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linux/arch/x86/kernel
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Stephane Eranian 1d9d8639c0 perf,x86: fix kernel crash with PEBS/BTS after suspend/resume 
This patch fixes a kernel crash when using precise sampling (PEBS)
after a suspend/resume. Turns out the CPU notifier code is not invoked
on CPU0 (BP). Therefore, the DS_AREA (used by PEBS) is not restored properly
by the kernel and keeps it power-on/resume value of 0 causing any PEBS
measurement to crash when running on CPU0.

The workaround is to add a hook in the actual resume code to restore
the DS Area MSR value. It is invoked for all CPUS. So for all but CPU0,
the DS_AREA will be restored twice but this is harmless.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-15 09:26:35 -07:00
..
acpi
cpu_hotplug: clear apicid to node when the cpu is hotremoved
2013-02-23 17:50:13 -08:00
apic
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-02-26 19:45:29 -08:00
cpu
perf,x86: fix kernel crash with PEBS/BTS after suspend/resume
2013-03-15 09:26:35 -07:00
kprobes
hlist: drop the node parameter from iterators
2013-02-27 19:10:24 -08:00
.gitignore
…
alternative.c
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-10-01 10:47:45 -07:00
amd_gart_64.c
x86, mm: use pfn_range_is_mapped() with gart
2012-11-17 11:59:10 -08:00
amd_nb.c
Merge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-07-22 16:07:45 -07:00
apb_timer.c
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-02-19 20:11:07 -08:00
aperture_64.c
x86/gart: Fix kmemleak warning
2012-06-06 11:58:38 +02:00
apm_32.c
ACPI and power management updates for 3.9-rc1
2013-02-20 11:26:56 -08:00
asm-offsets_32.c
x86: Generate system call tables and unistd_*.h from tables
2011-11-17 13:35:37 -08:00
asm-offsets_64.c
x32: If configured, add x32 system calls to system call tables
2012-02-20 12:52:06 -08:00
asm-offsets.c
x86, um/x86: switch to generic sys_execve and kernel_execve
2012-09-30 22:53:32 -04:00
audit_64.c
…
bootflag.c
…
check.c
x86: kernel/check.c simple_strtoul cleanup
2012-05-15 15:36:41 -07:00
cpuid.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
crash_dump_32.c
x86: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:15 +08:00
crash_dump_64.c
crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn
2011-03-23 19:47:19 -07:00
crash.c
x86/kexec: crash_vmclear_local_vmcss needs __rcu
2012-12-11 19:55:23 -02:00
devicetree.c
x86: dt: Use linear irq domain for ioapic(s)
2012-08-21 22:16:57 +02:00
doublefault_32.c
…
dumpstack_32.c
x86: Move call to print_modules() out of show_regs()
2012-06-20 14:33:48 +02:00
dumpstack_64.c
x86: Move call to print_modules() out of show_regs()
2012-06-20 14:33:48 +02:00
dumpstack.c
taint: add explicit flag to show whether lock dep is still OK.
2013-01-21 17:17:57 +10:30
e820.c
x86, mm: Let "memmap=" take more entries one time
2012-11-17 11:59:51 -08:00
early_printk.c
Revert "x86/early_printk: Replace obsolete simple_strtoul() usage with kstrtoint()"
2012-07-22 15:47:52 +02:00
early-quirks.c
…
entry_32.S
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2013-02-23 18:50:11 -08:00
entry_64.S
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2013-02-23 18:50:11 -08:00
ftrace.c
x86/ftrace: Use __pa_symbol instead of __pa on C visible symbols
2012-11-16 16:42:09 -08:00
head32.c
x86: Merge early kernel reserve for 32bit and 64bit
2013-01-29 19:32:58 -08:00
head64.c
Merge branch 'x86/microcode' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-02-22 19:22:52 -08:00
head_32.S
Merge branch 'x86/microcode' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-02-22 19:22:52 -08:00
head_64.S
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-02-27 16:16:39 -08:00
head.c
x86: Make sure we can boot in the case the BDA contains pure garbage
2013-02-27 13:38:57 -08:00
hpet.c
x86, hpet: Introduce x86_msi_ops.setup_hpet_msi
2013-01-28 10:48:30 +01:00
hw_breakpoint.c
…
i386_ksyms_32.c
x86-32: Add support for 64bit get_user()
2013-02-07 15:07:28 -08:00
i387.c
