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Vitaly Kuznetsov 1e2ae9ec07 x86/hyperv: Avoid reporting bogus NMI status for Gen2 instances 
Generation2 instances don't support reporting the NMI status on port 0x61,
read from there returns 'ff' and we end up reporting nonsensical PCI
error (as there is no PCI bus in these instances) on all NMIs:

    NMI: PCI system error (SERR) for reason ff on CPU 0.
    Dazed and confused, but trying to continue

Fix the issue by overriding x86_platform.get_nmi_reason. Use 'booted on
EFI' flag to detect Gen2 instances.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Cathy Avery <cavery@redhat.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: devel@linuxdriverproject.org
Link: http://lkml.kernel.org/r/1460728232-31433-1-git-send-email-vkuznets@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-04-16 11:18:21 +02:00
..
acpi
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-24 09:47:32 -07:00
apic
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-24 09:47:32 -07:00
cpu
x86/hyperv: Avoid reporting bogus NMI status for Gen2 instances
2016-04-16 11:18:21 +02:00
fpu
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-24 09:47:32 -07:00
kprobes
x86/kprobes: Mark kretprobe_trampoline() stack frame as non-standard
2016-02-29 08:35:12 +01:00
.gitignore
…
alternative.c
x86/alternatives: Make optimize_nops() interrupt safe and synced
2015-09-03 21:27:47 +02:00
amd_gart_64.c
…
amd_nb.c
x86/cpu: Get rid of compute_unit_id
2016-03-29 10:45:04 +02:00
apb_timer.c
x86/apb/timer: Use proper mask to modify hotplug action
2016-03-19 13:40:08 +01:00
aperture_64.c
param: convert some "on"/"off" users to strtobool
2016-03-17 15:09:34 -07:00
apm_32.c
x86: Fix misspellings in comments
2016-02-24 08:44:58 +01:00
asm-offsets_32.c
x86/entry/32: Simplify and fix up the SYSENTER stack #DB/NMI fixup
2016-03-10 09:48:14 +01:00
asm-offsets_64.c
x86/syscalls: Add syscall entry qualifiers
2016-01-29 09:46:38 +01:00
asm-offsets.c
x86/asm-offsets: Remove PARAVIRT_enabled
2016-03-08 14:16:44 +01:00
audit_64.c
x86: hook up execveat system call
2014-12-13 12:42:51 -08:00
bootflag.c
x86: don't use module_init for non-modular core bootflag code
2015-06-16 14:12:34 -04:00
check.c
Linux 4.2-rc8
2015-08-25 09:59:19 +02:00
cpuid.c
new helpers: no_seek_end_llseek{,_size}()
2015-12-23 10:41:31 -05:00
crash_dump_32.c
…
crash_dump_64.c
…
crash.c
x86/kexec: Remove walk_iomem_res() call with GART type
2016-01-30 09:49:59 +01:00
devicetree.c
Replace module_init with equivalent device_initcall in non modules.
2015-07-02 10:30:48 -07:00
doublefault.c
…
dumpstack_32.c
Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-04-13 13:23:34 -07:00
dumpstack_64.c
x86/kernel: Use kstack_end() in dumpstack_64.c
2015-02-23 18:37:13 +01:00
dumpstack.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-03-19 10:05:34 -07:00
e820.c
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-15 09:32:27 -07:00
early_printk.c
x86: Fix misspellings in comments
2016-02-24 08:44:58 +01:00
early-quirks.c
Linux 4.4-rc2
2015-11-23 09:04:05 +01:00
espfix_64.c
Merge branch 'x86/urgent' into x86/asm, before applying dependent patches
2015-07-31 10:23:35 +02:00
ftrace.c
Nothing major this round. Mostly small clean ups and fixes.
