tools/include: Sync kernel ABI headers with tooling headers

Sync (copy) the following v4.12 kernel headers to the tooling headers:

  arch/x86/include/asm/disabled-features.h:
  arch/x86/include/uapi/asm/kvm.h:
  arch/powerpc/include/uapi/asm/kvm.h:
  arch/s390/include/uapi/asm/kvm.h:
  arch/arm/include/uapi/asm/kvm.h:
  arch/arm64/include/uapi/asm/kvm.h:

   - 'struct kvm_sync_regs' got changed in an ABI-incompatible way,
     fortunately none of the (in-kernel) tooling relied on it

   - new KVM_DEV calls added

  arch/x86/include/asm/required-features.h:

   - 5-level paging hardware ABI detail added

  arch/x86/include/asm/cpufeatures.h:

   - new CPU feature added

  arch/x86/include/uapi/asm/vmx.h:

   - new VMX exit conditions

None of the changes requires fixes in the tooling source code.

This addresses the following warnings:

  Warning: include/uapi/linux/stat.h differs from kernel
  Warning: arch/x86/include/asm/disabled-features.h differs from kernel
  Warning: arch/x86/include/asm/required-features.h differs from kernel
  Warning: arch/x86/include/asm/cpufeatures.h differs from kernel
  Warning: arch/x86/include/uapi/asm/kvm.h differs from kernel
  Warning: arch/x86/include/uapi/asm/vmx.h differs from kernel
  Warning: arch/powerpc/include/uapi/asm/kvm.h differs from kernel
  Warning: arch/s390/include/uapi/asm/kvm.h differs from kernel
  Warning: arch/arm/include/uapi/asm/kvm.h differs from kernel
  Warning: arch/arm64/include/uapi/asm/kvm.h differs from kernel

Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Yao Jin <yao.jin@linux.intel.com>
Cc: kernel-team@lge.com
Link: http://lkml.kernel.org/r/20170524065721.j2mlch6bgk5klgbc@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2017-05-24 08:57:21 +02:00
parent 7111ffff60
commit 6e30437bd4
10 changed files with 85 additions and 20 deletions

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@ -27,6 +27,8 @@
#define __KVM_HAVE_IRQ_LINE #define __KVM_HAVE_IRQ_LINE
#define __KVM_HAVE_READONLY_MEM #define __KVM_HAVE_READONLY_MEM
#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
#define KVM_REG_SIZE(id) \ #define KVM_REG_SIZE(id) \
(1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT)) (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
@ -114,6 +116,8 @@ struct kvm_debug_exit_arch {
}; };
struct kvm_sync_regs { struct kvm_sync_regs {
/* Used with KVM_CAP_ARM_USER_IRQ */
__u64 device_irq_level;
}; };
struct kvm_arch_memory_slot { struct kvm_arch_memory_slot {
@ -192,13 +196,17 @@ struct kvm_arch_memory_slot {
#define KVM_DEV_ARM_VGIC_GRP_REDIST_REGS 5 #define KVM_DEV_ARM_VGIC_GRP_REDIST_REGS 5
#define KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS 6 #define KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS 6
#define KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO 7 #define KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO 7
#define KVM_DEV_ARM_VGIC_GRP_ITS_REGS 8
#define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT 10 #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT 10
#define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_MASK \ #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_MASK \
(0x3fffffULL << KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT) (0x3fffffULL << KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT)
#define KVM_DEV_ARM_VGIC_LINE_LEVEL_INTID_MASK 0x3ff #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INTID_MASK 0x3ff
#define VGIC_LEVEL_INFO_LINE_LEVEL 0 #define VGIC_LEVEL_INFO_LINE_LEVEL 0
#define KVM_DEV_ARM_VGIC_CTRL_INIT 0 #define KVM_DEV_ARM_VGIC_CTRL_INIT 0
#define KVM_DEV_ARM_ITS_SAVE_TABLES 1
#define KVM_DEV_ARM_ITS_RESTORE_TABLES 2
#define KVM_DEV_ARM_VGIC_SAVE_PENDING_TABLES 3
/* KVM_IRQ_LINE irq field index values */ /* KVM_IRQ_LINE irq field index values */
#define KVM_ARM_IRQ_TYPE_SHIFT 24 #define KVM_ARM_IRQ_TYPE_SHIFT 24

