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linux-stable/arch/x86/kernel
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David Woodhouse f6c46b1d62 PM: hibernate: Honour ACPI hardware signature by default for virtual guests 
The ACPI specification says that OSPM should refuse to restore from
hibernate if the hardware signature changes, and should boot from
scratch. However, real BIOSes often vary the hardware signature in cases
where we *do* want to resume from hibernate, so Linux doesn't follow the
spec by default.

However, in a virtual environment there's no reason for the VMM to vary
the hardware signature *unless* it wants to trigger a clean reboot as
defined by the ACPI spec. So enable the check by default if a hypervisor
is detected.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-03-16 19:29:32 +01:00
..
acpi PM: hibernate: Honour ACPI hardware signature by default for virtual guests 2022-03-16 19:29:32 +01:00
apic bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
cpu x86/sgx: Silence softlockup detection when releasing large enclaves 2022-02-10 15:58:14 -08:00
fpu RISCV: 2022-01-16 16:15:14 +02:00
kprobes x86: Prepare inline-asm for straight-line-speculation 2021-12-08 19:23:12 +01:00
.gitignore
alternative.c x86/alternative: Relax text_poke_bp() constraint 2021-12-09 11:04:50 +01:00
amd_gart_64.c x86/amd_gart: don't set failed sg dma_address to DMA_MAPPING_ERROR 2021-08-09 17:13:06 +02:00
amd_nb.c hwmon updates for v5.17 2022-01-11 10:25:36 -08:00
aperture_64.c proc/vmcore: convert oldmem_pfn_is_ram callback to more generic vmcore callbacks 2021-11-09 10:02:48 -08:00
apm_32.c x86: Fix various typos in comments, take #2 2021-03-21 23:50:28 +01:00
asm-offsets.c um, x86: bury crypto_tfm_ctx_offset 2021-12-21 21:31:35 +01:00
asm-offsets_32.c x86/stackprotector/32: Make the canary into a regular percpu variable 2021-03-08 13:19:05 +01:00
asm-offsets_64.c x86/xen: Drop USERGS_SYSRET64 paravirt call 2021-02-10 12:32:07 +01:00
audit_64.c audit: add support for the openat2 syscall 2021-10-01 16:52:48 -04:00
bootflag.c
cc_platform.c hyperv-next for 5.17 2022-01-16 15:53:00 +02:00
check.c
cpuid.c smp: Cleanup smp_call_function*() 2020-11-24 16:47:49 +01:00
crash.c x86/crash: Remove crash_reserve_low_1M() 2021-06-07 12:14:45 +02:00
crash_core_32.c
crash_core_64.c
crash_dump_32.c x86/crashdump/32: Simplify copy_oldmem_page() 2020-11-24 14:42:09 +01:00
crash_dump_64.c x86/sev: Replace occurrences of sev_active() with cc_platform_has() 2021-10-04 11:46:58 +02:00
devicetree.c Devicetree updates for v5.16: 2021-11-02 22:22:13 -07:00
doublefault_32.c exit/doublefault: Remove apparently bogus comment about rewind_stack_do_exit 2021-10-20 13:09:43 -05:00
dumpstack.c exit: Add and use make_task_dead. 2021-12-13 12:04:45 -06:00
dumpstack_32.c
dumpstack_64.c x86/mm/64: Improve stack overflow warnings 2021-09-21 13:57:43 +02:00
e820.c Power management updates for 5.13-rc1 2021-04-26 15:10:25 -07:00
early-quirks.c pci-v5.17-fixes-1 2022-01-21 09:10:46 +02:00
early_printk.c
ebda.c
eisa.c
espfix_64.c
ftrace.c x86: Add straight-line-speculation mitigation 2021-12-09 13:32:25 +01:00
ftrace_32.S x86: Prepare asm files for straight-line-speculation 2021-12-08 12:25:37 +01:00
ftrace_64.S x86: Prepare asm files for straight-line-speculation 2021-12-08 12:25:37 +01:00
head32.c
head64.c - Flush *all* mappings from the TLB after switching to the trampoline 2022-01-10 09:51:38 -08:00
