10 | 1 << 9 | 1 << 6 | 1 << 5 |
+ 1 << 4);
/* disable all I/O interrupts */
cr_parms.orvals[6] = 0;
cr_parms.andvals[6] = ~(1 << 31 | 1 << 30 | 1 << 29 | 1 << 28 |
diff --git a/arch/s390/kernel/switch_cpu.S b/arch/s390/kernel/switch_cpu.S
index 20530dd2eab1..bfe070bc7659 100644
--- a/arch/s390/kernel/switch_cpu.S
+++ b/arch/s390/kernel/switch_cpu.S
@@ -5,6 +5,7 @@
*
*/
+#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#include <asm/ptrace.h>
@@ -16,9 +17,7 @@
# %r6 - destination cpu
.section .text
- .align 4
- .globl smp_switch_to_cpu
-smp_switch_to_cpu:
+ENTRY(smp_switch_to_cpu)
stm %r6,%r15,__SF_GPRS(%r15)
lr %r1,%r15
ahi %r15,-STACK_FRAME_OVERHEAD
@@ -33,8 +32,7 @@ smp_switch_to_cpu:
brc 2,2b /* busy, try again */
3: j 3b
- .globl smp_restart_cpu
-smp_restart_cpu:
+ENTRY(smp_restart_cpu)
basr %r13,0
0: la %r1,.gprregs_addr-0b(%r13)
l %r1,0(%r1)
diff --git a/arch/s390/kernel/switch_cpu64.S b/arch/s390/kernel/switch_cpu64.S
index 5be3f43898f9..fcc42d799e41 100644
--- a/arch/s390/kernel/switch_cpu64.S
+++ b/arch/s390/kernel/switch_cpu64.S
@@ -5,6 +5,7 @@
*
*/
+#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#include <asm/ptrace.h>
@@ -16,9 +17,7 @@
# %r6 - destination cpu
.section .text
- .align 4
- .globl smp_switch_to_cpu
-smp_switch_to_cpu:
+ENTRY(smp_switch_to_cpu)
stmg %r6,%r15,__SF_GPRS(%r15)
lgr %r1,%r15
aghi %r15,-STACK_FRAME_OVERHEAD
@@ -31,8 +30,7 @@ smp_switch_to_cpu:
brc 2,2b /* busy, try again */
3: j 3b
- .globl smp_restart_cpu
-smp_restart_cpu:
+ENTRY(smp_restart_cpu)
larl %r1,.gprregs
lmg %r0,%r15,0(%r1)
1: sigp %r0,%r5,__SIGP_SENSE /* Wait for calling CPU */
diff --git a/arch/s390/kernel/swsusp_asm64.S b/arch/s390/kernel/swsusp_asm64.S
index 1f066e46e83e..51bcdb50a230 100644
--- a/arch/s390/kernel/swsusp_asm64.S
+++ b/arch/s390/kernel/swsusp_asm64.S
@@ -7,6 +7,7 @@
* Michael Holzheu <holzheu@linux.vnet.ibm.com>
*/
+#include <linux/linkage.h>
#include <asm/page.h>
#include <asm/ptrace.h>
#include <asm/thread_info.h>
@@ -22,9 +23,7 @@
* This function runs with disabled interrupts.
*/
.section .text
- .align 4
- .globl swsusp_arch_suspend
-swsusp_arch_suspend:
+ENTRY(swsusp_arch_suspend)
stmg %r6,%r15,__SF_GPRS(%r15)
lgr %r1,%r15
aghi %r15,-STACK_FRAME_OVERHEAD
@@ -112,8 +111,7 @@ swsusp_arch_suspend:
* Then we return to the function that called swsusp_arch_suspend().
* swsusp_arch_resume() runs with disabled interrupts.
*/
- .globl swsusp_arch_resume
-swsusp_arch_resume:
+ENTRY(swsusp_arch_resume)
stmg %r6,%r15,__SF_GPRS(%r15)
lgr %r1,%r15
aghi %r15,-STACK_FRAME_OVERHEAD
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index a63d34c3611e..e9372c77cced 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -18,7 +18,7 @@
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
-#include <linux/tracehook.h>
+#include <linux/ptrace.h>
#include <linux/timer.h>
#include <linux/mm.h>
#include <linux/smp.h>
@@ -43,14 +43,10 @@
#include <asm/debug.h>
#include "entry.h"
-pgm_check_handler_t *pgm_check_table[128];
+void (*pgm_check_table[128])(struct pt_regs *, long, unsigned long);
int show_unhandled_signals;
-extern pgm_check_handler_t do_protection_exception;
-extern pgm_check_handler_t do_dat_exception;
-extern pgm_check_handler_t do_asce_exception;
-
#define stack_pointer ({ void **sp; asm("la %0,0(15)" : "=&d" (sp)); sp; })
#ifndef CONFIG_64BIT
@@ -329,10 +325,17 @@ static inline void __user *get_psw_address(struct pt_regs *regs,
void __kprobes do_per_trap(struct pt_regs *regs)
{
+ siginfo_t info;
+
if (notify_die(DIE_SSTEP, "sstep", regs, 0, 0, SIGTRAP) == NOTIFY_STOP)
return;
- if (current->ptrace)
- force_sig(SIGTRAP, current);
+ if (!current->ptrace)
+ return;
+ info.si_signo = SIGTRAP;
+ info.si_errno = 0;
+ info.si_code = TRAP_HWBKPT;
+ info.si_addr = (void *) current->thread.per_event.address;
+ force_sig_info(SIGTRAP, &info, current);
}
static void default_trap_handler(struct pt_regs *regs, long pgm_int_code,
@@ -425,9 +428,13 @@ static void __kprobes illegal_op(struct pt_regs *regs, long pgm_int_code,
if (get_user(*((__u16 *) opcode), (__u16 __user *) location))
return;
if (*((__u16 *) opcode) == S390_BREAKPOINT_U16) {
- if (current->ptrace)
- force_sig(SIGTRAP, current);
- else
+ if (current->ptrace) {
+ info.si_signo = SIGTRAP;
+ info.si_errno = 0;
+ info.si_code = TRAP_BRKPT;
+ info.si_addr = location;
+ force_sig_info(SIGTRAP, &info, current);
+ } else
signal = SIGILL;
#ifdef CONFIG_MATHEMU
} else if (opcode[0] == 0xb3) {
@@ -489,9 +496,8 @@ static void __kprobes illegal_op(struct pt_regs *regs, long pgm_int_code,
#ifdef CONFIG_MATHEMU
-asmlinkage void specification_exception(struct pt_regs *regs,
- long pgm_int_code,
- unsigned long trans_exc_code)
+void specification_exception(struct pt_regs *regs, long pgm_int_code,
+ unsigned long trans_exc_code)
{
__u8 opcode[6];
__u16 __user *location = NULL;
@@ -648,7 +654,7 @@ static void space_switch_exception(struct pt_regs *regs, long pgm_int_code,
do_trap(pgm_int_code, SIGILL, "space switch event", regs, &info);
}
-asmlinkage void __kprobes kernel_stack_overflow(struct pt_regs * regs)
+void __kprobes kernel_stack_overflow(struct pt_regs * regs)
{
bust_spinlocks(1);
printk("Kernel stack overflow.\n");
diff --git a/arch/s390/kvm/Makefile b/arch/s390/kvm/Makefile
index 860d26514c08..3975722bb19d 100644
--- a/arch/s390/kvm/Makefile
+++ b/arch/s390/kvm/Makefile
@@ -10,5 +10,5 @@ common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o)
ccflags-y := -Ivirt/kvm -Iarch/s390/kvm
-kvm-objs := $(common-objs) kvm-s390.o sie64a.o intercept.o interrupt.o priv.o sigp.o diag.o
+kvm-objs := $(common-objs) kvm-s390.o intercept.o interrupt.o priv.o sigp.o diag.o
obj-$(CONFIG_KVM) += kvm.o
diff --git a/arch/s390/kvm/gaccess.h b/arch/s390/kvm/gaccess.h
index 03c716a0f01f..c86f6ae43f76 100644
--- a/arch/s390/kvm/gaccess.h
+++ b/arch/s390/kvm/gaccess.h
@@ -1,5 +1,5 @@
/*
- * gaccess.h - access guest memory
+ * access.h - access guest memory
*
* Copyright IBM Corp. 2008,2009
*
@@ -22,20 +22,13 @@ static inline void __user *__guestaddr_to_user(struct kvm_vcpu *vcpu,
unsigned long guestaddr)
{
unsigned long prefix = vcpu->arch.sie_block->prefix;
- unsigned long origin = vcpu->arch.sie_block->gmsor;
- unsigned long memsize = kvm_s390_vcpu_get_memsize(vcpu);
if (guestaddr < 2 * PAGE_SIZE)
guestaddr += prefix;
else if ((guestaddr >= prefix) && (guestaddr < prefix + 2 * PAGE_SIZE))
guestaddr -= prefix;
- if (guestaddr > memsize)
- return (void __user __force *) ERR_PTR(-EFAULT);
-
- guestaddr += origin;
-
- return (void __user *) guestaddr;
+ return (void __user *) gmap_fault(guestaddr, vcpu->arch.gmap);
}
static inline int get_guest_u64(struct kvm_vcpu *vcpu, unsigned long guestaddr,
@@ -141,11 +134,11 @@ static inline int put_guest_u8(struct kvm_vcpu *vcpu, unsigned long guestaddr,
static inline int __copy_to_guest_slow(struct kvm_vcpu *vcpu,
unsigned long guestdest,
- const void *from, unsigned long n)
+ void *from, unsigned long n)
{
int rc;
unsigned long i;
- const u8 *data = from;
+ u8 *data = from;
for (i = 0; i < n; i++) {
rc = put_guest_u8(vcpu, guestdest++, *(data++));
@@ -155,12 +148,95 @@ static inline int __copy_to_guest_slow(struct kvm_vcpu *vcpu,
return 0;
}
+static inline int __copy_to_guest_fast(struct kvm_vcpu *vcpu,
+ unsigned long guestdest,
+ void *from, unsigned long n)
+{
+ int r;
+ void __user *uptr;
+ unsigned long size;
+
+ if (guestdest + n < guestdest)
+ return -EFAULT;
+
+ /* simple case: all within one segment table entry? */
+ if ((guestdest & PMD_MASK) == ((guestdest+n) & PMD_MASK)) {
+ uptr = (void __user *) gmap_fault(guestdest, vcpu->arch.gmap);
+
+ if (IS_ERR((void __force *) uptr))
+ return PTR_ERR((void __force *) uptr);
+
+ r = copy_to_user(uptr, from, n);
+
+ if (r)
+ r = -EFAULT;
+
+ goto out;
+ }
+
+ /* copy first segment */
+ uptr = (void __user *)gmap_fault(guestdest, vcpu->arch.gmap);
+
+ if (IS_ERR((void __force *) uptr))
+ return PTR_ERR((void __force *) uptr);
+
+ size = PMD_SIZE - (guestdest & ~PMD_MASK);
+
+ r = copy_to_user(uptr, from, size);
+
+ if (r) {
+ r = -EFAULT;
+ goto out;
+ }
+ from += size;
+ n -= size;
+ guestdest += size;
+
+ /* copy full segments */
+ while (n >= PMD_SIZE) {
+ uptr = (void __user *)gmap_fault(guestdest, vcpu->arch.gmap);
+
+ if (IS_ERR((void __force *) uptr))
+ return PTR_ERR((void __force *) uptr);
+
+ r = copy_to_user(uptr, from, PMD_SIZE);
+
+ if (r) {
+ r = -EFAULT;
+ goto out;
+ }
+ from += PMD_SIZE;
+ n -= PMD_SIZE;
+ guestdest += PMD_SIZE;
+ }
+
+ /* copy the tail segment */
+ if (n) {
+ uptr = (void __user *)gmap_fault(guestdest, vcpu->arch.gmap);
+
+ if (IS_ERR((void __force *) uptr))
+ return PTR_ERR((void __force *) uptr);
+
+ r = copy_to_user(uptr, from, n);
+
+ if (r)
+ r = -EFAULT;
+ }
+out:
+ return r;
+}
+
+static inline int copy_to_guest_absolute(struct kvm_vcpu *vcpu,
+ unsigned long guestdest,
+ void *from, unsigned long n)
+{
+ return __copy_to_guest_fast(vcpu, guestdest, from, n);
+}
+
static inline int copy_to_guest(struct kvm_vcpu *vcpu, unsigned long guestdest,
- const void *from, unsigned long n)
+ void *from, unsigned long n)
{
unsigned long prefix = vcpu->arch.sie_block->prefix;
- unsigned long origin = vcpu->arch.sie_block->gmsor;
- unsigned long memsize = kvm_s390_vcpu_get_memsize(vcpu);
if ((guestdest < 2 * PAGE_SIZE) && (guestdest + n > 2 * PAGE_SIZE))
goto slowpath;
@@ -177,15 +253,7 @@ static inline int copy_to_guest(struct kvm_vcpu *vcpu, unsigned long guestdest,
else if ((guestdest >= prefix) && (guestdest < prefix + 2 * PAGE_SIZE))
guestdest -= prefix;
- if (guestdest + n > memsize)
- return -EFAULT;
-
- if (guestdest + n < guestdest)
- return -EFAULT;
-
- guestdest += origin;
-
- return copy_to_user((void __user *) guestdest, from, n);