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@ -39,6 +39,8 @@
#define __KVM_HAVE_IRQ_LINE #define __KVM_HAVE_IRQ_LINE
#define __KVM_HAVE_READONLY_MEM #define __KVM_HAVE_READONLY_MEM
#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
#define KVM_REG_SIZE(id) \ #define KVM_REG_SIZE(id) \
(1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT)) (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
@ -143,6 +145,8 @@ struct kvm_debug_exit_arch {
#define KVM_GUESTDBG_USE_HW (1 << 17) #define KVM_GUESTDBG_USE_HW (1 << 17)
struct kvm_sync_regs { struct kvm_sync_regs {
/* Used with KVM_CAP_ARM_USER_IRQ */
__u64 device_irq_level;
}; };
struct kvm_arch_memory_slot { struct kvm_arch_memory_slot {
@ -212,13 +216,17 @@ struct kvm_arch_memory_slot {
#define KVM_DEV_ARM_VGIC_GRP_REDIST_REGS 5 #define KVM_DEV_ARM_VGIC_GRP_REDIST_REGS 5
#define KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS 6 #define KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS 6
#define KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO 7 #define KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO 7
#define KVM_DEV_ARM_VGIC_GRP_ITS_REGS 8
#define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT 10 #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT 10
#define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_MASK \ #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_MASK \
(0x3fffffULL << KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT) (0x3fffffULL << KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT)
#define KVM_DEV_ARM_VGIC_LINE_LEVEL_INTID_MASK 0x3ff #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INTID_MASK 0x3ff
#define VGIC_LEVEL_INFO_LINE_LEVEL 0 #define VGIC_LEVEL_INFO_LINE_LEVEL 0
#define KVM_DEV_ARM_VGIC_CTRL_INIT 0 #define KVM_DEV_ARM_VGIC_CTRL_INIT 0
#define KVM_DEV_ARM_ITS_SAVE_TABLES 1
#define KVM_DEV_ARM_ITS_RESTORE_TABLES 2
#define KVM_DEV_ARM_VGIC_SAVE_PENDING_TABLES 3
/* Device Control API on vcpu fd */ /* Device Control API on vcpu fd */
#define KVM_ARM_VCPU_PMU_V3_CTRL 0 #define KVM_ARM_VCPU_PMU_V3_CTRL 0

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@ -29,6 +29,9 @@
#define __KVM_HAVE_IRQ_LINE #define __KVM_HAVE_IRQ_LINE
#define __KVM_HAVE_GUEST_DEBUG #define __KVM_HAVE_GUEST_DEBUG
/* Not always available, but if it is, this is the correct offset. */
#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
struct kvm_regs { struct kvm_regs {
__u64 pc; __u64 pc;
__u64 cr; __u64 cr;

View File

@ -26,6 +26,8 @@
#define KVM_DEV_FLIC_ADAPTER_REGISTER 6 #define KVM_DEV_FLIC_ADAPTER_REGISTER 6
#define KVM_DEV_FLIC_ADAPTER_MODIFY 7 #define KVM_DEV_FLIC_ADAPTER_MODIFY 7
#define KVM_DEV_FLIC_CLEAR_IO_IRQ 8 #define KVM_DEV_FLIC_CLEAR_IO_IRQ 8
#define KVM_DEV_FLIC_AISM 9
#define KVM_DEV_FLIC_AIRQ_INJECT 10
/* /*
* We can have up to 4*64k pending subchannels + 8 adapter interrupts, * We can have up to 4*64k pending subchannels + 8 adapter interrupts,
* as well as up to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts. * as well as up to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.
@ -41,7 +43,14 @@ struct kvm_s390_io_adapter {
__u8 isc; __u8 isc;
__u8 maskable; __u8 maskable;
__u8 swap; __u8 swap;
__u8 pad; __u8 flags;
};
#define KVM_S390_ADAPTER_SUPPRESSIBLE 0x01
struct kvm_s390_ais_req {
__u8 isc;
__u16 mode;
}; };
#define KVM_S390_IO_ADAPTER_MASK 1 #define KVM_S390_IO_ADAPTER_MASK 1
@ -110,6 +119,7 @@ struct kvm_s390_vm_cpu_machine {
#define KVM_S390_VM_CPU_FEAT_CMMA 10 #define KVM_S390_VM_CPU_FEAT_CMMA 10
#define KVM_S390_VM_CPU_FEAT_PFMFI 11 #define KVM_S390_VM_CPU_FEAT_PFMFI 11
#define KVM_S390_VM_CPU_FEAT_SIGPIF 12 #define KVM_S390_VM_CPU_FEAT_SIGPIF 12
#define KVM_S390_VM_CPU_FEAT_KSS 13
struct kvm_s390_vm_cpu_feat { struct kvm_s390_vm_cpu_feat {
__u64 feat[16]; __u64 feat[16];
}; };
@ -198,6 +208,10 @@ struct kvm_guest_debug_arch {
#define KVM_SYNC_VRS (1UL << 6) #define KVM_SYNC_VRS (1UL << 6)
#define KVM_SYNC_RICCB (1UL << 7) #define KVM_SYNC_RICCB (1UL << 7)
#define KVM_SYNC_FPRS (1UL << 8) #define KVM_SYNC_FPRS (1UL << 8)
#define KVM_SYNC_GSCB (1UL << 9)
/* length and alignment of the sdnx as a power of two */
#define SDNXC 8
#define SDNXL (1UL << SDNXC)
/* definition of registers in kvm_run */ /* definition of registers in kvm_run */
struct kvm_sync_regs { struct kvm_sync_regs {
__u64 prefix; /* prefix register */ __u64 prefix; /* prefix register */
@ -218,8 +232,16 @@ struct kvm_sync_regs {
}; };
__u8 reserved[512]; /* for future vector expansion */ __u8 reserved[512]; /* for future vector expansion */
__u32 fpc; /* valid on KVM_SYNC_VRS or KVM_SYNC_FPRS */ __u32 fpc; /* valid on KVM_SYNC_VRS or KVM_SYNC_FPRS */
__u8 padding[52]; /* riccb needs to be 64byte aligned */ __u8 padding1[52]; /* riccb needs to be 64byte aligned */
__u8 riccb[64]; /* runtime instrumentation controls block */ __u8 riccb[64]; /* runtime instrumentation controls block */
__u8 padding2[192]; /* sdnx needs to be 256byte aligned */
union {
__u8 sdnx[SDNXL]; /* state description annex */
struct {
__u64 reserved1[2];
__u64 gscb[4];
};
};
}; };
#define KVM_REG_S390_TODPR (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1) #define KVM_REG_S390_TODPR (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)