x86/i387.c: Initialize thread xstate only on CPU0 only once
2012-11-14 15:28:11 -08:00
i8237.c
x86: Use syscore_ops instead of sysdev classes and sysdevs
2011-03-23 22:15:54 +01:00
i8253.c
x86: Use common i8253 clockevent
2011-07-01 10:37:14 +02:00
i8259.c
x86/irq/i8259: Fix incorrect comment
2012-08-22 09:34:24 +02:00
io_delay.c
…
ioport.c
x86: get rid of pt_regs argument of iopl(2)
2013-02-03 18:16:24 -05:00
irq_32.c
x86: Use common threadinfo allocator
2012-05-08 14:08:44 +02:00
irq_64.c
x86: Add stack top margin for stack overflow checking
2011-12-07 09:27:11 +01:00
irq_work.c
…
irq.c
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-10-01 11:13:33 -07:00
irqinit.c
x86, 386 removal: Remove support for IRQ 13 FPU error reporting
2012-12-17 11:42:40 -08:00
jump_label.c
jump_label, x86: Fix section mismatch
2011-12-06 20:41:02 +01:00
kdebugfs.c
arch/x86/kernel/kdebugfs.c: Ensure a consistent return value in error case
2012-07-26 15:07:20 +02:00
kgdb.c
kgdb,x86: fix warning about unused variable
2012-10-12 06:37:34 -05:00
kvm.c
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-02-21 18:06:55 -08:00
kvmclock.c
Merge tag 'kvm-3.9-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2013-02-24 13:07:18 -08:00
ldt.c
Disintegrate asm/system.h for X86
2012-03-28 18:11:12 +01:00
machine_kexec_32.c
Disintegrate asm/system.h for X86
2012-03-28 18:11:12 +01:00
machine_kexec_64.c
x86, kexec, 64bit: Only set ident mapping for ram.
2013-01-29 15:26:35 -08:00
Makefile
Merge branch 'x86/microcode' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-02-22 19:22:52 -08:00
microcode_amd.c
x86, microcode, AMD: Add support for family 16h processors
2012-11-20 22:23:28 -08:00
microcode_core_early.c
x86/microcode_core_early.c: Define interfaces for early loading ucode
2013-01-31 13:19:12 -08:00
microcode_core.c
x86/microcode_intel.h: Define functions and macros for early loading ucode
2013-01-31 13:18:50 -08:00
microcode_intel_early.c
x86/microcode_intel_early.c: Early update ucode on Intel's CPU
2013-01-31 13:19:18 -08:00
microcode_intel_lib.c
x86/microcode_intel_lib.c: Early update ucode on Intel's CPU
2013-01-31 13:19:14 -08:00
microcode_intel.c
x86/microcode_intel.h: Define functions and macros for early loading ucode
2013-01-31 13:18:50 -08:00
mmconf-fam10h_64.c
…
module.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2012-07-24 13:34:56 -07:00
mpparse.c
Merge branch 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-05-29 20:14:53 -07:00
msr.c
more file_inode() open-coded instances
2013-02-27 16:59:05 -05:00
nmi_selftest.c
x86/nmi: Clean up register_nmi_handler() usage
2012-06-20 14:23:17 +02:00
nmi.c
x86/nmi: export local_touch_nmi() symbol for modules
2013-01-17 22:25:57 +08:00
paravirt_patch_32.c
…
paravirt_patch_64.c
…
paravirt-spinlocks.c
…
paravirt.c
x86, pvops: Remove hooks for {rd,wr}msr_safe_regs
2012-06-07 11:41:08 -07:00
pci-calgary_64.c
x86/debug: Add KERN_<LEVEL> to bare printks, convert printks to pr_<level>
2012-06-06 09:17:22 +02:00
pci-dma.c
x86/dma-debug: Bump PREALLOC_DMA_DEBUG_ENTRIES
2013-01-24 17:34:18 +01:00
pci-iommu_table.c
arch/x86/kernel/pci-iommu_table.c: Convert sprintf_symbol to %pS
2011-05-10 10:21:35 +02:00
pci-nommu.c
X86: integrate CMA with DMA-mapping subsystem
2012-05-21 15:09:38 +02:00
pci-swiotlb.c
X86 & IA64: adapt for dma_map_ops changes
2012-03-28 16:36:31 +02:00
pcspeaker.c
…
perf_regs.c
perf: Fix off by one test in perf_reg_value()
2012-09-19 17:08:40 +02:00
probe_roms.c
x86/pci/probe_roms: Add missing __iomem annotation to pci_map_biosrom()
2012-09-05 10:52:25 +02:00
process_32.c
flagday: don't pass regs to copy_thread()
2012-11-28 23:43:42 -05:00
process_64.c
x86/process: Change %8s to %s for pr_warn() in release_thread()
2013-01-24 18:11:03 +01:00
process.c
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
2013-02-18 22:34:11 +01:00
ptrace.c
x86: ptrace.c only needs export.h and not the full module.h
2013-02-14 12:56:12 -08:00
pvclock.c
x86/kvm: Fix pvclock vsyscall fixmap
2013-02-28 08:50:11 +02:00
quirks.c
X86: drivers: remove __dev* attributes.