+ return __copy_to_guest_fast(vcpu, guestdest, from, n);
slowpath:
return __copy_to_guest_slow(vcpu, guestdest, from, n);
}
@@ -206,74 +274,113 @@ static inline int __copy_from_guest_slow(struct kvm_vcpu *vcpu, void *to,
return 0;
}
-static inline int copy_from_guest(struct kvm_vcpu *vcpu, void *to,
- unsigned long guestsrc, unsigned long n)
+static inline int __copy_from_guest_fast(struct kvm_vcpu *vcpu, void *to,
+ unsigned long guestsrc,
+ unsigned long n)
{
- unsigned long prefix = vcpu->arch.sie_block->prefix;
- unsigned long origin = vcpu->arch.sie_block->gmsor;
- unsigned long memsize = kvm_s390_vcpu_get_memsize(vcpu);
+ int r;
+ void __user *uptr;
+ unsigned long size;
- if ((guestsrc < 2 * PAGE_SIZE) && (guestsrc + n > 2 * PAGE_SIZE))
- goto slowpath;
+ if (guestsrc + n < guestsrc)
+ return -EFAULT;
- if ((guestsrc < prefix) && (guestsrc + n > prefix))
- goto slowpath;
+ /* simple case: all within one segment table entry? */
+ if ((guestsrc & PMD_MASK) == ((guestsrc+n) & PMD_MASK)) {
+ uptr = (void __user *) gmap_fault(guestsrc, vcpu->arch.gmap);
- if ((guestsrc < prefix + 2 * PAGE_SIZE)
- && (guestsrc + n > prefix + 2 * PAGE_SIZE))
- goto slowpath;
+ if (IS_ERR((void __force *) uptr))
+ return PTR_ERR((void __force *) uptr);
- if (guestsrc < 2 * PAGE_SIZE)
- guestsrc += prefix;
- else if ((guestsrc >= prefix) && (guestsrc < prefix + 2 * PAGE_SIZE))
- guestsrc -= prefix;
+ r = copy_from_user(to, uptr, n);
- if (guestsrc + n > memsize)
- return -EFAULT;
+ if (r)
+ r = -EFAULT;
- if (guestsrc + n < guestsrc)
- return -EFAULT;
+ goto out;
+ }
- guestsrc += origin;
+ /* copy first segment */
+ uptr = (void __user *)gmap_fault(guestsrc, vcpu->arch.gmap);
- return copy_from_user(to, (void __user *) guestsrc, n);
-slowpath:
- return __copy_from_guest_slow(vcpu, to, guestsrc, n);
-}
+ if (IS_ERR((void __force *) uptr))
+ return PTR_ERR((void __force *) uptr);
-static inline int copy_to_guest_absolute(struct kvm_vcpu *vcpu,
- unsigned long guestdest,
- const void *from, unsigned long n)
-{
- unsigned long origin = vcpu->arch.sie_block->gmsor;
- unsigned long memsize = kvm_s390_vcpu_get_memsize(vcpu);
+ size = PMD_SIZE - (guestsrc & ~PMD_MASK);
- if (guestdest + n > memsize)
- return -EFAULT;
+ r = copy_from_user(to, uptr, size);
- if (guestdest + n < guestdest)
- return -EFAULT;
+ if (r) {
+ r = -EFAULT;
+ goto out;
+ }
+ to += size;
+ n -= size;
+ guestsrc += size;
+
+ /* copy full segments */
+ while (n >= PMD_SIZE) {
+ uptr = (void __user *)gmap_fault(guestsrc, vcpu->arch.gmap);
+
+ if (IS_ERR((void __force *) uptr))
+ return PTR_ERR((void __force *) uptr);
+
+ r = copy_from_user(to, uptr, PMD_SIZE);
+
+ if (r) {
+ r = -EFAULT;
+ goto out;
+ }
+ to += PMD_SIZE;
+ n -= PMD_SIZE;
+ guestsrc += PMD_SIZE;
+ }
+
+ /* copy the tail segment */
+ if (n) {
+ uptr = (void __user *)gmap_fault(guestsrc, vcpu->arch.gmap);
- guestdest += origin;
+ if (IS_ERR((void __force *) uptr))
+ return PTR_ERR((void __force *) uptr);
- return copy_to_user((void __user *) guestdest, from, n);
+ r = copy_from_user(to, uptr, n);
+
+ if (r)
+ r = -EFAULT;
+ }
+out:
+ return r;
}
static inline int copy_from_guest_absolute(struct kvm_vcpu *vcpu, void *to,
unsigned long guestsrc,
unsigned long n)
{
- unsigned long origin = vcpu->arch.sie_block->gmsor;
- unsigned long memsize = kvm_s390_vcpu_get_memsize(vcpu);
+ return __copy_from_guest_fast(vcpu, to, guestsrc, n);
+}
- if (guestsrc + n > memsize)
- return -EFAULT;
+static inline int copy_from_guest(struct kvm_vcpu *vcpu, void *to,
+ unsigned long guestsrc, unsigned long n)
+{
+ unsigned long prefix = vcpu->arch.sie_block->prefix;
- if (guestsrc + n < guestsrc)
- return -EFAULT;
+ if ((guestsrc < 2 * PAGE_SIZE) && (guestsrc + n > 2 * PAGE_SIZE))
+ goto slowpath;
- guestsrc += origin;
+ if ((guestsrc < prefix) && (guestsrc + n > prefix))
+ goto slowpath;
+
+ if ((guestsrc < prefix + 2 * PAGE_SIZE)
+ && (guestsrc + n > prefix + 2 * PAGE_SIZE))
+ goto slowpath;
+
+ if (guestsrc < 2 * PAGE_SIZE)
+ guestsrc += prefix;
+ else if ((guestsrc >= prefix) && (guestsrc < prefix + 2 * PAGE_SIZE))
+ guestsrc -= prefix;
- return copy_from_user(to, (void __user *) guestsrc, n);
+ return __copy_from_guest_fast(vcpu, to, guestsrc, n);
+slowpath:
+ return __copy_from_guest_slow(vcpu, to, guestsrc, n);
}
#endif
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index f7b6df45d8be..c7c51898984e 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -105,6 +105,7 @@ static intercept_handler_t instruction_handlers[256] = {
[0xae] = kvm_s390_handle_sigp,
[0xb2] = kvm_s390_handle_b2,
[0xb7] = handle_lctl,
+ [0xe5] = kvm_s390_handle_e5,
[0xeb] = handle_lctlg,
};
@@ -159,22 +160,42 @@ static int handle_stop(struct kvm_vcpu *vcpu)
static int handle_validity(struct kvm_vcpu *vcpu)
{
+ unsigned long vmaddr;
int viwhy = vcpu->arch.sie_block->ipb >> 16;
int rc;
vcpu->stat.exit_validity++;
- if ((viwhy == 0x37) && (vcpu->arch.sie_block->prefix
- <= kvm_s390_vcpu_get_memsize(vcpu) - 2*PAGE_SIZE)) {
- rc = fault_in_pages_writeable((char __user *)
- vcpu->arch.sie_block->gmsor +
- vcpu->arch.sie_block->prefix,
- 2*PAGE_SIZE);
- if (rc)
+ if (viwhy == 0x37) {
+ vmaddr = gmap_fault(vcpu->arch.sie_block->prefix,
+ vcpu->arch.gmap);
+ if (IS_ERR_VALUE(vmaddr)) {
+ rc = -EOPNOTSUPP;
+ goto out;
+ }
+ rc = fault_in_pages_writeable((char __user *) vmaddr,
+ PAGE_SIZE);
+ if (rc) {
+ /* user will receive sigsegv, exit to user */
+ rc = -EOPNOTSUPP;
+ goto out;
+ }
+ vmaddr = gmap_fault(vcpu->arch.sie_block->prefix + PAGE_SIZE,
+ vcpu->arch.gmap);
+ if (IS_ERR_VALUE(vmaddr)) {
+ rc = -EOPNOTSUPP;
+ goto out;
+ }
+ rc = fault_in_pages_writeable((char __user *) vmaddr,
+ PAGE_SIZE);
+ if (rc) {
/* user will receive sigsegv, exit to user */
rc = -EOPNOTSUPP;
+ goto out;
+ }
} else
rc = -EOPNOTSUPP;
+out:
if (rc)
VCPU_EVENT(vcpu, 2, "unhandled validity intercept code %d",
viwhy);
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 35c21bf910c5..c9aeb4b4d0b8 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -128,6 +128,10 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu,
if (rc == -EFAULT)
exception = 1;
+ rc = put_guest_u16(vcpu, __LC_CPU_ADDRESS, inti->emerg.code);
+ if (rc == -EFAULT)
+ exception = 1;
+
rc = copy_to_guest(vcpu, __LC_EXT_OLD_PSW,
&vcpu->arch.sie_block->gpsw, sizeof(psw_t));
if (rc == -EFAULT)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 67345ae7ce8d..f17296e4fc89 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -62,6 +62,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ "instruction_chsc", VCPU_STAT(instruction_chsc) },
{ "instruction_stsi", VCPU_STAT(instruction_stsi) },
{ "instruction_stfl", VCPU_STAT(instruction_stfl) },
+ { "instruction_tprot", VCPU_STAT(instruction_tprot) },
{ "instruction_sigp_sense", VCPU_STAT(instruction_sigp_sense) },
{ "instruction_sigp_emergency", VCPU_STAT(instruction_sigp_emergency) },
{ "instruction_sigp_stop", VCPU_STAT(instruction_sigp_stop) },
@@ -189,7 +190,13 @@ int kvm_arch_init_vm(struct kvm *kvm)
debug_register_view(kvm->arch.dbf, &debug_sprintf_view);
VM_EVENT(kvm, 3, "%s", "vm created");
+ kvm->arch.gmap = gmap_alloc(current->mm);
+ if (!kvm->arch.gmap)
+ goto out_nogmap;
+
return 0;
+out_nogmap:
+ debug_unregister(kvm->arch.dbf);
out_nodbf:
free_page((unsigned long)(kvm->arch.sca));
out_err:
@@ -234,11 +241,13 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
kvm_free_vcpus(kvm);
free_page((unsigned long)(kvm->arch.sca));
debug_unregister(kvm->arch.dbf);
+ gmap_free(kvm->arch.gmap);
}
/* Section: vcpu related */
int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
{
+ vcpu->arch.gmap = vcpu->kvm->arch.gmap;
return 0;
}
@@ -284,8 +293,7 @@ static void kvm_s390_vcpu_initial_reset(struct kvm_vcpu *vcpu)
int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
{
- atomic_set(&vcpu->arch.sie_block->cpuflags, CPUSTAT_ZARCH);
- set_bit(KVM_REQ_MMU_RELOAD, &vcpu->requests);
+ atomic_set(&vcpu->arch.sie_block->cpuflags, CPUSTAT_ZARCH | CPUSTAT_SM);
vcpu->arch.sie_block->ecb = 6;
vcpu->arch.sie_block->eca = 0xC1002001U;
vcpu->arch.sie_block->fac = (int) (long) facilities;
@@ -453,6 +461,7 @@ static void __vcpu_run(struct kvm_vcpu *vcpu)
local_irq_disable();
kvm_guest_enter();
local_irq_enable();
+ gmap_enable(vcpu->arch.gmap);
VCPU_EVENT(vcpu, 6, "entering sie flags %x",
atomic_read(&vcpu->arch.sie_block->cpuflags));
if (sie64a(vcpu->arch.sie_block, vcpu->arch.guest_gprs)) {
@@ -461,6 +470,7 @@ static void __vcpu_run(struct kvm_vcpu *vcpu)
}
VCPU_EVENT(vcpu, 6, "exit sie icptcode %d",
vcpu->arch.sie_block->icptcode);
+ gmap_disable(vcpu->arch.gmap);
local_irq_disable();
kvm_guest_exit();
local_irq_enable();
@@ -474,17 +484,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
sigset_t sigsaved;
rerun_vcpu:
- if (vcpu->requests)
- if (test_and_clear_bit(KVM_REQ_MMU_RELOAD, &vcpu->requests))
- kvm_s390_vcpu_set_mem(vcpu);
-
- /* verify, that memory has been registered */
- if (!vcpu->arch.sie_block->gmslm) {
- vcpu_put(vcpu);
- VCPU_EVENT(vcpu, 3, "%s", "no memory registered to run vcpu");
- return -EINVAL;
- }
-
if (vcpu->sigset_active)
sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
@@ -545,7 +544,7 @@ rerun_vcpu:
return rc;
}
-static int __guestcopy(struct kvm_vcpu *vcpu, u64 guestdest, const void *from,
+static int __guestcopy(struct kvm_vcpu *vcpu, u64 guestdest, void *from,
unsigned long n, int prefix)
{
if (prefix)
@@ -562,7 +561,7 @@ static int __guestcopy(struct kvm_vcpu *vcpu, u64 guestdest, const void *from,
*/
int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr)
{
- const unsigned char archmode = 1;
+ unsigned char archmode = 1;
int prefix;
if (addr == KVM_S390_STORE_STATUS_NOADDR) {