2016-03-24 10:52:25 -07:00
head32.c
x86: Store a per-cpu shadow copy of CR4
2015-02-04 12:10:42 +01:00
head64.c
Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-15 10:02:25 -07:00
head_32.S
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-15 10:45:39 -07:00
head_64.S
Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-15 10:02:25 -07:00
head.c
…
hpet.c
x86/hpet: Use proper mask to modify hotplug action
2016-03-19 13:40:08 +01:00
hw_breakpoint.c
x86/cpufeature: Remove unused and seldomly used cpu_has_xx macros
2015-12-19 11:49:55 +01:00
i386_ksyms_32.c
preempt: Use preempt_schedule_context() as the official tracing preemption point
2015-06-07 15:57:42 +02:00
i8237.c
…
i8253.c
clockevents/drivers/i8253: Migrate to new 'set-state' interface
2015-08-10 11:40:30 +02:00
i8259.c
x86/irq: Probe for PIC presence before allocating descs for legacy IRQs
2015-11-07 10:37:37 +01:00
io_delay.c
…
ioport.c
x86/iopl: Fix iopl capability check on Xen PV
2016-03-17 09:49:27 +01:00
irq_32.c
genirq: Remove irq argument from irq flow handlers
2015-09-16 15:47:51 +02:00
irq_64.c
x86/irq: Drop unlikely before IS_ERR_OR_NULL
2015-10-01 11:08:56 +02:00
irq_work.c
treewide: Remove old email address
2015-11-23 09:44:58 +01:00
irq.c
x86/irq: Call irq_force_move_complete with irq descriptor
2016-01-15 13:44:01 +01:00
irqinit.c
x86/irq: Store irq descriptor in vector array
2015-08-06 00:14:59 +02:00
jump_label.c
jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP}
2015-08-03 11:34:12 +02:00
kdebugfs.c
…
kexec-bzimage64.c
x86: Fix misspellings in comments
2016-02-24 08:44:58 +01:00
kgdb.c
Merge branch 'x86/cleanups' into x86/urgent
2016-03-17 09:44:57 +01:00
ksysfs.c
…
kvm.c
kvm, rt: change async pagefault code locking for PREEMPT_RT
2016-03-22 16:38:38 +01:00
kvmclock.c
x86: Fix misspellings in comments
2016-02-24 08:44:58 +01:00
ldt.c
x86/mm: Factor out LDT init from context init
2016-02-18 19:46:31 +01:00
livepatch.c
livepatch: Cleanup module page permission changes
2015-12-04 22:51:07 +01:00
machine_kexec_32.c
x86, irq: Move IOAPIC related declarations from hw_irq.h into io_apic.h
2014-12-16 14:08:17 +01:00
machine_kexec_64.c
kexec: move some memembers and definitions within the scope of CONFIG_KEXEC_FILE
2016-01-20 17:09:18 -08:00
Makefile
mm, kasan: stackdepot implementation. Enable stackdepot for SLAB
2016-03-25 16:37:42 -07:00
mcount_64.S
x86/ftrace, x86/asm: Kill ftrace_caller_end label
2016-02-17 08:47:22 +01:00
mmconf-fam10h_64.c
…
module.c
x86/mm/KASLR: Propagate KASLR status to kernel proper
2015-04-03 15:26:15 +02:00
mpparse.c
x86/cpufeature: Use enum cpuid_leafs instead of magic numbers
2016-02-01 10:46:48 +01:00
msr.c
x86/cpufeature: Carve out X86_FEATURE_*
2016-01-30 11:22:17 +01:00
nmi_selftest.c
…
nmi.c
x86/nmi: Mark 'ignore_nmis' as __read_mostly
2016-03-08 12:48:19 +01:00
paravirt_patch_32.c
x86/paravirt: Remove the unused irq_enable_sysexit pv op
2015-11-23 10:48:16 +01:00
paravirt_patch_64.c
x86/entry, x86/paravirt: Remove the unused usergs_sysret32 PV op
2015-11-23 10:48:16 +01:00
paravirt-spinlocks.c
locking/pvqspinlock: Rename QUEUED_SPINLOCK to QUEUED_SPINLOCKS
2015-05-11 09:52:09 +02:00
paravirt.c
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-01-11 16:26:03 -08:00
pci-calgary_64.c
x86/platform/calgary: Constify cal_chipset_ops structures
2015-11-29 08:50:58 +01:00
pci-dma.c
mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd
2015-11-06 17:50:42 -08:00
pci-iommu_table.c
…
pci-nommu.c
…
pci-swiotlb.c
x86/mm/64: Enable SWIOTLB if system has SRAT memory regions above MAX_DMA32_PFN
2015-12-06 12:46:31 +01:00
pcspeaker.c
