WSL2-Linux-Kernel/arch/x86/kernel
Borislav Petkov 6b0f43ddfa x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit
fbd8b1819e turns off the bit for
/proc/cpuinfo. However, a proper/full fix would be to additionally
turn off the bit in the CPUID output so that future callers get
correct CPU features info.

Do that by basically reversing what the BIOS wrongfully does at boot.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
LKML-Reference: <1251705011-18636-3-git-send-email-petkovbb@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-08-31 15:14:29 -07:00
..
acpi Merge branches 'acerhdf', 'acpi-pci-bind', 'bjorn-pci-root', 'bugzilla-12904', 'bugzilla-13121', 'bugzilla-13396', 'bugzilla-13533', 'bugzilla-13612', 'c3_lock', 'hid-cleanups', 'misc-2.6.31', 'pdc-leak-fix', 'pnpacpi', 'power_nocheck', 'thinkpad_acpi', 'video' and 'wmi' into release 2009-06-24 01:19:50 -04:00
apic x86: don't send an IPI to the empty set of CPU's 2009-08-21 09:23:57 -07:00
cpu x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit 2009-08-31 15:14:29 -07:00
.gitignore
Makefile gcov: exclude code operating in userspace from profiling 2009-07-06 13:57:03 -07:00
alternative.c
amd_iommu.c x86: Mark device_nb as static and fix NULL noise 2009-07-01 16:52:53 +02:00
amd_iommu_init.c amd-iommu: set evt_buf_size correctly 2009-07-02 18:32:05 +02:00
aperture_64.c
apm_32.c x86: Work around compilation warning in arch/x86/kernel/apm_32.c 2009-08-04 16:34:23 +02:00
asm-offsets.c
asm-offsets_32.c lguest: optimize by coding restore_flags and irq_enable in assembler. 2009-06-12 22:27:03 +09:30
asm-offsets_64.c x86, boot: make kernel_alignment adjustable; new bzImage fields 2009-05-11 17:44:39 -07:00
audit_64.c
bios_uv.c
bootflag.c
check.c
cpuid.c Driver Core: x86: add nodename for cpuid and msr drivers. 2009-06-15 21:30:25 -07:00
crash.c x86: disable IOMMUs on kernel crash 2009-06-15 15:20:40 +02:00
crash_dump_32.c
crash_dump_64.c
doublefault_32.c
ds.c x86, ds: support Core i7 2009-04-07 13:36:36 +02:00
ds_selftest.c x86, ds: fix buffer alignment in debug store selftest 2009-04-24 10:18:51 +02:00
ds_selftest.h
dumpstack.c x86: Add sysctl to allow panic on IOCK NMI error 2009-06-25 22:06:11 +02:00
dumpstack.h x86: avoid multiple declaration of kstack_depth_to_print 2009-04-14 11:45:33 +02:00
dumpstack_32.c perf_counter: Ignore the nmi call frames in the x86-64 backtraces 2009-07-01 22:37:23 +02:00
dumpstack_64.c perf_counter: Ignore the nmi call frames in the x86-64 backtraces 2009-07-01 22:37:23 +02:00
e820.c Remove multiple KERN_ prefixes from printk formats 2009-07-08 10:30:03 -07:00
early-quirks.c x86 early quirks: eliminate unused function 2009-04-08 14:16:32 +02:00
early_printk.c
efi.c x86: fix buffer overflow in efi_init() 2009-08-09 01:08:42 -07:00
efi_32.c
efi_64.c x86: Make 64-bit efi_ioremap use ioremap on MMIO regions 2009-08-03 13:34:25 -07:00
efi_stub_32.S
efi_stub_64.S
entry_32.S Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-20 10:56:46 -07:00
entry_64.S function-graph: add stack frame test 2009-06-18 18:40:18 -04:00
ftrace.c function-graph: add stack frame test 2009-06-18 18:40:18 -04:00
geode_32.c
head.c
head32.c
head64.c
head_32.S x86: fix section mismatch for i386 init code 2009-07-27 14:18:46 -07:00
head_64.S x86: de-assembler-ize asm/desc.h 2009-06-17 21:35:10 -07:00
hpet.c x86: hpet: Mark per cpu interrupts IRQF_TIMER to prevent resume failure 2009-06-14 18:24:29 +02:00
i386_ksyms_32.c
i387.c
i8237.c
i8253.c time: move PIT_TICK_RATE to linux/timex.h 2009-06-16 19:47:27 -07:00
i8259.c
init_task.c mm: consolidate init_mm definition 2009-06-16 19:47:28 -07:00
io_delay.c
ioport.c
irq.c Merge branch 'linus' into x86/mce3 2009-06-11 23:31:52 +02:00
irq_32.c
irq_64.c
irqinit.c x86, mce: Rename incorrect macro name "CONFIG_X86_THRESHOLD" 2009-07-21 21:43:22 -07:00
k8.c
kdebugfs.c
kgdb.c Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 15:49:10 -07:00
kprobes.c
kvm.c x86, kvm: Fix section mismatches in kvm.c 2009-07-03 14:34:22 +02:00
kvmclock.c clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