@@ -680,10 +679,10 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,
if (mem->guest_phys_addr)
return -EINVAL;
- if (mem->userspace_addr & (PAGE_SIZE - 1))
+ if (mem->userspace_addr & 0xffffful)
return -EINVAL;
- if (mem->memory_size & (PAGE_SIZE - 1))
+ if (mem->memory_size & 0xffffful)
return -EINVAL;
if (!user_alloc)
@@ -697,15 +696,14 @@ void kvm_arch_commit_memory_region(struct kvm *kvm,
struct kvm_memory_slot old,
int user_alloc)
{
- int i;
- struct kvm_vcpu *vcpu;
+ int rc;
- /* request update of sie control block for all available vcpus */
- kvm_for_each_vcpu(i, vcpu, kvm) {
- if (test_and_set_bit(KVM_REQ_MMU_RELOAD, &vcpu->requests))
- continue;
- kvm_s390_inject_sigp_stop(vcpu, ACTION_RELOADVCPU_ON_STOP);
- }
+
+ rc = gmap_map_segment(kvm->arch.gmap, mem->userspace_addr,
+ mem->guest_phys_addr, mem->memory_size);
+ if (rc)
+ printk(KERN_WARNING "kvm-s390: failed to commit memory region\n");
+ return;
}
void kvm_arch_flush_shadow(struct kvm *kvm)
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index a7b7586626db..99b0b7597115 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -58,35 +58,9 @@ int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu,
int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code);
int kvm_s390_inject_sigp_stop(struct kvm_vcpu *vcpu, int action);
-static inline long kvm_s390_vcpu_get_memsize(struct kvm_vcpu *vcpu)
-{
- return vcpu->arch.sie_block->gmslm
- - vcpu->arch.sie_block->gmsor
- - VIRTIODESCSPACE + 1ul;
-}
-
-static inline void kvm_s390_vcpu_set_mem(struct kvm_vcpu *vcpu)
-{
- int idx;
- struct kvm_memory_slot *mem;
- struct kvm_memslots *memslots;
-
- idx = srcu_read_lock(&vcpu->kvm->srcu);
- memslots = kvm_memslots(vcpu->kvm);
-
- mem = &memslots->memslots[0];
-
- vcpu->arch.sie_block->gmsor = mem->userspace_addr;
- vcpu->arch.sie_block->gmslm =
- mem->userspace_addr +
- (mem->npages << PAGE_SHIFT) +
- VIRTIODESCSPACE - 1ul;
-
- srcu_read_unlock(&vcpu->kvm->srcu, idx);
-}
-
/* implemented in priv.c */
int kvm_s390_handle_b2(struct kvm_vcpu *vcpu);
+int kvm_s390_handle_e5(struct kvm_vcpu *vcpu);
/* implemented in sigp.c */
int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu);
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 73c47bd95db3..391626361084 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -326,3 +326,52 @@ int kvm_s390_handle_b2(struct kvm_vcpu *vcpu)
}
return -EOPNOTSUPP;
}
+
+static int handle_tprot(struct kvm_vcpu *vcpu)
+{
+ int base1 = (vcpu->arch.sie_block->ipb & 0xf0000000) >> 28;
+ int disp1 = (vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16;
+ int base2 = (vcpu->arch.sie_block->ipb & 0xf000) >> 12;
+ int disp2 = vcpu->arch.sie_block->ipb & 0x0fff;
+ u64 address1 = disp1 + base1 ? vcpu->arch.guest_gprs[base1] : 0;
+ u64 address2 = disp2 + base2 ? vcpu->arch.guest_gprs[base2] : 0;
+ struct vm_area_struct *vma;
+
+ vcpu->stat.instruction_tprot++;
+
+ /* we only handle the Linux memory detection case:
+ * access key == 0
+ * guest DAT == off
+ * everything else goes to userspace. */
+ if (address2 & 0xf0)
+ return -EOPNOTSUPP;
+ if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_DAT)
+ return -EOPNOTSUPP;
+
+
+ down_read(&current->mm->mmap_sem);
+ vma = find_vma(current->mm,
+ (unsigned long) __guestaddr_to_user(vcpu, address1));
+ if (!vma) {
+ up_read(&current->mm->mmap_sem);
+ return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+ }
+
+ vcpu->arch.sie_block->gpsw.mask &= ~(3ul << 44);
+ if (!(vma->vm_flags & VM_WRITE) && (vma->vm_flags & VM_READ))
+ vcpu->arch.sie_block->gpsw.mask |= (1ul << 44);
+ if (!(vma->vm_flags & VM_WRITE) && !(vma->vm_flags & VM_READ))
+ vcpu->arch.sie_block->gpsw.mask |= (2ul << 44);
+
+ up_read(&current->mm->mmap_sem);
+ return 0;
+}
+
+int kvm_s390_handle_e5(struct kvm_vcpu *vcpu)
+{
+ /* For e5xx... instructions we only handle TPROT */
+ if ((vcpu->arch.sie_block->ipa & 0x00ff) == 0x01)
+ return handle_tprot(vcpu);
+ return -EOPNOTSUPP;
+}
+
diff --git a/arch/s390/kvm/sie64a.S b/arch/s390/kvm/sie64a.S
deleted file mode 100644
index 5faa1b1b23fa..000000000000
--- a/arch/s390/kvm/sie64a.S
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- * sie64a.S - low level sie call
- *
- * Copyright IBM Corp. 2008,2010
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
- * Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
- */
-
-#include <linux/errno.h>
-#include <asm/asm-offsets.h>
-#include <asm/setup.h>
-#include <asm/asm-offsets.h>
-#include <asm/ptrace.h>
-#include <asm/thread_info.h>
-
-_TIF_EXIT_SIE = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_MCCK_PENDING)
-
-/*
- * offsets into stackframe
- * SP_ = offsets into stack sie64 is called with
- * SPI_ = offsets into irq stack
- */
-SP_GREGS = __SF_EMPTY
-SP_HOOK = __SF_EMPTY+8
-SP_GPP = __SF_EMPTY+16
-SPI_PSW = STACK_FRAME_OVERHEAD + __PT_PSW
-
-
- .macro SPP newpp
- tm __LC_MACHINE_FLAGS+6,0x20 # MACHINE_FLAG_SPP
- jz 0f
- .insn s,0xb2800000,\newpp
-0:
- .endm
-
-sie_irq_handler:
- SPP __LC_CMF_HPP # set host id
- larl %r2,sie_inst
- clg %r2,SPI_PSW+8(0,%r15) # intercepted sie
- jne 1f
- xc __LC_SIE_HOOK(8),__LC_SIE_HOOK
- lg %r2,__LC_THREAD_INFO # pointer thread_info struct
- tm __TI_flags+7(%r2),_TIF_EXIT_SIE
- jz 0f
- larl %r2,sie_exit # work pending, leave sie
- stg %r2,SPI_PSW+8(0,%r15)
- br %r14
-0: larl %r2,sie_reenter # re-enter with guest id
- stg %r2,SPI_PSW+8(0,%r15)
-1: br %r14
-
-/*
- * sie64a calling convention:
- * %r2 pointer to sie control block
- * %r3 guest register save area
- */
- .globl sie64a
-sie64a:
- stg %r3,SP_GREGS(%r15) # save guest register save area
- stmg %r6,%r14,__SF_GPRS(%r15) # save registers on entry
- lgr %r14,%r2 # pointer to sie control block
- larl %r5,sie_irq_handler
- stg %r2,SP_GPP(%r15)
- stg %r5,SP_HOOK(%r15) # save hook target
- lmg %r0,%r13,0(%r3) # load guest gprs 0-13
-sie_reenter:
- mvc __LC_SIE_HOOK(8),SP_HOOK(%r15)
- SPP SP_GPP(%r15) # set guest id
-sie_inst:
- sie 0(%r14)
- xc __LC_SIE_HOOK(8),__LC_SIE_HOOK
- SPP __LC_CMF_HPP # set host id
-sie_exit:
- lg %r14,SP_GREGS(%r15)
- stmg %r0,%r13,0(%r14) # save guest gprs 0-13
- lghi %r2,0
- lmg %r6,%r14,__SF_GPRS(%r15)
- br %r14
-
-sie_err:
- xc __LC_SIE_HOOK(8),__LC_SIE_HOOK
- SPP __LC_CMF_HPP # set host id
- lg %r14,SP_GREGS(%r15)
- stmg %r0,%r13,0(%r14) # save guest gprs 0-13
- lghi %r2,-EFAULT
- lmg %r6,%r14,__SF_GPRS(%r15)
- br %r14
-
- .section __ex_table,"a"
- .quad sie_inst,sie_err
- .quad sie_exit,sie_err
- .quad sie_reenter,sie_err
- .previous
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 702276f5e2fa..d6a50c1fb2e6 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -189,10 +189,8 @@ static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address,
/* make sure that the new value is valid memory */
address = address & 0x7fffe000u;
- if ((copy_from_user(&tmp, (void __user *)
- (address + vcpu->arch.sie_block->gmsor) , 1)) ||
- (copy_from_user(&tmp, (void __user *)(address +
- vcpu->arch.sie_block->gmsor + PAGE_SIZE), 1))) {
+ if (copy_from_guest_absolute(vcpu, &tmp, address, 1) ||
+ copy_from_guest_absolute(vcpu, &tmp, address + PAGE_SIZE, 1)) {
*reg |= SIGP_STAT_INVALID_PARAMETER;
return 1; /* invalid parameter */
}
diff --git a/arch/s390/lib/qrnnd.S b/arch/s390/lib/qrnnd.S
index eb1df632e749..d321329130ec 100644
--- a/arch/s390/lib/qrnnd.S
+++ b/arch/s390/lib/qrnnd.S
@@ -1,5 +1,7 @@
# S/390 __udiv_qrnnd
+#include <linux/linkage.h>
+
# r2 : &__r
# r3 : upper half of 64 bit word n
# r4 : lower half of 64 bit word n
@@ -8,8 +10,7 @@
# the quotient q is to be returned
.text
- .globl __udiv_qrnnd
-__udiv_qrnnd:
+ENTRY(__udiv_qrnnd)
st %r2,24(%r15) # store pointer to reminder for later
lr %r0,%r3 # reload n
lr %r1,%r4
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 095f782a5512..9564fc779b27 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -303,9 +303,24 @@ static inline int do_exception(struct pt_regs *regs, int access,
flags = FAULT_FLAG_ALLOW_RETRY;
if (access == VM_WRITE || (trans_exc_code & store_indication) == 0x400)
flags |= FAULT_FLAG_WRITE;
-retry:
down_read(&mm->mmap_sem);
+#ifdef CONFIG_PGSTE
+ if (test_tsk_thread_flag(current, TIF_SIE) && S390_lowcore.gmap) {
+ address = gmap_fault(address,
+ (struct gmap *) S390_lowcore.gmap);
+ if (address == -EFAULT) {
+ fault = VM_FAULT_BADMAP;
+ goto out_up;
+ }
+ if (address == -ENOMEM) {
+ fault = VM_FAULT_OOM;
+ goto out_up;
+ }
+ }
+#endif
+
+retry:
fault = VM_FAULT_BADMAP;
vma = find_vma(mm, address);
if (!vma)
@@ -356,6 +371,7 @@ retry:
/* Clear FAULT_FLAG_ALLOW_RETRY to avoid any risk
* of starvation. */
flags &= ~FAULT_FLAG_ALLOW_RETRY;
+ down_read(&mm->mmap_sem);
goto retry;
}
}
diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c
index a4d856db9154..597bb2d27c3c 100644
--- a/arch/s390/mm/hugetlbpage.c
+++ b/arch/s390/mm/hugetlbpage.c
@@ -35,7 +35,7 @@ int arch_prepare_hugepage(struct page *page)
if (MACHINE_HAS_HPAGE)
return 0;
- ptep = (pte_t *) pte_alloc_one(&init_mm, address);
+ ptep = (pte_t *) pte_alloc_one(&init_mm, addr);
if (!ptep)
return -ENOMEM;
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 37a23c223705..2adb23938a7f 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -16,6 +16,7 @@
#include <linux/module.h>
#include <linux/quicklist.h>
#include <linux/rcupdate.h>
+#include <linux/slab.h>
#include <asm/system.h>
#include <asm/pgtable.h>
@@ -133,30 +134,374 @@ void crst_table_downgrade(struct mm_struct *mm, unsigned long limit)
}
#endif
-static inline unsigned int atomic_xor_bits(atomic_t *v, unsigned int bits)
+#ifdef CONFIG_PGSTE
+
+/**
+ * gmap_alloc - allocate a guest address space
+ * @mm: pointer to the parent mm_struct
+ *
+ * Returns a guest address space structure.