2013-01-03 15:57:04 -08:00
reboot_fixups_32.c
…
reboot.c
efi: Make 'efi_enabled' a function to query EFI facilities
2013-01-30 11:51:59 -08:00
relocate_kernel_32.S
kexec, x86: Fix incorrect jump back address if not preserving context
2011-07-21 11:19:28 +02:00
relocate_kernel_64.S
kexec, x86: Fix incorrect jump back address if not preserving context
2011-07-21 11:19:28 +02:00
resource.c
…
rtc.c
x86/time/rtc: Don't print extended CMOS year when reading RTC
2013-01-24 14:56:35 +01:00
setup_percpu.c
x86: Add read_mostly declaration/definition to variables from smp.h
2012-06-14 12:42:11 +02:00
setup.c
x86: Fix 32-bit *_cpu_data initializers
2013-03-06 20:15:50 -08:00
signal.c
x86: convert to ksignal
2013-02-14 09:21:17 -05:00
smp.c
x86/reboot: Update nonmi_ipi parameter
2012-05-14 11:49:38 +02:00
smpboot.c
x86, smpboot: Remove unused variable
2013-03-05 15:26:45 -08:00
stacktrace.c
x86: Swap save_stack_trace_regs parameters
2011-06-14 22:48:51 -04:00
step.c
ptrace: ensure arch_ptrace/ptrace_request can never race with SIGKILL
2013-01-22 10:08:00 -08:00
sys_x86_64.c
x86: Fix a typo
2013-01-24 16:22:10 +01:00
syscall_32.c
x86, syscall: Re-fix typo in comment
2011-11-18 16:25:07 -08:00
syscall_64.c
x32: If configured, add x32 system calls to system call tables
2012-02-20 12:52:06 -08:00
tboot.c
Revert "x86-64/efi: Use EFI to deal with platform wall clock (again)"
2012-12-15 15:20:41 -08:00
tce_64.c
Disintegrate asm/system.h for X86
2012-03-28 18:11:12 +01:00
test_nx.c
x86: Eliminate various 'set but not used' warnings
2011-05-21 19:10:33 +02:00
test_rodata.c
x86, extable: Remove open-coded exception table entries in arch/x86/kernel/test_rodata.c
2012-04-20 13:51:38 -07:00
time.c
MCA: delete all remaining traces of microchannel bus support.
2012-05-17 19:06:13 -04:00
tls.c
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-03-29 14:28:26 -07:00
tls.h
…
topology.c
x86, topology: Debug CPU0 hotplug
2012-11-14 15:28:11 -08:00
trace_clock.c
tracing,x86: Add a TSC trace_clock
2012-11-13 15:48:27 -05:00
traps.c
x86, 64bit: Use a #PF handler to materialize early mappings on demand
2013-01-29 15:20:06 -08:00
tsc_sync.c
x86/tsc: Reduce the TSC sync check time for core-siblings
2012-02-22 11:49:40 +01:00
tsc.c
Merge branch 'fortglx/3.9/time' of git://git.linaro.org/people/jstultz/linux into timers/core
2013-02-04 11:03:03 +01:00
uprobes.c
uprobes: Change handle_swbp() to expose bp_vaddr to handler_chain()
2013-02-08 17:47:11 +01:00
verify_cpu.S
…
vm86_32.c
x86: get rid of pt_regs argument in vm86/vm86old
2013-02-03 18:16:24 -05:00
vmlinux.lds.S
x86, realmode: Move ACPI wakeup to unified realmode code
2012-05-08 11:46:05 -07:00
vsmp_64.c
x86/apic/x2apic: Limit the vector reservation to the user specified mask
2012-07-06 11:00:22 +02:00
vsyscall_64.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2012-12-16 15:40:50 -08:00
vsyscall_emu_64.S
x86-64: Rework vsyscall emulation and add vsyscall= parameter
2011-08-10 19:26:46 -05:00
vsyscall_trace.h
x86-64: Add vsyscall:emulate_vsyscall trace event
2011-08-04 16:13:53 -07:00
x86_init.c
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-02-21 18:06:55 -08:00
x8664_ksyms_64.c
x86: Improve __phys_addr performance by making use of carry flags and inlining
2012-11-16 16:42:08 -08:00
xsave.c
x86, smap: Do not abuse the [f][x]rstor_checking() functions for user space
2012-09-25 15:42:18 -07:00