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@ -202,6 +202,8 @@
#define X86_FEATURE_AVX512_4VNNIW (7*32+16) /* AVX-512 Neural Network Instructions */ #define X86_FEATURE_AVX512_4VNNIW (7*32+16) /* AVX-512 Neural Network Instructions */
#define X86_FEATURE_AVX512_4FMAPS (7*32+17) /* AVX-512 Multiply Accumulation Single precision */ #define X86_FEATURE_AVX512_4FMAPS (7*32+17) /* AVX-512 Multiply Accumulation Single precision */
#define X86_FEATURE_MBA ( 7*32+18) /* Memory Bandwidth Allocation */
/* Virtualization flags: Linux defined, word 8 */ /* Virtualization flags: Linux defined, word 8 */
#define X86_FEATURE_TPR_SHADOW ( 8*32+ 0) /* Intel TPR Shadow */ #define X86_FEATURE_TPR_SHADOW ( 8*32+ 0) /* Intel TPR Shadow */
#define X86_FEATURE_VNMI ( 8*32+ 1) /* Intel Virtual NMI */ #define X86_FEATURE_VNMI ( 8*32+ 1) /* Intel Virtual NMI */

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@ -36,6 +36,12 @@
# define DISABLE_OSPKE (1<<(X86_FEATURE_OSPKE & 31)) # define DISABLE_OSPKE (1<<(X86_FEATURE_OSPKE & 31))
#endif /* CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS */ #endif /* CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS */
#ifdef CONFIG_X86_5LEVEL
# define DISABLE_LA57 0
#else
# define DISABLE_LA57 (1<<(X86_FEATURE_LA57 & 31))
#endif
/* /*
* Make sure to add features to the correct mask * Make sure to add features to the correct mask
*/ */
@ -55,7 +61,7 @@
#define DISABLED_MASK13 0 #define DISABLED_MASK13 0
#define DISABLED_MASK14 0 #define DISABLED_MASK14 0
#define DISABLED_MASK15 0 #define DISABLED_MASK15 0
#define DISABLED_MASK16 (DISABLE_PKU|DISABLE_OSPKE) #define DISABLED_MASK16 (DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57)
#define DISABLED_MASK17 0 #define DISABLED_MASK17 0
#define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 18) #define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 18)