+ */
+struct gmap *gmap_alloc(struct mm_struct *mm)
{
- unsigned int old, new;
+ struct gmap *gmap;
+ struct page *page;
+ unsigned long *table;
- do {
- old = atomic_read(v);
- new = old ^ bits;
- } while (atomic_cmpxchg(v, old, new) != old);
- return new;
+ gmap = kzalloc(sizeof(struct gmap), GFP_KERNEL);
+ if (!gmap)
+ goto out;
+ INIT_LIST_HEAD(&gmap->crst_list);
+ gmap->mm = mm;
+ page = alloc_pages(GFP_KERNEL, ALLOC_ORDER);
+ if (!page)
+ goto out_free;
+ list_add(&page->lru, &gmap->crst_list);
+ table = (unsigned long *) page_to_phys(page);
+ crst_table_init(table, _REGION1_ENTRY_EMPTY);
+ gmap->table = table;
+ list_add(&gmap->list, &mm->context.gmap_list);
+ return gmap;
+
+out_free:
+ kfree(gmap);
+out:
+ return NULL;
}
+EXPORT_SYMBOL_GPL(gmap_alloc);
-/*
- * page table entry allocation/free routines.
+static int gmap_unlink_segment(struct gmap *gmap, unsigned long *table)
+{
+ struct gmap_pgtable *mp;
+ struct gmap_rmap *rmap;
+ struct page *page;
+
+ if (*table & _SEGMENT_ENTRY_INV)
+ return 0;
+ page = pfn_to_page(*table >> PAGE_SHIFT);
+ mp = (struct gmap_pgtable *) page->index;
+ list_for_each_entry(rmap, &mp->mapper, list) {
+ if (rmap->entry != table)
+ continue;
+ list_del(&rmap->list);
+ kfree(rmap);
+ break;
+ }
+ *table = _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO | mp->vmaddr;
+ return 1;
+}
+
+static void gmap_flush_tlb(struct gmap *gmap)
+{
+ if (MACHINE_HAS_IDTE)
+ __tlb_flush_idte((unsigned long) gmap->table |
+ _ASCE_TYPE_REGION1);
+ else
+ __tlb_flush_global();
+}
+
+/**
+ * gmap_free - free a guest address space
+ * @gmap: pointer to the guest address space structure
*/
-#ifdef CONFIG_PGSTE
-static inline unsigned long *page_table_alloc_pgste(struct mm_struct *mm)
+void gmap_free(struct gmap *gmap)
+{
+ struct page *page, *next;
+ unsigned long *table;
+ int i;
+
+
+ /* Flush tlb. */
+ if (MACHINE_HAS_IDTE)
+ __tlb_flush_idte((unsigned long) gmap->table |
+ _ASCE_TYPE_REGION1);
+ else
+ __tlb_flush_global();
+
+ /* Free all segment & region tables. */
+ down_read(&gmap->mm->mmap_sem);
+ list_for_each_entry_safe(page, next, &gmap->crst_list, lru) {
+ table = (unsigned long *) page_to_phys(page);
+ if ((*table & _REGION_ENTRY_TYPE_MASK) == 0)
+ /* Remove gmap rmap structures for segment table. */
+ for (i = 0; i < PTRS_PER_PMD; i++, table++)
+ gmap_unlink_segment(gmap, table);
+ __free_pages(page, ALLOC_ORDER);
+ }
+ up_read(&gmap->mm->mmap_sem);
+ list_del(&gmap->list);
+ kfree(gmap);
+}
+EXPORT_SYMBOL_GPL(gmap_free);
+
+/**
+ * gmap_enable - switch primary space to the guest address space
+ * @gmap: pointer to the guest address space structure
+ */
+void gmap_enable(struct gmap *gmap)
+{
+ /* Load primary space page table origin. */
+ S390_lowcore.user_asce = _ASCE_TYPE_REGION1 | _ASCE_TABLE_LENGTH |
+ _ASCE_USER_BITS | __pa(gmap->table);
+ asm volatile("lctlg 1,1,%0\n" : : "m" (S390_lowcore.user_asce) );
+ S390_lowcore.gmap = (unsigned long) gmap;
+}
+EXPORT_SYMBOL_GPL(gmap_enable);
+
+/**
+ * gmap_disable - switch back to the standard primary address space
+ * @gmap: pointer to the guest address space structure
+ */
+void gmap_disable(struct gmap *gmap)
+{
+ /* Load primary space page table origin. */
+ S390_lowcore.user_asce =
+ gmap->mm->context.asce_bits | __pa(gmap->mm->pgd);
+ asm volatile("lctlg 1,1,%0\n" : : "m" (S390_lowcore.user_asce) );
+ S390_lowcore.gmap = 0UL;
+}
+EXPORT_SYMBOL_GPL(gmap_disable);
+
+static int gmap_alloc_table(struct gmap *gmap,
+ unsigned long *table, unsigned long init)
+{
+ struct page *page;
+ unsigned long *new;
+
+ page = alloc_pages(GFP_KERNEL, ALLOC_ORDER);
+ if (!page)
+ return -ENOMEM;
+ new = (unsigned long *) page_to_phys(page);
+ crst_table_init(new, init);
+ down_read(&gmap->mm->mmap_sem);
+ if (*table & _REGION_ENTRY_INV) {
+ list_add(&page->lru, &gmap->crst_list);
+ *table = (unsigned long) new | _REGION_ENTRY_LENGTH |
+ (*table & _REGION_ENTRY_TYPE_MASK);
+ } else
+ __free_pages(page, ALLOC_ORDER);
+ up_read(&gmap->mm->mmap_sem);
+ return 0;
+}
+
+/**
+ * gmap_unmap_segment - unmap segment from the guest address space
+ * @gmap: pointer to the guest address space structure
+ * @addr: address in the guest address space
+ * @len: length of the memory area to unmap
+ *
+ * Returns 0 if the unmap succeded, -EINVAL if not.
+ */
+int gmap_unmap_segment(struct gmap *gmap, unsigned long to, unsigned long len)
+{
+ unsigned long *table;
+ unsigned long off;
+ int flush;
+
+ if ((to | len) & (PMD_SIZE - 1))
+ return -EINVAL;
+ if (len == 0 || to + len < to)
+ return -EINVAL;
+
+ flush = 0;
+ down_read(&gmap->mm->mmap_sem);
+ for (off = 0; off < len; off += PMD_SIZE) {
+ /* Walk the guest addr space page table */
+ table = gmap->table + (((to + off) >> 53) & 0x7ff);
+ if (*table & _REGION_ENTRY_INV)
+ return 0;
+ table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
+ table = table + (((to + off) >> 42) & 0x7ff);
+ if (*table & _REGION_ENTRY_INV)
+ return 0;
+ table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
+ table = table + (((to + off) >> 31) & 0x7ff);
+ if (*table & _REGION_ENTRY_INV)
+ return 0;
+ table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
+ table = table + (((to + off) >> 20) & 0x7ff);
+
+ /* Clear segment table entry in guest address space. */
+ flush |= gmap_unlink_segment(gmap, table);
+ *table = _SEGMENT_ENTRY_INV;
+ }
+ up_read(&gmap->mm->mmap_sem);
+ if (flush)
+ gmap_flush_tlb(gmap);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(gmap_unmap_segment);
+
+/**
+ * gmap_mmap_segment - map a segment to the guest address space
+ * @gmap: pointer to the guest address space structure
+ * @from: source address in the parent address space
+ * @to: target address in the guest address space
+ *
+ * Returns 0 if the mmap succeded, -EINVAL or -ENOMEM if not.
+ */
+int gmap_map_segment(struct gmap *gmap, unsigned long from,
+ unsigned long to, unsigned long len)
+{
+ unsigned long *table;
+ unsigned long off;
+ int flush;
+
+ if ((from | to | len) & (PMD_SIZE - 1))
+ return -EINVAL;
+ if (len == 0 || from + len > PGDIR_SIZE ||
+ from + len < from || to + len < to)
+ return -EINVAL;
+
+ flush = 0;
+ down_read(&gmap->mm->mmap_sem);
+ for (off = 0; off < len; off += PMD_SIZE) {
+ /* Walk the gmap address space page table */
+ table = gmap->table + (((to + off) >> 53) & 0x7ff);
+ if ((*table & _REGION_ENTRY_INV) &&
+ gmap_alloc_table(gmap, table, _REGION2_ENTRY_EMPTY))
+ goto out_unmap;
+ table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
+ table = table + (((to + off) >> 42) & 0x7ff);
+ if ((*table & _REGION_ENTRY_INV) &&
+ gmap_alloc_table(gmap, table, _REGION3_ENTRY_EMPTY))
+ goto out_unmap;
+ table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
+ table = table + (((to + off) >> 31) & 0x7ff);
+ if ((*table & _REGION_ENTRY_INV) &&
+ gmap_alloc_table(gmap, table, _SEGMENT_ENTRY_EMPTY))
+ goto out_unmap;
+ table = (unsigned long *) (*table & _REGION_ENTRY_ORIGIN);
+ table = table + (((to + off) >> 20) & 0x7ff);
+
+ /* Store 'from' address in an invalid segment table entry. */
+ flush |= gmap_unlink_segment(gmap, table);
+ *table = _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO | (from + off);
+ }
+ up_read(&gmap->mm->mmap_sem);
+ if (flush)
+ gmap_flush_tlb(gmap);
+ return 0;
+
+out_unmap:
+ up_read(&gmap->mm->mmap_sem);
+ gmap_unmap_segment(gmap, to, len);
+ return -ENOMEM;
+}
+EXPORT_SYMBOL_GPL(gmap_map_segment);
+
+unsigned long gmap_fault(unsigned long address, struct gmap *gmap)
+{
+ unsigned long *table, vmaddr, segment;
+ struct mm_struct *mm;
+ struct gmap_pgtable *mp;
+ struct gmap_rmap *rmap;
+ struct vm_area_struct *vma;
+ struct page *page;
+ pgd_t *pgd;
+ pud_t *pud;
+ pmd_t *pmd;
+
+ current->thread.gmap_addr = address;
+ mm = gmap->mm;
+ /* Walk the gmap address space page table */
+ table = gmap->table + ((address >> 53) & 0x7ff);
+ if (unlikely(*table & _REGION_ENTRY_INV))
+ return -EFAULT;
+ table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
+ table = table + ((address >> 42) & 0x7ff);
+ if (unlikely(*table & _REGION_ENTRY_INV))
+ return -EFAULT;
+ table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
+ table = table + ((address >> 31) & 0x7ff);
+ if (unlikely(*table & _REGION_ENTRY_INV))
+ return -EFAULT;
+ table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
+ table = table + ((address >> 20) & 0x7ff);
+
+ /* Convert the gmap address to an mm address. */
+ segment = *table;
+ if (likely(!(segment & _SEGMENT_ENTRY_INV))) {
+ page = pfn_to_page(segment >> PAGE_SHIFT);
+ mp = (struct gmap_pgtable *) page->index;
+ return mp->vmaddr | (address & ~PMD_MASK);
+ } else if (segment & _SEGMENT_ENTRY_RO) {
+ vmaddr = segment & _SEGMENT_ENTRY_ORIGIN;
+ vma = find_vma(mm, vmaddr);
+ if (!vma || vma->vm_start > vmaddr)
+ return -EFAULT;
+
+ /* Walk the parent mm page table */
+ pgd = pgd_offset(mm, vmaddr);
+ pud = pud_alloc(mm, pgd, vmaddr);
+ if (!pud)
+ return -ENOMEM;
+ pmd = pmd_alloc(mm, pud, vmaddr);
+ if (!pmd)
+ return -ENOMEM;
+ if (!pmd_present(*pmd) &&
+ __pte_alloc(mm, vma, pmd, vmaddr))
+ return -ENOMEM;
+ /* pmd now points to a valid segment table entry. */
+ rmap = kmalloc(sizeof(*rmap), GFP_KERNEL|__GFP_REPEAT);
+ if (!rmap)
+ return -ENOMEM;
+ /* Link gmap segment table entry location to page table. */
+ page = pmd_page(*pmd);
+ mp = (struct gmap_pgtable *) page->index;
+ rmap->entry = table;
+ list_add(&rmap->list, &mp->mapper);
+ /* Set gmap segment table entry to page table. */
+ *table = pmd_val(*pmd) & PAGE_MASK;
+ return vmaddr | (address & ~PMD_MASK);
+ }
+ return -EFAULT;
+
+}
+EXPORT_SYMBOL_GPL(gmap_fault);
+
+void gmap_unmap_notifier(struct mm_struct *mm, unsigned long *table)
+{
+ struct gmap_rmap *rmap, *next;
+ struct gmap_pgtable *mp;
+ struct page *page;
+ int flush;
+
+ flush = 0;
+ spin_lock(&mm->page_table_lock);
+ page = pfn_to_page(__pa(table) >> PAGE_SHIFT);
+ mp = (struct gmap_pgtable *) page->index;
+ list_for_each_entry_safe(rmap, next, &mp->mapper, list) {
+ *rmap->entry =
+ _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO | mp->vmaddr;
+ list_del(&rmap->list);
+ kfree(rmap);
+ flush = 1;
+ }
+ spin_unlock(&mm->page_table_lock);
+ if (flush)
+ __tlb_flush_global();
+}
+
+static inline unsigned long *page_table_alloc_pgste(struct mm_struct *mm,
+ unsigned long vmaddr)
{
struct page *page;
unsigned long *table;
+ struct gmap_pgtable *mp;
page = alloc_page(GFP_KERNEL|__GFP_REPEAT);
if (!page)
return NULL;
+ mp = kmalloc(sizeof(*mp), GFP_KERNEL|__GFP_REPEAT);
+ if (!mp) {
+ __free_page(page);
+ return NULL;
+ }
pgtable_page_ctor(page);
+ mp->vmaddr = vmaddr & PMD_MASK;
+ INIT_LIST_HEAD(&mp->mapper);
+ page->index = (unsigned long) mp;
atomic_set(&page->_mapcount, 3);
table = (unsigned long *) page_to_phys(page);
clear_table(table, _PAGE_TYPE_EMPTY, PAGE_SIZE/2);
@@ -167,24 +512,57 @@ static inline unsigned long *page_table_alloc_pgste(struct mm_struct *mm)
static inline void page_table_free_pgste(unsigned long *table)
{
struct page *page;
+ struct gmap_pgtable *mp;
page = pfn_to_page(__pa(table) >> PAGE_SHIFT);
+ mp = (struct gmap_pgtable *) page->index;
+ BUG_ON(!list_empty(&mp->mapper));
pgtable_page_ctor(page);
atomic_set(&page->_mapcount, -1);
+ kfree(mp);
__free_page(page);
}
-#endif
-unsigned long *page_table_alloc(struct mm_struct *mm)
+#else /* CONFIG_PGSTE */
+
+static inline unsigned long *page_table_alloc_pgste(struct mm_struct *mm,
+ unsigned long vmaddr)
+{
+}
+
+static inline void page_table_free_pgste(unsigned long *table)
+{
+}
+
+static inline void gmap_unmap_notifier(struct mm_struct *mm,
+ unsigned long *table)
+{
+}
+
+#endif /* CONFIG_PGSTE */
+
+static inline unsigned int atomic_xor_bits(atomic_t *v, unsigned int bits)
+{
+ unsigned int old, new;
+
+ do {
+ old = atomic_read(v);
+ new = old ^ bits;
+ } while (atomic_cmpxchg(v, old, new) != old);
+ return new;
+}
+
+/*
+ * page table entry allocation/free routines.
