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-rw-r--r--include/uapi/linux/input-event-codes.h4
-rw-r--r--include/uapi/linux/io_uring.h3
-rw-r--r--include/uapi/linux/kvm.h19
-rw-r--r--include/uapi/linux/netfilter/nf_conntrack_common.h4
-rw-r--r--include/uapi/linux/pci_regs.h2
-rw-r--r--include/uapi/linux/prctl.h37
-rw-r--r--include/uapi/linux/rseq.h26
7 files changed, 62 insertions, 33 deletions
diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index 4bdb6a165987..3528168f7c6d 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -643,6 +643,10 @@
#define KEY_EPRIVACY_SCREEN_ON 0x252
#define KEY_EPRIVACY_SCREEN_OFF 0x253
+#define KEY_ACTION_ON_SELECTION 0x254 /* AL Action on Selection (HUTRR119) */
+#define KEY_CONTEXTUAL_INSERT 0x255 /* AL Contextual Insertion (HUTRR119) */
+#define KEY_CONTEXTUAL_QUERY 0x256 /* AL Contextual Query (HUTRR119) */
+
#define KEY_KBDINPUTASSIST_PREV 0x260
#define KEY_KBDINPUTASSIST_NEXT 0x261
#define KEY_KBDINPUTASSIST_PREVGROUP 0x262
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
index 6750c383a2ab..1ff16141c8a5 100644
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -188,7 +188,8 @@ enum io_uring_sqe_flags_bit {
/*
* If COOP_TASKRUN is set, get notified if task work is available for
* running and a kernel transition would be needed to run it. This sets
- * IORING_SQ_TASKRUN in the sq ring flags. Not valid with COOP_TASKRUN.
+ * IORING_SQ_TASKRUN in the sq ring flags. Not valid without COOP_TASKRUN
+ * or DEFER_TASKRUN.
*/
#define IORING_SETUP_TASKRUN_FLAG (1U << 9)
#define IORING_SETUP_SQE128 (1U << 10) /* SQEs are 128 byte */
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 65500f5db379..3f0d8d3c3daf 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -11,9 +11,14 @@
#include <linux/const.h>
#include <linux/types.h>
#include <linux/compiler.h>
+#include <linux/stddef.h>
#include <linux/ioctl.h>
#include <asm/kvm.h>
+#ifdef __KERNEL__
+#include <linux/kvm_types.h>
+#endif
+
#define KVM_API_VERSION 12
/*
@@ -538,7 +543,7 @@ struct kvm_coalesced_mmio {
struct kvm_coalesced_mmio_ring {
__u32 first, last;
- struct kvm_coalesced_mmio coalesced_mmio[];
+ __DECLARE_FLEX_ARRAY(struct kvm_coalesced_mmio, coalesced_mmio);
};
#define KVM_COALESCED_MMIO_MAX \
@@ -588,7 +593,7 @@ struct kvm_clear_dirty_log {
/* for KVM_SET_SIGNAL_MASK */
struct kvm_signal_mask {
__u32 len;
- __u8 sigset[];
+ __DECLARE_FLEX_ARRAY(__u8, sigset);
};
/* for KVM_TPR_ACCESS_REPORTING */
@@ -1047,7 +1052,7 @@ struct kvm_irq_routing_entry {
struct kvm_irq_routing {
__u32 nr;
__u32 flags;
- struct kvm_irq_routing_entry entries[];
+ __DECLARE_FLEX_ARRAY(struct kvm_irq_routing_entry, entries);
};
#define KVM_IRQFD_FLAG_DEASSIGN (1 << 0)
@@ -1138,7 +1143,7 @@ struct kvm_dirty_tlb {
struct kvm_reg_list {
__u64 n; /* number of regs */
- __u64 reg[];
+ __DECLARE_FLEX_ARRAY(__u64, reg);
};
struct kvm_one_reg {
@@ -1601,7 +1606,11 @@ struct kvm_stats_desc {
__u16 size;
__u32 offset;
__u32 bucket_size;
- char name[];
+#ifdef __KERNEL__
+ char name[KVM_STATS_NAME_SIZE];
+#else
+ __DECLARE_FLEX_ARRAY(char, name);
+#endif
};
#define KVM_GET_STATS_FD _IO(KVMIO, 0xce)
diff --git a/include/uapi/linux/netfilter/nf_conntrack_common.h b/include/uapi/linux/netfilter/nf_conntrack_common.h
index 26071021e986..56b6b60a814f 100644
--- a/include/uapi/linux/netfilter/nf_conntrack_common.h
+++ b/include/uapi/linux/netfilter/nf_conntrack_common.h
@@ -159,5 +159,9 @@ enum ip_conntrack_expect_events {
#define NF_CT_EXPECT_INACTIVE 0x2
#define NF_CT_EXPECT_USERSPACE 0x4
+#ifdef __KERNEL__
+#define NF_CT_EXPECT_MASK (NF_CT_EXPECT_PERMANENT | NF_CT_EXPECT_INACTIVE | \
+ NF_CT_EXPECT_USERSPACE)
+#endif
#endif /* _UAPI_NF_CONNTRACK_COMMON_H */
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index ec1c54b5a310..14f634ab9350 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -712,7 +712,7 @@
#define PCI_EXP_LNKCTL2_HASD 0x0020 /* HW Autonomous Speed Disable */
#define PCI_EXP_LNKSTA2 0x32 /* Link Status 2 */
#define PCI_EXP_LNKSTA2_FLIT 0x0400 /* Flit Mode Status */
-#define PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 0x32 /* end of v2 EPs w/ link */
+#define PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 0x34 /* end of v2 EPs w/ link */
#define PCI_EXP_SLTCAP2 0x34 /* Slot Capabilities 2 */
#define PCI_EXP_SLTCAP2_IBPD 0x00000001 /* In-band PD Disable Supported */
#define PCI_EXP_SLTCTL2 0x38 /* Slot Control 2 */
diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h
index 55b0446fff9d..b6ec6f693719 100644
--- a/include/uapi/linux/prctl.h
+++ b/include/uapi/linux/prctl.h
@@ -397,30 +397,23 @@ struct prctl_mm_map {
# define PR_RSEQ_SLICE_EXT_ENABLE 0x01
/*
- * Get the current indirect branch tracking configuration for the current
- * thread, this will be the value configured via PR_SET_INDIR_BR_LP_STATUS.