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@ -53,6 +53,12 @@
# define NEED_MOVBE 0 # define NEED_MOVBE 0
#endif #endif
#ifdef CONFIG_X86_5LEVEL
# define NEED_LA57 (1<<(X86_FEATURE_LA57 & 31))
#else
# define NEED_LA57 0
#endif
#ifdef CONFIG_X86_64 #ifdef CONFIG_X86_64
#ifdef CONFIG_PARAVIRT #ifdef CONFIG_PARAVIRT
/* Paravirtualized systems may not have PSE or PGE available */ /* Paravirtualized systems may not have PSE or PGE available */
@ -98,7 +104,7 @@
#define REQUIRED_MASK13 0 #define REQUIRED_MASK13 0
#define REQUIRED_MASK14 0 #define REQUIRED_MASK14 0
#define REQUIRED_MASK15 0 #define REQUIRED_MASK15 0
#define REQUIRED_MASK16 0 #define REQUIRED_MASK16 (NEED_LA57)
#define REQUIRED_MASK17 0 #define REQUIRED_MASK17 0
#define REQUIRED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 18) #define REQUIRED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 18)

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@ -9,6 +9,9 @@
#include <linux/types.h> #include <linux/types.h>
#include <linux/ioctl.h> #include <linux/ioctl.h>
#define KVM_PIO_PAGE_OFFSET 1
#define KVM_COALESCED_MMIO_PAGE_OFFSET 2
#define DE_VECTOR 0 #define DE_VECTOR 0
#define DB_VECTOR 1 #define DB_VECTOR 1
#define BP_VECTOR 3 #define BP_VECTOR 3