+ */
+unsigned long *page_table_alloc(struct mm_struct *mm, unsigned long vmaddr)
{
struct page *page;
unsigned long *table;
unsigned int mask, bit;
-#ifdef CONFIG_PGSTE
if (mm_has_pgste(mm))
- return page_table_alloc_pgste(mm);
-#endif
+ return page_table_alloc_pgste(mm, vmaddr);
/* Allocate fragments of a 4K page as 1K/2K page table */
spin_lock_bh(&mm->context.list_lock);
mask = FRAG_MASK;
@@ -222,10 +600,10 @@ void page_table_free(struct mm_struct *mm, unsigned long *table)
struct page *page;
unsigned int bit, mask;
-#ifdef CONFIG_PGSTE
- if (mm_has_pgste(mm))
+ if (mm_has_pgste(mm)) {
+ gmap_unmap_notifier(mm, table);
return page_table_free_pgste(table);
-#endif
+ }
/* Free 1K/2K page table fragment of a 4K page */
page = pfn_to_page(__pa(table) >> PAGE_SHIFT);
bit = 1 << ((__pa(table) & ~PAGE_MASK)/(PTRS_PER_PTE*sizeof(pte_t)));
@@ -249,10 +627,8 @@ static void __page_table_free_rcu(void *table, unsigned bit)
{
struct page *page;
-#ifdef CONFIG_PGSTE
if (bit == FRAG_MASK)
return page_table_free_pgste(table);
-#endif
/* Free 1K/2K page table fragment of a 4K page */
page = pfn_to_page(__pa(table) >> PAGE_SHIFT);
if (atomic_xor_bits(&page->_mapcount, bit) == 0) {
@@ -269,13 +645,12 @@ void page_table_free_rcu(struct mmu_gather *tlb, unsigned long *table)
unsigned int bit, mask;
mm = tlb->mm;
-#ifdef CONFIG_PGSTE
if (mm_has_pgste(mm)) {
+ gmap_unmap_notifier(mm, table);
table = (unsigned long *) (__pa(table) | FRAG_MASK);
tlb_remove_table(tlb, table);
return;
}
-#endif
bit = 1 << ((__pa(table) & ~PAGE_MASK) / (PTRS_PER_PTE*sizeof(pte_t)));
page = pfn_to_page(__pa(table) >> PAGE_SHIFT);
spin_lock_bh(&mm->context.list_lock);
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index 8c1970d1dd91..781ff5169560 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -61,12 +61,12 @@ static inline pmd_t *vmem_pmd_alloc(void)
return pmd;
}
-static pte_t __ref *vmem_pte_alloc(void)
+static pte_t __ref *vmem_pte_alloc(unsigned long address)
{
pte_t *pte;
if (slab_is_available())
- pte = (pte_t *) page_table_alloc(&init_mm);
+ pte = (pte_t *) page_table_alloc(&init_mm, address);
else
pte = alloc_bootmem(PTRS_PER_PTE * sizeof(pte_t));
if (!pte)
@@ -120,7 +120,7 @@ static int vmem_add_mem(unsigned long start, unsigned long size, int ro)
}
#endif
if (pmd_none(*pm_dir)) {
- pt_dir = vmem_pte_alloc();
+ pt_dir = vmem_pte_alloc(address);
if (!pt_dir)
goto out;
pmd_populate(&init_mm, pm_dir, pt_dir);
@@ -205,7 +205,7 @@ int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node)
pm_dir = pmd_offset(pu_dir, address);
if (pmd_none(*pm_dir)) {
- pt_dir = vmem_pte_alloc();
+ pt_dir = vmem_pte_alloc(address);
if (!pt_dir)
goto out;
pmd_populate(&init_mm, pm_dir, pt_dir);
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 86b6f1cc1b10..432444af7ee4 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -22,6 +22,8 @@
#include <linux/hdreg.h>
#include <linux/async.h>
#include <linux/mutex.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
#include <asm/ccwdev.h>
#include <asm/ebcdic.h>
@@ -45,6 +47,7 @@
* SECTION: exported variables of dasd.c
*/
debug_info_t *dasd_debug_area;
+static struct dentry *dasd_debugfs_root_entry;
struct dasd_discipline *dasd_diag_discipline_pointer;
void dasd_int_handler(struct ccw_device *, unsigned long, struct irb *);
@@ -71,6 +74,8 @@ static void dasd_return_cqr_cb(struct dasd_ccw_req *, void *);
static void dasd_device_timeout(unsigned long);
static void dasd_block_timeout(unsigned long);
static void __dasd_process_erp(struct dasd_device *, struct dasd_ccw_req *);
+static void dasd_profile_init(struct dasd_profile *, struct dentry *);
+static void dasd_profile_exit(struct dasd_profile *);
/*
* SECTION: Operations on the device structure.
@@ -121,7 +126,7 @@ struct dasd_device *dasd_alloc_device(void)
device->state = DASD_STATE_NEW;
device->target = DASD_STATE_NEW;
mutex_init(&device->state_mutex);
-
+ spin_lock_init(&device->profile.lock);
return device;
}
@@ -159,6 +164,7 @@ struct dasd_block *dasd_alloc_block(void)
init_timer(&block->timer);
block->timer.function = dasd_block_timeout;
block->timer.data = (unsigned long) block;
+ spin_lock_init(&block->profile.lock);
return block;
}
@@ -222,19 +228,44 @@ static int dasd_state_known_to_new(struct dasd_device *device)
return 0;
}
+static struct dentry *dasd_debugfs_setup(const char *name,
+ struct dentry *base_dentry)
+{
+ struct dentry *pde;
+
+ if (!base_dentry)
+ return NULL;
+ pde = debugfs_create_dir(name, base_dentry);
+ if (!pde || IS_ERR(pde))
+ return NULL;
+ return pde;
+}
+
/*
* Request the irq line for the device.
*/
static int dasd_state_known_to_basic(struct dasd_device *device)
{
+ struct dasd_block *block = device->block;
int rc;
/* Allocate and register gendisk structure. */
- if (device->block) {
- rc = dasd_gendisk_alloc(device->block);
+ if (block) {
+ rc = dasd_gendisk_alloc(block);
if (rc)
return rc;
- }
+ block->debugfs_dentry =
+ dasd_debugfs_setup(block->gdp->disk_name,
+ dasd_debugfs_root_entry);
+ dasd_profile_init(&block->profile, block->debugfs_dentry);
+ if (dasd_global_profile_level == DASD_PROFILE_ON)
+ dasd_profile_on(&device->block->profile);
+ }
+ device->debugfs_dentry =
+ dasd_debugfs_setup(dev_name(&device->cdev->dev),
+ dasd_debugfs_root_entry);
+ dasd_profile_init(&device->profile, device->debugfs_dentry);
+
/* register 'device' debug area, used for all DBF_DEV_XXX calls */
device->debug_area = debug_register(dev_name(&device->cdev->dev), 4, 1,
8 * sizeof(long));
@@ -253,6 +284,9 @@ static int dasd_state_basic_to_known(struct dasd_device *device)
{
int rc;
if (device->block) {
+ dasd_profile_exit(&device->block->profile);
+ if (device->block->debugfs_dentry)
+ debugfs_remove(device->block->debugfs_dentry);
dasd_gendisk_free(device->block);
dasd_block_clear_timer(device->block);
}
@@ -260,6 +294,9 @@ static int dasd_state_basic_to_known(struct dasd_device *device)
if (rc)
return rc;
dasd_device_clear_timer(device);
+ dasd_profile_exit(&device->profile);
+ if (device->debugfs_dentry)
+ debugfs_remove(device->debugfs_dentry);
DBF_DEV_EVENT(DBF_EMERG, device, "%p debug area deleted", device);
if (device->debug_area != NULL) {
@@ -609,21 +646,13 @@ void dasd_enable_device(struct dasd_device *device)
/*
* SECTION: device operation (interrupt handler, start i/o, term i/o ...)
*/
-#ifdef CONFIG_DASD_PROFILE
-struct dasd_profile_info_t dasd_global_profile;
-unsigned int dasd_profile_level = DASD_PROFILE_OFF;
+unsigned int dasd_global_profile_level = DASD_PROFILE_OFF;
-/*
- * Increments counter in global and local profiling structures.
- */
-#define dasd_profile_counter(value, counter, block) \
-{ \
- int index; \
- for (index = 0; index < 31 && value >> (2+index); index++); \
- dasd_global_profile.counter[index]++; \
- block->profile.counter[index]++; \
-}
+#ifdef CONFIG_DASD_PROFILE
+struct dasd_profile_info dasd_global_profile_data;
+static struct dentry *dasd_global_profile_dentry;
+static struct dentry *dasd_debugfs_global_entry;
/*
* Add profiling information for cqr before execution.
@@ -634,30 +663,121 @@ static void dasd_profile_start(struct dasd_block *block,
{
struct list_head *l;
unsigned int counter;
-
- if (dasd_profile_level != DASD_PROFILE_ON)
- return;
+ struct dasd_device *device;
/* count the length of the chanq for statistics */
counter = 0;
- list_for_each(l, &block->ccw_queue)
- if (++counter >= 31)
- break;
- dasd_global_profile.dasd_io_nr_req[counter]++;
- block->profile.dasd_io_nr_req[counter]++;
+ if (dasd_global_profile_level || block->profile.data)
+ list_for_each(l, &block->ccw_queue)
+ if (++counter >= 31)
+ break;
+
+ if (dasd_global_profile_level) {
+ dasd_global_profile_data.dasd_io_nr_req[counter]++;
+ if (rq_data_dir(req) == READ)
+ dasd_global_profile_data.dasd_read_nr_req[counter]++;
+ }
+
+ spin_lock(&block->profile.lock);
+ if (block->profile.data)
+ block->profile.data->dasd_io_nr_req[counter]++;
+ if (rq_data_dir(req) == READ)
+ block->profile.data->dasd_read_nr_req[counter]++;
+ spin_unlock(&block->profile.lock);
+
+ /*
+ * We count the request for the start device, even though it may run on
+ * some other device due to error recovery. This way we make sure that
+ * we count each request only once.
+ */
+ device = cqr->startdev;
+ if (device->profile.data) {
+ counter = 1; /* request is not yet queued on the start device */
+ list_for_each(l, &device->ccw_queue)
+ if (++counter >= 31)
+ break;
+ }
+ spin_lock(&device->profile.lock);
+ if (device->profile.data) {
+ device->profile.data->dasd_io_nr_req[counter]++;
+ if (rq_data_dir(req) == READ)
+ device->profile.data->dasd_read_nr_req[counter]++;
+ }
+ spin_unlock(&device->profile.lock);
}
/*
* Add profiling information for cqr after execution.