head_32.S x86: Prepare asm files for straight-line-speculation 2021-12-08 12:25:37 +01:00
head_64.S x86/mm/64: Flush global TLB on boot and AP bringup 2021-12-06 09:38:48 +01:00
hpet.c rtc: Check return value from mc146818_get_time() 2021-12-16 21:50:06 +01:00
hw_breakpoint.c x86/debug: Prevent data breakpoints on cpu_dr7 2021-02-05 20:13:12 +01:00
i8237.c
i8253.c
i8259.c x86: Avoid magic number with ELCR register accesses 2021-08-10 23:31:43 +02:00
idt.c X86 interrupt related changes: 2021-06-29 12:36:59 -07:00
io_delay.c
ioport.c
irq.c x86/irq: Ensure PI wakeup handler is unregistered before module unload 2021-10-22 12:45:35 -04:00
irq_32.c x86/softirq: Disable softirq stacks on PREEMPT_RT 2021-09-27 12:28:32 +02:00
irq_64.c x86/softirq/64: Inline do_softirq_own_stack() 2021-02-10 23:34:17 +01:00
irq_work.c
irqflags.S x86: Prepare asm files for straight-line-speculation 2021-12-08 12:25:37 +01:00
irqinit.c
itmt.c x86/sched: Decrease further the priorities of SMT siblings 2021-10-05 15:51:59 +02:00
jailhouse.c
jump_label.c jump_labels: Mark __jump_label_transform() as __always_inlined to work around aggressive compiler un-inlining 2021-07-13 06:32:05 +02:00
kdebugfs.c
kexec-bzimage64.c x86: Use ELF fields defined in 'struct kimage' 2021-03-08 12:06:29 -07:00
kgdb.c x86: Fix various typos in comments 2021-03-18 15:31:53 +01:00
ksysfs.c
kvm.c x86/kvm: Silence per-cpu pr_info noise about KVM clocks and steal time 2022-01-07 10:44:43 -05:00
kvmclock.c x86/kvm: Silence per-cpu pr_info noise about KVM clocks and steal time 2022-01-07 10:44:43 -05:00
ldt.c memcg: enable accounting for ldt_struct objects 2021-09-03 09:58:13 -07:00
machine_kexec_32.c x86/kexec: Set_[gi]dt() -> native_[gi]dt_invalidate() in machine_kexec_*.c 2021-05-21 12:36:45 +02:00
machine_kexec_64.c x86/sev: Replace occurrences of sev_active() with cc_platform_has() 2021-10-04 11:46:58 +02:00
Makefile arch: Make ARCH_STACKWALK independent of STACKTRACE 2021-12-10 14:06:03 +00:00
mmconf-fam10h_64.c x86/msr: Rename MSR_K8_SYSCFG to MSR_AMD64_SYSCFG 2021-05-10 07:51:38 +02:00
module.c mm: defer kmemleak object creation of module_alloc() 2022-01-15 16:30:25 +02:00
mpparse.c x86: Avoid magic number with ELCR register accesses 2021-08-10 23:31:43 +02:00
msr.c x86/MSR: Filter MSR writes through X86_IOC_WRMSR_REGS ioctl too 2021-01-27 19:06:47 +01:00
nmi.c x86/sev-es: Rename sev-es.{ch} to sev.{ch} 2021-05-10 07:40:27 +02:00
nmi_selftest.c
paravirt-spinlocks.c x86/paravirt: Add new features for paravirt patching 2021-03-11 19:51:49 +01:00
paravirt.c x86: Prepare inline-asm for straight-line-speculation 2021-12-08 19:23:12 +01:00
pci-dma.c dma-mapping: move dma-debug.h to kernel/dma/ 2020-10-06 07:07:05 +02:00
pci-iommu_table.c x86: Remove definition of DEBUG 2021-01-15 08:23:10 +01:00
pci-swiotlb.c x86/sme: Replace occurrences of sme_active() with cc_platform_has() 2021-10-04 11:46:46 +02:00
pcspeaker.c
perf_regs.c - Remove all uses of TIF_IA32 and TIF_X32 and reclaim the two bits in the end 2020-12-14 13:45:26 -08:00
platform-quirks.c
pmem.c
probe_roms.c x86/pci/probe_roms: Use to_pci_driver() instead of pci_dev->driver 2021-10-18 09:20:15 -05:00
process.c RISCV: 2022-01-16 16:15:14 +02:00
process.h x86: Snapshot thread flags 2021-12-01 00:06:43 +01:00
process_32.c x86/fpu: Move context switch and exit to user inlines into sched.h 2021-10-20 15:27:27 +02:00
process_64.c x86/fpu: Move context switch and exit to user inlines into sched.h 2021-10-20 15:27:27 +02:00