…
perf_regs.c
perf/x86/64: Report regs_user->ax too in get_regs_user()
2015-04-11 13:08:53 +02:00
pmem.c
x86, kexec, nvdimm: Use walk_iomem_res_desc() for iomem search
2016-01-30 09:49:59 +01:00
probe_roms.c
…
process_32.c
sched/core, sched/x86: Kill thread_info::saved_preempt_count
2015-10-06 17:08:18 +02:00
process_64.c
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-24 09:47:32 -07:00
process.c
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-15 09:32:27 -07:00
ptrace.c
arch/x86/kernel/ptrace.c: Remove unused arg_offs_table
2015-12-29 11:35:34 +01:00
pvclock.c
x86/vdso: Remove pvclock fixmap machinery
2015-12-11 08:56:03 +01:00
quirks.c
timers/x86/hpet: Type adjustments
2015-10-21 11:17:32 +02:00
reboot_fixups_32.c
…
reboot.c
x86/reboot/quirks: Add iMac10,1 to pci_reboot_dmi_table[]
2016-01-12 12:27:36 +01:00
relocate_kernel_32.S
x86/asm: Optimize unnecessarily wide TEST instructions
2015-03-07 11:12:43 +01:00
relocate_kernel_64.S
x86/asm: Replace "MOVQ $imm, %reg" with MOVL
2015-04-01 13:17:39 +02:00
resource.c
…
rtc.c
x86/paravirt: Prevent rtc_cmos platform device init on PV guests
2015-12-19 21:35:13 +01:00
setup_percpu.c
…
setup.c
Revert "x86: remove the kernel code/data/bss resources from /proc/iomem"
2016-04-14 12:55:32 -07:00
signal_compat.c
x86/compat: Move copy_siginfo_*_user32() to signal_compat.c
2015-07-06 15:28:55 +02:00
signal.c
x86/signal/64: Re-add support for SS in the 64-bit signal context
2016-02-17 08:32:11 +01:00
smp.c
x86/smp: Remove single IPI wrapper
2015-11-05 13:07:54 +01:00
smpboot.c
x86/cpu: Get rid of compute_unit_id
2016-03-29 10:45:04 +02:00
stacktrace.c
perf: generalize perf_callchain
2016-02-20 00:21:44 -05:00
step.c
Merge branch 'x86/urgent' into x86/asm to fix up conflicts and to pick up fixes
2015-08-18 09:39:47 +02:00
sys_x86_64.c
x86/mm: Improve AMD Bulldozer ASLR workaround
2015-03-31 10:01:17 +02:00
sysfb_efi.c
…
sysfb_simplefb.c
…
sysfb.c
…
tboot.c
mm: cleanup *pte_alloc* interfaces
2016-03-17 15:09:34 -07:00
tce_64.c
…
test_nx.c
x86/mm: Always enable CONFIG_DEBUG_RODATA and remove the Kconfig option
2016-02-22 08:51:38 +01:00
test_rodata.c
x86/mm: Always enable CONFIG_DEBUG_RODATA and remove the Kconfig option
2016-02-22 08:51:38 +01:00
time.c
x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()'
2015-03-23 11:14:17 +01:00
tls.c
x86, tls: Interpret an all-zero struct user_desc as "no segment"
2015-01-22 21:45:07 +01:00
tls.h
…
topology.c
x86: Drop bogus __ref / __refdata annotations
2015-07-20 18:57:20 +02:00
trace_clock.c
x86/asm/tsc: Add rdtsc_ordered() and use it in trivial call sites
2015-07-06 15:23:29 +02:00
tracepoint.c
…
traps.c
Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-15 10:23:56 -07:00
tsc_msr.c
…
tsc_sync.c
x86/asm/tsc/sync: Use rdtsc_ordered() in check_tsc_warp() and drop extra barriers
2015-07-06 15:23:29 +02:00
tsc.c
x86/tsc: Prevent NULL pointer deref in calibrate_delay_is_known()
2016-03-18 14:51:06 +01:00
uprobes.c
uprobes/x86: Make arch_uretprobe_is_alive(RP_CHECK_CALL) more clever
2015-07-31 10:38:06 +02:00
verify_cpu.S
x86/cpufeature: Carve out X86_FEATURE_*
2016-01-30 11:22:17 +01:00
vm86_32.c
x86/cpufeature: Replace the old static_cpu_has() with safe variant
2016-01-30 11:22:18 +01:00
vmlinux.lds.S
arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections
2016-03-25 16:37:42 -07:00
vsmp_64.c
x86: replace __init_or_module with __init in non-modular vsmp_64.c
2015-06-16 14:12:41 -04:00
x86_init.c
x86/tsc: Remove unused tsc_pre_init() hook
2015-11-19 11:03:13 +01:00
x8664_ksyms_64.c
x86/mm, x86/mce: Add memcpy_mcsafe()
2016-03-08 17:54:38 +01:00