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@ -76,7 +76,11 @@
#define EXIT_REASON_WBINVD 54 #define EXIT_REASON_WBINVD 54
#define EXIT_REASON_XSETBV 55 #define EXIT_REASON_XSETBV 55
#define EXIT_REASON_APIC_WRITE 56 #define EXIT_REASON_APIC_WRITE 56
#define EXIT_REASON_RDRAND 57
#define EXIT_REASON_INVPCID 58 #define EXIT_REASON_INVPCID 58
#define EXIT_REASON_VMFUNC 59
#define EXIT_REASON_ENCLS 60
#define EXIT_REASON_RDSEED 61
#define EXIT_REASON_PML_FULL 62 #define EXIT_REASON_PML_FULL 62
#define EXIT_REASON_XSAVES 63 #define EXIT_REASON_XSAVES 63
#define EXIT_REASON_XRSTORS 64 #define EXIT_REASON_XRSTORS 64
@ -90,6 +94,7 @@
{ EXIT_REASON_TASK_SWITCH, "TASK_SWITCH" }, \ { EXIT_REASON_TASK_SWITCH, "TASK_SWITCH" }, \
{ EXIT_REASON_CPUID, "CPUID" }, \ { EXIT_REASON_CPUID, "CPUID" }, \
{ EXIT_REASON_HLT, "HLT" }, \ { EXIT_REASON_HLT, "HLT" }, \
{ EXIT_REASON_INVD, "INVD" }, \
{ EXIT_REASON_INVLPG, "INVLPG" }, \ { EXIT_REASON_INVLPG, "INVLPG" }, \
{ EXIT_REASON_RDPMC, "RDPMC" }, \ { EXIT_REASON_RDPMC, "RDPMC" }, \
{ EXIT_REASON_RDTSC, "RDTSC" }, \ { EXIT_REASON_RDTSC, "RDTSC" }, \
@ -108,6 +113,8 @@
{ EXIT_REASON_IO_INSTRUCTION, "IO_INSTRUCTION" }, \ { EXIT_REASON_IO_INSTRUCTION, "IO_INSTRUCTION" }, \
{ EXIT_REASON_MSR_READ, "MSR_READ" }, \ { EXIT_REASON_MSR_READ, "MSR_READ" }, \
{ EXIT_REASON_MSR_WRITE, "MSR_WRITE" }, \ { EXIT_REASON_MSR_WRITE, "MSR_WRITE" }, \
{ EXIT_REASON_INVALID_STATE, "INVALID_STATE" }, \
{ EXIT_REASON_MSR_LOAD_FAIL, "MSR_LOAD_FAIL" }, \
{ EXIT_REASON_MWAIT_INSTRUCTION, "MWAIT_INSTRUCTION" }, \ { EXIT_REASON_MWAIT_INSTRUCTION, "MWAIT_INSTRUCTION" }, \
{ EXIT_REASON_MONITOR_TRAP_FLAG, "MONITOR_TRAP_FLAG" }, \ { EXIT_REASON_MONITOR_TRAP_FLAG, "MONITOR_TRAP_FLAG" }, \
{ EXIT_REASON_MONITOR_INSTRUCTION, "MONITOR_INSTRUCTION" }, \ { EXIT_REASON_MONITOR_INSTRUCTION, "MONITOR_INSTRUCTION" }, \
@ -115,20 +122,24 @@
{ EXIT_REASON_MCE_DURING_VMENTRY, "MCE_DURING_VMENTRY" }, \ { EXIT_REASON_MCE_DURING_VMENTRY, "MCE_DURING_VMENTRY" }, \
{ EXIT_REASON_TPR_BELOW_THRESHOLD, "TPR_BELOW_THRESHOLD" }, \ { EXIT_REASON_TPR_BELOW_THRESHOLD, "TPR_BELOW_THRESHOLD" }, \
{ EXIT_REASON_APIC_ACCESS, "APIC_ACCESS" }, \ { EXIT_REASON_APIC_ACCESS, "APIC_ACCESS" }, \
{ EXIT_REASON_GDTR_IDTR, "GDTR_IDTR" }, \ { EXIT_REASON_EOI_INDUCED, "EOI_INDUCED" }, \
{ EXIT_REASON_LDTR_TR, "LDTR_TR" }, \ { EXIT_REASON_GDTR_IDTR, "GDTR_IDTR" }, \
{ EXIT_REASON_LDTR_TR, "LDTR_TR" }, \
{ EXIT_REASON_EPT_VIOLATION, "EPT_VIOLATION" }, \ { EXIT_REASON_EPT_VIOLATION, "EPT_VIOLATION" }, \
{ EXIT_REASON_EPT_MISCONFIG, "EPT_MISCONFIG" }, \ { EXIT_REASON_EPT_MISCONFIG, "EPT_MISCONFIG" }, \
{ EXIT_REASON_INVEPT, "INVEPT" }, \ { EXIT_REASON_INVEPT, "INVEPT" }, \
{ EXIT_REASON_RDTSCP, "RDTSCP" }, \
{ EXIT_REASON_PREEMPTION_TIMER, "PREEMPTION_TIMER" }, \ { EXIT_REASON_PREEMPTION_TIMER, "PREEMPTION_TIMER" }, \
{ EXIT_REASON_WBINVD, "WBINVD" }, \
{ EXIT_REASON_APIC_WRITE, "APIC_WRITE" }, \
{ EXIT_REASON_EOI_INDUCED, "EOI_INDUCED" }, \
{ EXIT_REASON_INVALID_STATE, "INVALID_STATE" }, \
{ EXIT_REASON_MSR_LOAD_FAIL, "MSR_LOAD_FAIL" }, \
{ EXIT_REASON_INVD, "INVD" }, \
{ EXIT_REASON_INVVPID, "INVVPID" }, \ { EXIT_REASON_INVVPID, "INVVPID" }, \
{ EXIT_REASON_WBINVD, "WBINVD" }, \
{ EXIT_REASON_XSETBV, "XSETBV" }, \
{ EXIT_REASON_APIC_WRITE, "APIC_WRITE" }, \
{ EXIT_REASON_RDRAND, "RDRAND" }, \
{ EXIT_REASON_INVPCID, "INVPCID" }, \ { EXIT_REASON_INVPCID, "INVPCID" }, \
{ EXIT_REASON_VMFUNC, "VMFUNC" }, \
{ EXIT_REASON_ENCLS, "ENCLS" }, \
{ EXIT_REASON_RDSEED, "RDSEED" }, \
{ EXIT_REASON_PML_FULL, "PML_FULL" }, \
{ EXIT_REASON_XSAVES, "XSAVES" }, \ { EXIT_REASON_XSAVES, "XSAVES" }, \
{ EXIT_REASON_XRSTORS, "XRSTORS" } { EXIT_REASON_XRSTORS, "XRSTORS" }

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@ -48,17 +48,13 @@
* tv_sec holds the number of seconds before (negative) or after (positive) * tv_sec holds the number of seconds before (negative) or after (positive)
* 00:00:00 1st January 1970 UTC. * 00:00:00 1st January 1970 UTC.
* *
* tv_nsec holds a number of nanoseconds before (0..-999,999,999 if tv_sec is * tv_nsec holds a number of nanoseconds (0..999,999,999) after the tv_sec time.
* negative) or after (0..999,999,999 if tv_sec is positive) the tv_sec time.
*
* Note that if both tv_sec and tv_nsec are non-zero, then the two values must
* either be both positive or both negative.
* *
* __reserved is held in case we need a yet finer resolution. * __reserved is held in case we need a yet finer resolution.
*/ */
struct statx_timestamp { struct statx_timestamp {
__s64 tv_sec; __s64 tv_sec;
__s32 tv_nsec; __u32 tv_nsec;
__s32 __reserved; __s32 __reserved;
}; };