ptrace.c x86/fpu: Remove internal.h dependency from fpu/signal.h 2021-10-20 15:27:29 +02:00
pvclock.c x86: Fix various typos in comments 2021-03-18 15:31:53 +01:00
quirks.c x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}() 2020-10-06 11:18:04 +02:00
reboot.c x86/mm: Flush global TLB when switching to trampoline page-table 2021-12-06 09:54:10 +01:00
reboot_fixups_32.c
relocate_kernel_32.S x86: Prepare asm files for straight-line-speculation 2021-12-08 12:25:37 +01:00
relocate_kernel_64.S x86: Prepare asm files for straight-line-speculation 2021-12-08 12:25:37 +01:00
resource.c x86/PCI: revert "Ignore E820 reservations for bridge windows on newer systems" 2022-02-09 19:42:58 +01:00
rtc.c
setup.c - Add support for decoding instructions which do MMIO accesses in order 2022-01-10 10:00:03 -08:00
setup_percpu.c mm: percpu: add generic pcpu_populate_pte() function 2022-01-20 08:52:52 +02:00
sev-shared.c x86/sev: Shorten GHCB terminate macro names 2021-11-15 20:31:16 +01:00
sev.c - Add support for decoding instructions which do MMIO accesses in order 2022-01-10 10:00:03 -08:00
sev_verify_cbit.S x86: Prepare asm files for straight-line-speculation 2021-12-08 12:25:37 +01:00
signal.c x86/signal: Use fpu::__state_user_size for sigalt stack validation 2021-10-26 10:18:09 +02:00
signal_compat.c signal: Verify the alignment and size of siginfo_t 2021-07-23 13:15:31 -05:00
smp.c x86: Fix various typos in comments, take #2 2021-03-21 23:50:28 +01:00
smpboot.c sched,x86: Don't use cluster topology for x86 hybrid CPUs 2021-12-08 22:15:37 +01:00
stacktrace.c stacktrace: Move documentation for arch_stack_walk_reliable() to header 2021-03-10 15:52:31 +01:00
static_call.c x86: Add straight-line-speculation mitigation 2021-12-09 13:32:25 +01:00
step.c entry: Ensure trap after single-step on system call return 2021-02-06 00:21:42 +01:00
sys_ia32.c
sys_x86_64.c x86/mm: Refine mmap syscall implementation 2021-01-05 19:07:42 +01:00
tboot.c x86/boot/tboot: Avoid Wstringop-overread-warning 2021-03-23 00:16:13 +01:00
time.c
tls.c x86/stackprotector/32: Make the canary into a regular percpu variable 2021-03-08 13:19:05 +01:00
tls.h
topology.c x86: Fix various typos in comments 2021-03-18 15:31:53 +01:00
trace.c trace/osnoise: Fix an ifdef comment 2021-10-25 23:02:36 -04:00
trace_clock.c
tracepoint.c
traps.c - Do not #GP on userspace use of CLI/STI but pretend it was a NOP to 2021-11-02 07:56:47 -07:00
tsc.c x86/tsc: Disable clocksource watchdog for TSC on qualified platorms 2021-12-02 00:40:36 +01:00
tsc_msr.c
tsc_sync.c x86/tsc: Add a timer to make sure TSC_adjust is always checked 2021-12-02 00:40:35 +01:00
umip.c x86/umip: Downgrade warning messages to debug loglevel 2021-09-25 13:23:28 +02:00
unwind_frame.c x86/unwind: Recover kretprobe trampoline entry 2021-09-30 21:24:07 -04:00
unwind_guess.c x86/unwind: Recover kretprobe trampoline entry 2021-09-30 21:24:07 -04:00
unwind_orc.c Merge branch 'akpm' (patches from Andrew) 2021-11-09 10:11:53 -08:00
uprobes.c x86/uprobes: Convert to insn_decode() 2021-03-15 12:05:03 +01:00
verify_cpu.S x86: Prepare asm files for straight-line-speculation 2021-12-08 12:25:37 +01:00
vm86_32.c signal: Replace force_fatal_sig with force_exit_sig when in doubt 2021-11-19 09:15:58 -06:00
vmlinux.lds.S x86: Remove .fixup section 2021-12-11 09:09:50 +01:00
vsmp_64.c
x86_init.c PCI/MSI: Make arch_restore_msi_irqs() less horrible. 2021-12-09 11:52:21 +01:00