ldt.c
machine_kexec_32.c x86, kexec: fix crashdump panic with CONFIG_KEXEC_JUMP 2009-05-07 22:01:05 -07:00
machine_kexec_64.c x86, kexec: fix crashdump panic with CONFIG_KEXEC_JUMP 2009-05-07 22:01:05 -07:00
mca_32.c
mfgpt_32.c x86: geode: Mark mfgpt irq IRQF_TIMER to prevent resume failure 2009-07-24 08:42:52 +02:00
microcode_amd.c x86, microcode: Simplify vfree() use 2009-06-07 16:35:11 +02:00
microcode_core.c Driver Core: misc: add nodename support for misc devices. 2009-06-15 21:30:25 -07:00
microcode_intel.c x86: microcode: use smp_call_function_single instead of set_cpus_allowed, cleanup of synchronization logic 2009-05-12 10:36:44 +02:00
mmconf-fam10h_64.c
module.c module: cleanup FIXME comments about trimming exception table entries. 2009-06-12 21:47:05 +09:30
mpparse.c x86, irq: don't call mp_config_acpi_gsi() if update_mptable is not enabled 2009-05-18 09:33:29 +02:00
msr.c Driver Core: x86: add nodename for cpuid and msr drivers. 2009-06-15 21:30:25 -07:00
olpc.c
paravirt-spinlocks.c
paravirt.c x86, msr: Rewrite AMD rd/wrmsr variants 2009-08-31 15:14:28 -07:00
paravirt_patch_32.c
paravirt_patch_64.c
pci-calgary_64.c x86: calgary: remove IOMMU_DEBUG 2009-04-14 13:03:36 +02:00
pci-dma.c intel-iommu: Make iommu=pt work on i386 too 2009-07-01 18:56:16 +01:00
pci-gart_64.c Remove multiple KERN_ prefixes from printk formats 2009-07-08 10:30:03 -07:00
pci-nommu.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
pci-swiotlb.c Merge git://git.infradead.org/~dwmw2/iommu-2.6.31 2009-06-22 21:38:22 -07:00
pcspeaker.c
pmtimer_64.c
probe_roms_32.c
process.c kmemcheck: add mm functions 2009-06-15 12:40:03 +02:00
process_32.c Merge branch 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 19:53:40 -07:00
process_64.c Merge branch 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 19:53:40 -07:00
ptrace.c x86, bts, mm: clean up buffer allocation 2009-04-24 10:18:52 +02:00
pvclock.c x86: Fix warning in pvclock.c 2009-07-14 16:25:05 +02:00
quirks.c Merge branch 'linus' into x86/cpu 2009-06-07 12:22:15 +02:00
reboot.c x86: Add reboot quirk for every 5 series MacBook/Pro 2009-08-10 20:59:42 +02:00
reboot_fixups_32.c
relocate_kernel_32.S
relocate_kernel_64.S
rtc.c
scx200_32.c
setup.c x86: Add quirk for Intel DG45ID board to avoid low memory corruption 2009-07-18 13:38:29 +02:00
setup_percpu.c percpu, sparc64: fix sparse possible cpu map handling 2009-08-14 13:20:53 +09:00
signal.c Merge branch 'linus' into x86/mce3 2009-06-11 23:31:52 +02:00
smp.c Merge branch 'linus' into x86/mce3 2009-06-11 23:31:52 +02:00
smpboot.c x86: make zap_low_mapping could be used early 2009-06-12 13:50:24 +03:00
stacktrace.c x86: add save_stack_trace_bp() for tracing from a specific stack frame 2009-06-12 23:01:05 +02:00
step.c
sys_i386_32.c
sys_x86_64.c
syscall_64.c
syscall_table_32.S Merge branch 'core/signal' into perfcounters/core 2009-04-30 21:16:49 +02:00
tce_64.c
test_nx.c
test_rodata.c
time_32.c
time_64.c
tlb_uv.c x86: Fix UV BAU destination subnode id 2009-08-15 11:58:02 +02:00
tls.c
tls.h
topology.c
trampoline.c
trampoline_32.S
trampoline_64.S
traps.c x86: Add sysctl to allow panic on IOCK NMI error 2009-06-25 22:06:11 +02:00
tsc.c x86: Fix serialization in pit_expect_msb() 2009-08-10 19:56:57 +02:00
tsc_sync.c x86: clean up arch/x86/kernel/tsc_sync.c a bit 2009-05-07 09:32:10 +02:00
uv_irq.c
uv_sysfs.c x86: prevent /sys/firmware/sgi_uv from being created on non-uv systems 2009-04-08 14:58:10 +02:00
uv_time.c uv_time: add parameter to uv_read_rtc() 2009-04-22 17:41:25 +02:00
verify_cpu_64.S
visws_quirks.c
vm86_32.c Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 16:15:14 -07:00
vmi_32.c x86: Fix VMI && stack protector 2009-08-05 10:20:29 +02:00
vmiclock_32.c clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
vmlinux.lds.S x86: Fix assert syntax in vmlinux.lds.S 2009-08-03 14:44:54 -07:00
vsmp_64.c
vsyscall_64.c x86: move rdtsc_barrier() into the TSC vread method 2009-05-28 14:15:54 +02:00
x8664_ksyms_64.c
xsave.c x86-64: fix FPU corruption with signals and preemption 2009-04-20 14:33:00 -07:00