+ * Get or set the control flow integrity (CFI) configuration for the
+ * current thread.
+ *
+ * Some per-thread control flow integrity settings are not yet
+ * controlled through this prctl(); see for example
+ * PR_{GET,SET,LOCK}_SHADOW_STACK_STATUS
*/
-#define PR_GET_INDIR_BR_LP_STATUS 80
-
+#define PR_GET_CFI 80
+#define PR_SET_CFI 81
/*
- * Set the indirect branch tracking configuration. PR_INDIR_BR_LP_ENABLE will
- * enable cpu feature for user thread, to track all indirect branches and ensure
- * they land on arch defined landing pad instruction.
- * x86 - If enabled, an indirect branch must land on an ENDBRANCH instruction.
- * arch64 - If enabled, an indirect branch must land on a BTI instruction.
- * riscv - If enabled, an indirect branch must land on an lpad instruction.
- * PR_INDIR_BR_LP_DISABLE will disable feature for user thread and indirect
- * branches will no more be tracked by cpu to land on arch defined landing pad
- * instruction.
- */
-#define PR_SET_INDIR_BR_LP_STATUS 81
-# define PR_INDIR_BR_LP_ENABLE (1UL << 0)
-
-/*
- * Prevent further changes to the specified indirect branch tracking
- * configuration. All bits may be locked via this call, including
- * undefined bits.
+ * Forward-edge CFI variants (excluding ARM64 BTI, which has its own
+ * prctl()s).
*/
-#define PR_LOCK_INDIR_BR_LP_STATUS 82
+#define PR_CFI_BRANCH_LANDING_PADS 0
+/* Return and control values for PR_{GET,SET}_CFI */
+# define PR_CFI_ENABLE _BITUL(0)
+# define PR_CFI_DISABLE _BITUL(1)
+# define PR_CFI_LOCK _BITUL(2)
#endif /* _LINUX_PRCTL_H */
diff --git a/include/uapi/linux/rseq.h b/include/uapi/linux/rseq.h
index 863c4a00a66b..f69344fe6c08 100644
--- a/include/uapi/linux/rseq.h
+++ b/include/uapi/linux/rseq.h
@@ -87,10 +87,17 @@ struct rseq_slice_ctrl {
};
/*
- * struct rseq is aligned on 4 * 8 bytes to ensure it is always
- * contained within a single cache-line.
+ * The original size and alignment of the allocation for struct rseq is
+ * 32 bytes.
*
- * A single struct rseq per thread is allowed.
+ * The allocation size needs to be greater or equal to
+ * max(getauxval(AT_RSEQ_FEATURE_SIZE), 32), and the allocation needs to
+ * be aligned on max(getauxval(AT_RSEQ_ALIGN), 32).
+ *
+ * As an alternative, userspace is allowed to use both the original size
+ * and alignment of 32 bytes for backward compatibility.
+ *
+ * A single active struct rseq registration per thread is allowed.
*/
struct rseq {
/*
@@ -181,9 +188,20 @@ struct rseq {
struct rseq_slice_ctrl slice_ctrl;
/*
+ * Before rseq became extensible, its original size was 32 bytes even
+ * though the active rseq area was only 20 bytes.
+ * Exposing a 32 bytes feature size would make life needlessly painful
+ * for userspace. Therefore, add a reserved byte after byte 32
+ * to bump the rseq feature size from 32 to 33.
+ * The next field to be added to the rseq area will be larger
+ * than one byte, and will replace this reserved byte.
+ */
+ __u8 __reserved;
+
+ /*
* Flexible array member at end of structure, after last feature field.
*/
char end[];
-} __attribute__((aligned(4 * sizeof(__u64))));
+} __attribute__((aligned(32)));
#endif /* _UAPI_LINUX_RSEQ_H */