*/
+
+#define dasd_profile_counter(value, index) \
+{ \
+ for (index = 0; index < 31 && value >> (2+index); index++) \
+ ; \
+}
+
+static void dasd_profile_end_add_data(struct dasd_profile_info *data,
+ int is_alias,
+ int is_tpm,
+ int is_read,
+ long sectors,
+ int sectors_ind,
+ int tottime_ind,
+ int tottimeps_ind,
+ int strtime_ind,
+ int irqtime_ind,
+ int irqtimeps_ind,
+ int endtime_ind)
+{
+ /* in case of an overflow, reset the whole profile */
+ if (data->dasd_io_reqs == UINT_MAX) {
+ memset(data, 0, sizeof(*data));
+ getnstimeofday(&data->starttod);
+ }
+ data->dasd_io_reqs++;
+ data->dasd_io_sects += sectors;
+ if (is_alias)
+ data->dasd_io_alias++;
+ if (is_tpm)
+ data->dasd_io_tpm++;
+
+ data->dasd_io_secs[sectors_ind]++;
+ data->dasd_io_times[tottime_ind]++;
+ data->dasd_io_timps[tottimeps_ind]++;
+ data->dasd_io_time1[strtime_ind]++;
+ data->dasd_io_time2[irqtime_ind]++;
+ data->dasd_io_time2ps[irqtimeps_ind]++;
+ data->dasd_io_time3[endtime_ind]++;
+
+ if (is_read) {
+ data->dasd_read_reqs++;
+ data->dasd_read_sects += sectors;
+ if (is_alias)
+ data->dasd_read_alias++;
+ if (is_tpm)
+ data->dasd_read_tpm++;
+ data->dasd_read_secs[sectors_ind]++;
+ data->dasd_read_times[tottime_ind]++;
+ data->dasd_read_time1[strtime_ind]++;
+ data->dasd_read_time2[irqtime_ind]++;
+ data->dasd_read_time3[endtime_ind]++;
+ }
+}
+
static void dasd_profile_end(struct dasd_block *block,
struct dasd_ccw_req *cqr,
struct request *req)
{
long strtime, irqtime, endtime, tottime; /* in microseconds */
long tottimeps, sectors;
+ struct dasd_device *device;
+ int sectors_ind, tottime_ind, tottimeps_ind, strtime_ind;
+ int irqtime_ind, irqtimeps_ind, endtime_ind;
- if (dasd_profile_level != DASD_PROFILE_ON)
+ device = cqr->startdev;
+ if (!(dasd_global_profile_level ||
+ block->profile.data ||
+ device->profile.data))
return;
sectors = blk_rq_sectors(req);
@@ -672,29 +792,392 @@ static void dasd_profile_end(struct dasd_block *block,
tottime = ((cqr->endclk - cqr->buildclk) >> 12);
tottimeps = tottime / sectors;
- if (!dasd_global_profile.dasd_io_reqs)
- memset(&dasd_global_profile, 0,
- sizeof(struct dasd_profile_info_t));
- dasd_global_profile.dasd_io_reqs++;
- dasd_global_profile.dasd_io_sects += sectors;
-
- if (!block->profile.dasd_io_reqs)
- memset(&block->profile, 0,
- sizeof(struct dasd_profile_info_t));
- block->profile.dasd_io_reqs++;
- block->profile.dasd_io_sects += sectors;
-
- dasd_profile_counter(sectors, dasd_io_secs, block);
- dasd_profile_counter(tottime, dasd_io_times, block);
- dasd_profile_counter(tottimeps, dasd_io_timps, block);
- dasd_profile_counter(strtime, dasd_io_time1, block);
- dasd_profile_counter(irqtime, dasd_io_time2, block);
- dasd_profile_counter(irqtime / sectors, dasd_io_time2ps, block);
- dasd_profile_counter(endtime, dasd_io_time3, block);
+ dasd_profile_counter(sectors, sectors_ind);
+ dasd_profile_counter(tottime, tottime_ind);
+ dasd_profile_counter(tottimeps, tottimeps_ind);
+ dasd_profile_counter(strtime, strtime_ind);
+ dasd_profile_counter(irqtime, irqtime_ind);
+ dasd_profile_counter(irqtime / sectors, irqtimeps_ind);
+ dasd_profile_counter(endtime, endtime_ind);
+
+ if (dasd_global_profile_level) {
+ dasd_profile_end_add_data(&dasd_global_profile_data,
+ cqr->startdev != block->base,
+ cqr->cpmode == 1,
+ rq_data_dir(req) == READ,
+ sectors, sectors_ind, tottime_ind,
+ tottimeps_ind, strtime_ind,
+ irqtime_ind, irqtimeps_ind,
+ endtime_ind);
+ }
+
+ spin_lock(&block->profile.lock);
+ if (block->profile.data)
+ dasd_profile_end_add_data(block->profile.data,
+ cqr->startdev != block->base,
+ cqr->cpmode == 1,
+ rq_data_dir(req) == READ,
+ sectors, sectors_ind, tottime_ind,
+ tottimeps_ind, strtime_ind,
+ irqtime_ind, irqtimeps_ind,
+ endtime_ind);
+ spin_unlock(&block->profile.lock);
+
+ spin_lock(&device->profile.lock);
+ if (device->profile.data)
+ dasd_profile_end_add_data(device->profile.data,
+ cqr->startdev != block->base,
+ cqr->cpmode == 1,
+ rq_data_dir(req) == READ,
+ sectors, sectors_ind, tottime_ind,
+ tottimeps_ind, strtime_ind,
+ irqtime_ind, irqtimeps_ind,
+ endtime_ind);
+ spin_unlock(&device->profile.lock);
+}
+
+void dasd_profile_reset(struct dasd_profile *profile)
+{
+ struct dasd_profile_info *data;
+
+ spin_lock_bh(&profile->lock);
+ data = profile->data;
+ if (!data) {
+ spin_unlock_bh(&profile->lock);
+ return;
+ }
+ memset(data, 0, sizeof(*data));
+ getnstimeofday(&data->starttod);
+ spin_unlock_bh(&profile->lock);
+}
+
+void dasd_global_profile_reset(void)
+{
+ memset(&dasd_global_profile_data, 0, sizeof(dasd_global_profile_data));
+ getnstimeofday(&dasd_global_profile_data.starttod);
+}
+
+int dasd_profile_on(struct dasd_profile *profile)
+{
+ struct dasd_profile_info *data;
+
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+ spin_lock_bh(&profile->lock);
+ if (profile->data) {
+ spin_unlock_bh(&profile->lock);
+ kfree(data);
+ return 0;
+ }
+ getnstimeofday(&data->starttod);
+ profile->data = data;
+ spin_unlock_bh(&profile->lock);
+ return 0;
+}
+
+void dasd_profile_off(struct dasd_profile *profile)
+{
+ spin_lock_bh(&profile->lock);
+ kfree(profile->data);
+ profile->data = NULL;
+ spin_unlock_bh(&profile->lock);
+}
+
+char *dasd_get_user_string(const char __user *user_buf, size_t user_len)
+{
+ char *buffer;
+
+ buffer = kmalloc(user_len + 1, GFP_KERNEL);
+ if (buffer == NULL)
+ return ERR_PTR(-ENOMEM);
+ if (copy_from_user(buffer, user_buf, user_len) != 0) {
+ kfree(buffer);
+ return ERR_PTR(-EFAULT);
+ }
+ /* got the string, now strip linefeed. */
+ if (buffer[user_len - 1] == '\n')
+ buffer[user_len - 1] = 0;
+ else
+ buffer[user_len] = 0;
+ return buffer;
}
+
+static ssize_t dasd_stats_write(struct file *file,
+ const char __user *user_buf,
+ size_t user_len, loff_t *pos)
+{
+ char *buffer, *str;
+ int rc;
+ struct seq_file *m = (struct seq_file *)file->private_data;
+ struct dasd_profile *prof = m->private;
+
+ if (user_len > 65536)
+ user_len = 65536;
+ buffer = dasd_get_user_string(user_buf, user_len);
+ if (IS_ERR(buffer))
+ return PTR_ERR(buffer);
+
+ str = skip_spaces(buffer);
+ rc = user_len;
+ if (strncmp(str, "reset", 5) == 0) {
+ dasd_profile_reset(prof);
+ } else if (strncmp(str, "on", 2) == 0) {
+ rc = dasd_profile_on(prof);
+ if (!rc)
+ rc = user_len;
+ } else if (strncmp(str, "off", 3) == 0) {
+ dasd_profile_off(prof);
+ } else
+ rc = -EINVAL;
+ kfree(buffer);
+ return rc;
+}
+
+static void dasd_stats_array(struct seq_file *m, unsigned int *array)
+{
+ int i;
+
+ for (i = 0; i < 32; i++)
+ seq_printf(m, "%u ", array[i]);
+ seq_putc(m, '\n');
+}
+
+static void dasd_stats_seq_print(struct seq_file *m,
+ struct dasd_profile_info *data)
+{
+ seq_printf(m, "start_time %ld.%09ld\n",
+ data->starttod.tv_sec, data->starttod.tv_nsec);
+ seq_printf(m, "total_requests %u\n", data->dasd_io_reqs);
+ seq_printf(m, "total_sectors %u\n", data->dasd_io_sects);
+ seq_printf(m, "total_pav %u\n", data->dasd_io_alias);
+ seq_printf(m, "total_hpf %u\n", data->dasd_io_tpm);
+ seq_printf(m, "histogram_sectors ");
+ dasd_stats_array(m, data->dasd_io_secs);
+ seq_printf(m, "histogram_io_times ");
+ dasd_stats_array(m, data->dasd_io_times);
+ seq_printf(m, "histogram_io_times_weighted ");
+ dasd_stats_array(m, data->dasd_io_timps);
+ seq_printf(m, "histogram_time_build_to_ssch ");
+ dasd_stats_array(m, data->dasd_io_time1);
+ seq_printf(m, "histogram_time_ssch_to_irq ");
+ dasd_stats_array(m, data->dasd_io_time2);
+ seq_printf(m, "histogram_time_ssch_to_irq_weighted ");
+ dasd_stats_array(m, data->dasd_io_time2ps);
+ seq_printf(m, "histogram_time_irq_to_end ");
+ dasd_stats_array(m, data->dasd_io_time3);
+ seq_printf(m, "histogram_ccw_queue_length ");
+ dasd_stats_array(m, data->dasd_io_nr_req);
+ seq_printf(m, "total_read_requests %u\n", data->dasd_read_reqs);
+ seq_printf(m, "total_read_sectors %u\n", data->dasd_read_sects);
+ seq_printf(m, "total_read_pav %u\n", data->dasd_read_alias);
+ seq_printf(m, "total_read_hpf %u\n", data->dasd_read_tpm);
+ seq_printf(m, "histogram_read_sectors ");
+ dasd_stats_array(m, data->dasd_read_secs);
+ seq_printf(m, "histogram_read_times ");
+ dasd_stats_array(m, data->dasd_read_times);
+ seq_printf(m, "histogram_read_time_build_to_ssch ");
+ dasd_stats_array(m, data->dasd_read_time1);
+ seq_printf(m, "histogram_read_time_ssch_to_irq ");
+ dasd_stats_array(m, data->dasd_read_time2);
+ seq_printf(m, "histogram_read_time_irq_to_end ");
+ dasd_stats_array(m, data->dasd_read_time3);
+ seq_printf(m, "histogram_read_ccw_queue_length ");
+ dasd_stats_array(m, data->dasd_read_nr_req);
+}
+
+static int dasd_stats_show(struct seq_file *m, void *v)
+{
+ struct dasd_profile *profile;
+ struct dasd_profile_info *data;
+
+ profile = m->private;
+ spin_lock_bh(&profile->lock);
+ data = profile->data;
+ if (!data) {
+ spin_unlock_bh(&profile->lock);
+ seq_printf(m, "disabled\n");
+ return 0;
+ }
+ dasd_stats_seq_print(m, data);
+ spin_unlock_bh(&profile->lock);
+ return 0;
+}
+
+static int dasd_stats_open(struct inode *inode, struct file *file)
+{
+ struct dasd_profile *profile = inode->i_private;
+ return single_open(file, dasd_stats_show, profile);
+}
+
+static const struct file_operations dasd_stats_raw_fops = {
+ .owner = THIS_MODULE,
+ .open = dasd_stats_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = dasd_stats_write,
+};
+
+static ssize_t dasd_stats_global_write(struct file *file,
+ const char __user *user_buf,
+ size_t user_len, loff_t *pos)
+{
+ char *buffer, *str;
+ ssize_t rc;
+
+ if (user_len > 65536)
+ user_len = 65536;
+ buffer = dasd_get_user_string(user_buf, user_len);
+ if (IS_ERR(buffer))
+ return PTR_ERR(buffer);
+ str = skip_spaces(buffer);
+ rc = user_len;
+ if (strncmp(str, "reset", 5) == 0) {
+ dasd_global_profile_reset();
+ } else if (strncmp(str, "on", 2) == 0) {
+ dasd_global_profile_reset();
+ dasd_global_profile_level = DASD_PROFILE_GLOBAL_ONLY;
+ } else if (strncmp(str, "off", 3) == 0) {
+ dasd_global_profile_level = DASD_PROFILE_OFF;
+ } else
+ rc = -EINVAL;
+ kfree(buffer);
+ return rc;
+}
+
+static int dasd_stats_global_show(struct seq_file *m, void *v)
+{
+ if (!dasd_global_profile_level) {
+ seq_printf(m, "disabled\n");
+ return 0;
+ }
+ dasd_stats_seq_print(m, &dasd_global_profile_data);
+ return 0;
+}
+
+static int dasd_stats_global_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, dasd_stats_global_show, NULL);
+}
+
+static const struct file_operations dasd_stats_global_fops = {
+ .owner = THIS_MODULE,
+ .open = dasd_stats_global_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = dasd_stats_global_write,
+};
+
+static void dasd_profile_init(struct dasd_profile *profile,
+ struct dentry *base_dentry)
+{
+ mode_t mode;
+ struct dentry *pde;
+
+ if (!base_dentry)
+ return;
+ profile->dentry = NULL;
+ profile->data = NULL;
+ mode = (S_IRUSR | S_IWUSR | S_IFREG);
+ pde = debugfs_create_file("statistics", mode, base_dentry,
+ profile, &dasd_stats_raw_fops);
+ if (pde && !IS_ERR(pde))
+ profile->dentry = pde;
+ return;
+}
+
+static void dasd_profile_exit(struct dasd_profile *profile)
+{
+ dasd_profile_off(profile);
+ if (profile->dentry) {
+ debugfs_remove(profile->dentry);
+ profile->dentry = NULL;
+ }
+}
+
+static void dasd_statistics_removeroot(void)
+{
+ dasd_global_profile_level = DASD_PROFILE_OFF;
+ if (dasd_global_profile_dentry) {
+ debugfs_remove(dasd_global_profile_dentry);
+ dasd_global_profile_dentry = NULL;
+ }
+ if (dasd_debugfs_global_entry)
+ debugfs_remove(dasd_debugfs_global_entry);
+ if (dasd_debugfs_root_entry)
+ debugfs_remove(dasd_debugfs_root_entry);
+}
+
+static void dasd_statistics_createroot(void)
+{
+ mode_t mode;
+ struct dentry *pde;
+
+ dasd_debugfs_root_entry = NULL;
+ dasd_debugfs_global_entry = NULL;
+ dasd_global_profile_dentry = NULL;
+ pde = debugfs_create_dir("dasd", NULL);
+ if (!pde || IS_ERR(pde))
+ goto error;
