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Diffstat (limited to 'arch/um/kernel/skas/tlb.c')
-rw-r--r--arch/um/kernel/skas/tlb.c28
1 files changed, 18 insertions, 10 deletions
diff --git a/arch/um/kernel/skas/tlb.c b/arch/um/kernel/skas/tlb.c
index 18f9a7711de1..6230999c672c 100644
--- a/arch/um/kernel/skas/tlb.c
+++ b/arch/um/kernel/skas/tlb.c
@@ -6,6 +6,7 @@
#include "linux/stddef.h"
#include "linux/sched.h"
+#include "linux/config.h"
#include "linux/mm.h"
#include "asm/page.h"
#include "asm/pgtable.h"
@@ -17,7 +18,7 @@
#include "os.h"
#include "tlb.h"
-static void do_ops(int fd, struct host_vm_op *ops, int last)
+static void do_ops(union mm_context *mmu, struct host_vm_op *ops, int last)
{
struct host_vm_op *op;
int i;
@@ -26,18 +27,18 @@ static void do_ops(int fd, struct host_vm_op *ops, int last)
op = &ops[i];
switch(op->type){
case MMAP:
- map(fd, op->u.mmap.addr, op->u.mmap.len,
+ map(&mmu->skas.id, op->u.mmap.addr, op->u.mmap.len,
op->u.mmap.r, op->u.mmap.w, op->u.mmap.x,
op->u.mmap.fd, op->u.mmap.offset);
break;
case MUNMAP:
- unmap(fd, (void *) op->u.munmap.addr,
+ unmap(&mmu->skas.id, (void *) op->u.munmap.addr,
op->u.munmap.len);
break;
case MPROTECT:
- protect(fd, op->u.mprotect.addr, op->u.mprotect.len,
- op->u.mprotect.r, op->u.mprotect.w,
- op->u.mprotect.x);
+ protect(&mmu->skas.id, op->u.mprotect.addr,
+ op->u.mprotect.len, op->u.mprotect.r,
+ op->u.mprotect.w, op->u.mprotect.x);
break;
default:
printk("Unknown op type %d in do_ops\n", op->type);
@@ -46,12 +47,15 @@ static void do_ops(int fd, struct host_vm_op *ops, int last)
}
}
+extern int proc_mm;
+
static void fix_range(struct mm_struct *mm, unsigned long start_addr,
unsigned long end_addr, int force)
{
- int fd = mm->context.skas.mm_fd;
+ if(!proc_mm && (end_addr > CONFIG_STUB_START))
+ end_addr = CONFIG_STUB_START;
- fix_range_common(mm, start_addr, end_addr, force, fd, do_ops);
+ fix_range_common(mm, start_addr, end_addr, force, do_ops);
}
void __flush_tlb_one_skas(unsigned long addr)
@@ -69,16 +73,20 @@ void flush_tlb_range_skas(struct vm_area_struct *vma, unsigned long start,
void flush_tlb_mm_skas(struct mm_struct *mm)
{
+ unsigned long end;
+
/* Don't bother flushing if this address space is about to be
* destroyed.
*/
if(atomic_read(&mm->mm_users) == 0)
return;
- fix_range(mm, 0, host_task_size, 0);
+ end = proc_mm ? task_size : CONFIG_STUB_START;
+ fix_range(mm, 0, end, 0);
}
void force_flush_all_skas(void)
{
- fix_range(current->mm, 0, host_task_size, 1);
+ unsigned long end = proc_mm ? task_size : CONFIG_STUB_START;
+ fix_range(current->mm, 0, end, 1);
}