+ dasd_debugfs_root_entry = pde;
+ pde = debugfs_create_dir("global", dasd_debugfs_root_entry);
+ if (!pde || IS_ERR(pde))
+ goto error;
+ dasd_debugfs_global_entry = pde;
+
+ mode = (S_IRUSR | S_IWUSR | S_IFREG);
+ pde = debugfs_create_file("statistics", mode, dasd_debugfs_global_entry,
+ NULL, &dasd_stats_global_fops);
+ if (!pde || IS_ERR(pde))
+ goto error;
+ dasd_global_profile_dentry = pde;
+ return;
+
+error:
+ DBF_EVENT(DBF_ERR, "%s",
+ "Creation of the dasd debugfs interface failed");
+ dasd_statistics_removeroot();
+ return;
+}
+
#else
#define dasd_profile_start(block, cqr, req) do {} while (0)
#define dasd_profile_end(block, cqr, req) do {} while (0)
+
+static void dasd_statistics_createroot(void)
+{
+ return;
+}
+
+static void dasd_statistics_removeroot(void)
+{
+ return;
+}
+
+int dasd_stats_generic_show(struct seq_file *m, void *v)
+{
+ seq_printf(m, "Statistics are not activated in this kernel\n");
+ return 0;
+}
+
+static void dasd_profile_init(struct dasd_profile *profile,
+ struct dentry *base_dentry)
+{
+ return;
+}
+
+static void dasd_profile_exit(struct dasd_profile *profile)
+{
+ return;
+}
+
+int dasd_profile_on(struct dasd_profile *profile)
+{
+ return 0;
+}
+
#endif /* CONFIG_DASD_PROFILE */
/*
@@ -2441,6 +2924,7 @@ dasd_exit(void)
debug_unregister(dasd_debug_area);
dasd_debug_area = NULL;
}
+ dasd_statistics_removeroot();
}
/*
@@ -2992,6 +3476,8 @@ static int __init dasd_init(void)
dasd_diag_discipline_pointer = NULL;
+ dasd_statistics_createroot();
+
rc = dasd_devmap_init();
if (rc)
goto failed;
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index d1e4f2c1264c..1dd12bd85a69 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -382,6 +382,41 @@ struct dasd_path {
__u8 npm;
};
+struct dasd_profile_info {
+ /* legacy part of profile data, as in dasd_profile_info_t */
+ unsigned int dasd_io_reqs; /* number of requests processed */
+ unsigned int dasd_io_sects; /* number of sectors processed */
+ unsigned int dasd_io_secs[32]; /* histogram of request's sizes */
+ unsigned int dasd_io_times[32]; /* histogram of requests's times */
+ unsigned int dasd_io_timps[32]; /* h. of requests's times per sector */
+ unsigned int dasd_io_time1[32]; /* hist. of time from build to start */
+ unsigned int dasd_io_time2[32]; /* hist. of time from start to irq */
+ unsigned int dasd_io_time2ps[32]; /* hist. of time from start to irq */
+ unsigned int dasd_io_time3[32]; /* hist. of time from irq to end */
+ unsigned int dasd_io_nr_req[32]; /* hist. of # of requests in chanq */
+
+ /* new data */
+ struct timespec starttod; /* time of start or last reset */
+ unsigned int dasd_io_alias; /* requests using an alias */
+ unsigned int dasd_io_tpm; /* requests using transport mode */
+ unsigned int dasd_read_reqs; /* total number of read requests */
+ unsigned int dasd_read_sects; /* total number read sectors */
+ unsigned int dasd_read_alias; /* read request using an alias */
+ unsigned int dasd_read_tpm; /* read requests in transport mode */
+ unsigned int dasd_read_secs[32]; /* histogram of request's sizes */
+ unsigned int dasd_read_times[32]; /* histogram of requests's times */
+ unsigned int dasd_read_time1[32]; /* hist. time from build to start */
+ unsigned int dasd_read_time2[32]; /* hist. of time from start to irq */
+ unsigned int dasd_read_time3[32]; /* hist. of time from irq to end */
+ unsigned int dasd_read_nr_req[32]; /* hist. of # of requests in chanq */
+};
+
+struct dasd_profile {
+ struct dentry *dentry;
+ struct dasd_profile_info *data;
+ spinlock_t lock;
+};
+
struct dasd_device {
/* Block device stuff. */
struct dasd_block *block;
@@ -431,6 +466,9 @@ struct dasd_device {
/* default expiration time in s */
unsigned long default_expires;
+
+ struct dentry *debugfs_dentry;
+ struct dasd_profile profile;
};
struct dasd_block {
@@ -453,9 +491,8 @@ struct dasd_block {
struct tasklet_struct tasklet;
struct timer_list timer;
-#ifdef CONFIG_DASD_PROFILE
- struct dasd_profile_info_t profile;
-#endif
+ struct dentry *debugfs_dentry;
+ struct dasd_profile profile;
};
@@ -589,12 +626,13 @@ dasd_check_blocksize(int bsize)
}
/* externals in dasd.c */
-#define DASD_PROFILE_ON 1
-#define DASD_PROFILE_OFF 0
+#define DASD_PROFILE_OFF 0
+#define DASD_PROFILE_ON 1
+#define DASD_PROFILE_GLOBAL_ONLY 2
extern debug_info_t *dasd_debug_area;
-extern struct dasd_profile_info_t dasd_global_profile;
-extern unsigned int dasd_profile_level;
+extern struct dasd_profile_info dasd_global_profile_data;
+extern unsigned int dasd_global_profile_level;
extern const struct block_device_operations dasd_device_operations;
extern struct kmem_cache *dasd_page_cache;
@@ -662,6 +700,11 @@ void dasd_device_remove_stop_bits(struct dasd_device *, int);
int dasd_device_is_ro(struct dasd_device *);
+void dasd_profile_reset(struct dasd_profile *);
+int dasd_profile_on(struct dasd_profile *);
+void dasd_profile_off(struct dasd_profile *);
+void dasd_global_profile_reset(void);
+char *dasd_get_user_string(const char __user *, size_t);
/* externals in dasd_devmap.c */
extern int dasd_max_devindex;
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index 72261e4c516d..eb4e034378cd 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -239,7 +239,7 @@ dasd_ioctl_format(struct block_device *bdev, void __user *argp)
*/
static int dasd_ioctl_reset_profile(struct dasd_block *block)
{
- memset(&block->profile, 0, sizeof(struct dasd_profile_info_t));
+ dasd_profile_reset(&block->profile);
return 0;
}
@@ -248,10 +248,40 @@ static int dasd_ioctl_reset_profile(struct dasd_block *block)
*/
static int dasd_ioctl_read_profile(struct dasd_block *block, void __user *argp)
{
- if (dasd_profile_level == DASD_PROFILE_OFF)
+ struct dasd_profile_info_t *data;
+
+ data = kmalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ spin_lock_bh(&block->profile.lock);
+ if (block->profile.data) {
+ data->dasd_io_reqs = block->profile.data->dasd_io_reqs;
+ data->dasd_io_sects = block->profile.data->dasd_io_sects;
+ memcpy(data->dasd_io_secs, block->profile.data->dasd_io_secs,
+ sizeof(data->dasd_io_secs));
+ memcpy(data->dasd_io_times, block->profile.data->dasd_io_times,
+ sizeof(data->dasd_io_times));
+ memcpy(data->dasd_io_timps, block->profile.data->dasd_io_timps,
+ sizeof(data->dasd_io_timps));
+ memcpy(data->dasd_io_time1, block->profile.data->dasd_io_time1,
+ sizeof(data->dasd_io_time1));
+ memcpy(data->dasd_io_time2, block->profile.data->dasd_io_time2,
+ sizeof(data->dasd_io_time2));
+ memcpy(data->dasd_io_time2ps,
+ block->profile.data->dasd_io_time2ps,
+ sizeof(data->dasd_io_time2ps));
+ memcpy(data->dasd_io_time3, block->profile.data->dasd_io_time3,
+ sizeof(data->dasd_io_time3));
+ memcpy(data->dasd_io_nr_req,
+ block->profile.data->dasd_io_nr_req,
+ sizeof(data->dasd_io_nr_req));
+ spin_unlock_bh(&block->profile.lock);
+ } else {
+ spin_unlock_bh(&block->profile.lock);
return -EIO;
- if (copy_to_user(argp, &block->profile,
- sizeof(struct dasd_profile_info_t)))
+ }
+ if (copy_to_user(argp, data, sizeof(*data)))
return -EFAULT;
return 0;
}
diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c
index c4a6a31bd9cd..6c3c5364d082 100644
--- a/drivers/s390/block/dasd_proc.c
+++ b/drivers/s390/block/dasd_proc.c
@@ -32,28 +32,6 @@ static struct proc_dir_entry *dasd_proc_root_entry = NULL;
static struct proc_dir_entry *dasd_devices_entry = NULL;
static struct proc_dir_entry *dasd_statistics_entry = NULL;
-#ifdef CONFIG_DASD_PROFILE
-static char *
-dasd_get_user_string(const char __user *user_buf, size_t user_len)
-{
- char *buffer;
-
- buffer = kmalloc(user_len + 1, GFP_KERNEL);
- if (buffer == NULL)
- return ERR_PTR(-ENOMEM);
- if (copy_from_user(buffer, user_buf, user_len) != 0) {
- kfree(buffer);
- return ERR_PTR(-EFAULT);
- }
- /* got the string, now strip linefeed. */
- if (buffer[user_len - 1] == '\n')
- buffer[user_len - 1] = 0;
- else
- buffer[user_len] = 0;
- return buffer;
-}
-#endif /* CONFIG_DASD_PROFILE */
-
static int
dasd_devices_show(struct seq_file *m, void *v)
{
@@ -167,6 +145,55 @@ static const struct file_operations dasd_devices_file_ops = {
};
#ifdef CONFIG_DASD_PROFILE
+static int dasd_stats_all_block_on(void)
+{
+ int i, rc;
+ struct dasd_device *device;
+
+ rc = 0;
+ for (i = 0; i < dasd_max_devindex; ++i) {
+ device = dasd_device_from_devindex(i);
+ if (IS_ERR(device))
+ continue;
+ if (device->block)
+ rc = dasd_profile_on(&device->block->profile);
+ dasd_put_device(device);
+ if (rc)
+ return rc;
+ }
+ return 0;
+}
+
+static void dasd_stats_all_block_off(void)
+{
+ int i;
+ struct dasd_device *device;
+
+ for (i = 0; i < dasd_max_devindex; ++i) {
+ device = dasd_device_from_devindex(i);
+ if (IS_ERR(device))
+ continue;
+ if (device->block)
+ dasd_profile_off(&device->block->profile);
+ dasd_put_device(device);
+ }
+}
+
+static void dasd_stats_all_block_reset(void)
+{
+ int i;
+ struct dasd_device *device;
+
+ for (i = 0; i < dasd_max_devindex; ++i) {
+ device = dasd_device_from_devindex(i);
+ if (IS_ERR(device))
+ continue;
+ if (device->block)
+ dasd_profile_reset(&device->block->profile);
+ dasd_put_device(device);
+ }
+}
+
static void dasd_statistics_array(struct seq_file *m, unsigned int *array, int factor)
{
int i;
@@ -183,18 +210,18 @@ static void dasd_statistics_array(struct seq_file *m, unsigned int *array, int f
static int dasd_stats_proc_show(struct seq_file *m, void *v)
{
#ifdef CONFIG_DASD_PROFILE
- struct dasd_profile_info_t *prof;
+ struct dasd_profile_info *prof;
int factor;
/* check for active profiling */
- if (dasd_profile_level == DASD_PROFILE_OFF) {
+ if (!dasd_global_profile_level) {
seq_printf(m, "Statistics are off - they might be "
"switched on using 'echo set on > "
"/proc/dasd/statistics'\n");
return 0;
}
+ prof = &dasd_global_profile_data;
- prof = &dasd_global_profile;
/* prevent counter 'overflow' on output */
for (factor = 1; (prof->dasd_io_reqs / factor) > 9999999;
factor *= 10);
@@ -245,6 +272,7 @@ static ssize_t dasd_stats_proc_write(struct file *file,
{
#ifdef CONFIG_DASD_PROFILE
char *buffer, *str;
+ int rc;
if (user_len > 65536)
user_len = 65536;
@@ -259,32 +287,40 @@ static ssize_t dasd_stats_proc_write(struct file *file,
str = skip_spaces(str + 4);
if (strcmp(str, "on") == 0) {
/* switch on statistics profiling */
- dasd_profile_level = DASD_PROFILE_ON;
+ rc = dasd_stats_all_block_on();
+ if (rc) {
+ dasd_stats_all_block_off();
+ goto out_error;
+ }
+ dasd_global_profile_reset();
+ dasd_global_profile_level = DASD_PROFILE_ON;
pr_info("The statistics feature has been switched "
"on\n");
} else if (strcmp(str, "off") == 0) {
/* switch off and reset statistics profiling */
- memset(&dasd_global_profile,
- 0, sizeof (struct dasd_profile_info_t));
- dasd_profile_level = DASD_PROFILE_OFF;
+ dasd_global_profile_level = DASD_PROFILE_OFF;
+ dasd_global_profile_reset();
+ dasd_stats_all_block_off();
pr_info("The statistics feature has been switched "
"off\n");
} else
- goto out_error;
+ goto out_parse_error;
} else if (strncmp(str, "reset", 5) == 0) {
/* reset the statistics */
- memset(&dasd_global_profile, 0,
- sizeof (struct dasd_profile_info_t));
+ dasd_global_profile_reset();
+ dasd_stats_all_block_reset();
pr_info("The statistics have been reset\n");
} else
- goto out_error;
+ goto out_parse_error;
kfree(buffer);
return user_len;
-out_error:
+out_parse_error:
+ rc = -EINVAL;
pr_warning("%s is not a supported value for /proc/dasd/statistics\n",
str);
+out_error:
kfree(buffer);
- return -EINVAL;
+ return rc;
#else
pr_warning("/proc/dasd/statistics: is not activated in this kernel\n");
return user_len;
diff --git a/drivers/s390/char/Kconfig b/drivers/s390/char/Kconfig
index a4f117d9fdc6..2c9a776bd63c 100644
--- a/drivers/s390/char/Kconfig
+++ b/drivers/s390/char/Kconfig
@@ -116,9 +116,6 @@ config S390_TAPE
called tape390 and include all selected interfaces and
hardware drivers.
-comment "S/390 tape interface support"
- depends on S390_TAPE
-
comment "S/390 tape hardware support"
depends on S390_TAPE
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
index 5c4e741d8221..68be6e157126 100644
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -95,9 +95,11 @@ void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr)
}
}
-static inline u32 shared_ind_set(void)
+static inline u32 clear_shared_ind(void)
{
- return q_indicators[TIQDIO_SHARED_IND].ind;
+ if (!atomic_read(&q_indicators[TIQDIO_SHARED_IND].count))
+ return 0;
+ return xchg(&q_indicators[TIQDIO_SHARED_IND].ind, 0);
}
/**
@@ -107,7 +109,7 @@ static inline u32 shared_ind_set(void)
*/
static void tiqdio_thinint_handler(void *alsi, void *data)
{
- u32 si_used = shared_ind_set();
+ u32 si_used = clear_shared_ind();
struct qdio_q *q;
last_ai_time = S390_lowcore.int_clock;
@@ -150,13 +152,6 @@ static void tiqdio_thinint_handler(void *alsi, void *data)
qperf_inc(q, adapter_int);
}
rcu_read_unlock();
-
- /*
- * If the shared indicator was used clear it now after all queues
- * were processed.
- */
- if (si_used && shared_ind_set())
- xchg(&q_indicators[TIQDIO_SHARED_IND].ind, 0);
}
static int set_subchannel_ind(struct qdio_irq *irq_ptr, int reset)
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 16e4a25596e7..f8134a44cefa 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -6,6 +6,7 @@
* Martin Schwidefsky <schwidefsky@de.ibm.com>
* Ralph Wuerthner <rwuerthn@de.ibm.com>
* Felix Beck <felix.beck@de.ibm.com>
+ * Holger Dengler <hd@linux.vnet.ibm.com>
*
* Adjunct processor bus.
*
@@ -222,47 +223,52 @@ ap_queue_interruption_control(ap_qid_t qid, void *ind)
}
#endif
-static inline struct ap_queue_status __ap_4096_commands_available(ap_qid_t qid,
- int *support)
+#ifdef CONFIG_64BIT
+static inline struct ap_queue_status
+__ap_query_functions(ap_qid_t qid, unsigned int *functions)
{
register unsigned long reg0 asm ("0") = 0UL | qid | (1UL << 23);
- register struct ap_queue_status reg1 asm ("1");
- register unsigned long reg2 asm ("2") = 0UL;
+ register struct ap_queue_status reg1 asm ("1") = AP_QUEUE_STATUS_INVALID;
+ register unsigned long reg2 asm ("2");
asm volatile(
".long 0xb2af0000\n"
- "0: la %1,0\n"
- "1:\n"
- EX_TABLE(0b, 1b)
- : "+d" (reg0), "=d" (reg1), "=d" (reg2)
+ "0:\n"
+ EX_TABLE(0b, 0b)
+ : "+d" (reg0), "+d" (reg1), "=d" (reg2)
:
: "cc");
- if (reg2 & 0x6000000000000000ULL)
- *support = 1;
- else
- *support = 0;
-
+ *functions = (unsigned int)(reg2 >> 32);
return reg1;
}
+#endif
/**
- * ap_4096_commands_availablen(): Check for availability of 4096 bit RSA
- * support.
+ * ap_query_functions(): Query supported functions.
* @qid: The AP queue number
+ * @functions: Pointer to functions field.
*
- * Returns 1 if 4096 bit RSA keys are support fo the AP, returns 0 if not.
+ * Returns
+ * 0 on success.
+ * -ENODEV if queue not valid.
+ * -EBUSY if device busy.
+ * -EINVAL if query function is not supported
*/
-int ap_4096_commands_available(ap_qid_t qid)
+static int ap_query_functions(ap_qid_t qid, unsigned int *functions)
{
+#ifdef CONFIG_64BIT
struct ap_queue_status status;
- int i, support = 0;
- status = __ap_4096_commands_available(qid, &support);
+ int i;
+ status = __ap_query_functions(qid, functions);
for (i = 0; i < AP_MAX_RESET; i++) {
+ if (ap_queue_status_invalid_test(&status))
+ return -ENODEV;
+
switch (status.response_code) {
case AP_RESPONSE_NORMAL:
- return support;
+ return 0;
case AP_RESPONSE_RESET_IN_PROGRESS:
case AP_RESPONSE_BUSY:
break;
@@ -270,7 +276,7 @@ int ap_4096_commands_available(ap_qid_t qid)
case AP_RESPONSE_DECONFIGURED:
case AP_RESPONSE_CHECKSTOPPED:
case AP_RESPONSE_INVALID_ADDRESS:
- return 0;
+ return -ENODEV;
case AP_RESPONSE_OTHERWISE_CHANGED:
break;
default:
@@ -278,10 +284,31 @@ int ap_4096_commands_available(ap_qid_t qid)
}
if (i < AP_MAX_RESET - 1) {
udelay(5);
- status = __ap_4096_commands_available(qid, &support);
+ status = __ap_query_functions(qid, functions);
}
}
- return support;
+ return -EBUSY;
+#else
+ return -EINVAL;
+#endif
+}
+
+/**
+ * ap_4096_commands_availablen(): Check for availability of 4096 bit RSA
+ * support.
+ * @qid: The AP queue number
+ *
+ * Returns 1 if 4096 bit RSA keys are support fo the AP, returns 0 if not.
+ */
+int ap_4096_commands_available(ap_qid_t qid)
+{
+ unsigned int functions;
+
+ if (ap_query_functions(qid, &functions))
+ return 0;
+
+ return test_ap_facility(functions, 1) &&
+ test_ap_facility(functions, 2);
}
EXPORT_SYMBOL(ap_4096_commands_available);
@@ -1135,6 +1162,7 @@ static void ap_scan_bus(struct work_struct *unused)
struct device *dev;
ap_qid_t qid;
int queue_depth, device_type;
+ unsigned int device_functions;
int rc, i;
if (ap_select_domain() != 0)
@@ -1183,14 +1211,30 @@ static void ap_scan_bus(struct work_struct *unused)
INIT_LIST_HEAD(&ap_dev->list);
setup_timer(&ap_dev->timeout, ap_request_timeout,
(unsigned long) ap_dev);
- if (device_type == 0) {
+ switch (device_type) {
+ case 0:
if (ap_probe_device_type(ap_dev)) {
kfree(ap_dev);
continue;
}
- }
- else
+ break;
+ case 10:
+ if (ap_query_functions(qid, &device_functions)) {
+ kfree(ap_dev);
+ continue;
+ }
+ if (test_ap_facility(device_functions, 3))
+ ap_dev->device_type = AP_DEVICE_TYPE_CEX3C;
+ else if (test_ap_facility(device_functions, 4))
+ ap_dev->device_type = AP_DEVICE_TYPE_CEX3A;
+ else {
+ kfree(ap_dev);
+ continue;
+ }
+ break;
+ default:
ap_dev->device_type = device_type;
+ }
ap_dev->device.bus = &ap_bus_type;
ap_dev->device.parent = ap_root_device;
diff --git a/drivers/s390/crypto/ap_bus.h b/drivers/s390/crypto/ap_bus.h
index 08b9738285b4..d960a6309eec 100644
--- a/drivers/s390/crypto/ap_bus.h
+++ b/drivers/s390/crypto/ap_bus.h
@@ -6,6 +6,7 @@
* Martin Schwidefsky <schwidefsky@de.ibm.com>
* Ralph Wuerthner <rwuerthn@de.ibm.com>
* Felix Beck <felix.beck@de.ibm.com>
+ * Holger Dengler <hd@linux.vnet.ibm.com>
*
* Adjunct processor bus header file.
*
@@ -72,7 +73,26 @@ struct ap_queue_status {
unsigned int int_enabled : 1;
unsigned int response_code : 8;
unsigned int pad2 : 16;
-};
+} __packed;
+
+#define AP_QUEUE_STATUS_INVALID \
+ { 1, 1, 1, 0xF, 1, 0xFF, 0xFFFF }
+
+static inline
+int ap_queue_status_invalid_test(struct ap_queue_status *status)
+{
+ struct ap_queue_status invalid = AP_QUEUE_STATUS_INVALID;
+ return !(memcmp(status, &invalid, sizeof(struct ap_queue_status)));
+}
+
+#define MAX_AP_FACILITY 31
+
+static inline int test_ap_facility(unsigned int function, unsigned int nr)
+{
+ if (nr > MAX_AP_FACILITY)
+ return 0;
+ return function & (unsigned int)(0x80000000 >> nr);
+}
#define AP_RESPONSE_NORMAL 0x00
#define AP_RESPONSE_Q_NOT_AVAIL 0x01
diff --git a/mm/rmap.c b/mm/rmap.c
index 2540a39eea4a..9701574bb67a 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -869,11 +869,11 @@ int page_referenced(struct page *page,
vm_flags);
if (we_locked)
unlock_page(page);
+
+ if (page_test_and_clear_young(page_to_pfn(page)))
+ referenced++;
}
out:
- if (page_test_and_clear_young(page_to_pfn(page)))
- referenced++;
-
return referenced;
}
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index 7f9124914b13..f2b713847b45 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -1988,12 +1988,13 @@ static int __init iucv_init(void)
rc = -EPROTONOSUPPORT;
goto out;
}
+ ctl_set_bit(0, 1);
rc = iucv_query_maxconn();
if (rc)
- goto out;
+ goto out_ctl;
rc = register_external_interrupt(0x4000, iucv_external_interrupt);
if (rc)
- goto out;
+ goto out_ctl;
iucv_root = root_device_register("iucv");
if (IS_ERR(iucv_root)) {
rc = PTR_ERR(iucv_root);
@@ -2055,6 +2056,8 @@ out_free:
root_device_unregister(iucv_root);
out_int:
unregister_external_interrupt(0x4000, iucv_external_interrupt);
+out_ctl:
+ ctl_clear_bit(0, 1);
out:
return rc;
}