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linux/arch/x86/kernel/cpu
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Chenyi Qiang ffa6482e46 x86/bus_lock: Don't assume the init value of DEBUGCTLMSR.BUS_LOCK_DETECT to be zero 
It's possible that this kernel has been kexec'd from a kernel that
enabled bus lock detection, or (hypothetically) BIOS/firmware has set
DEBUGCTLMSR_BUS_LOCK_DETECT.

Disable bus lock detection explicitly if not wanted.

Fixes: ebb1064e7c2e ("x86/traps: Handle #DB for bus lock")
Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20220802033206.21333-1-chenyi.qiang@intel.com
2022-08-02 13:42:00 +02:00
..
mce
x86/mce: Check whether writes to MCA_STATUS are getting ignored
2022-06-28 12:08:10 +02:00
microcode
x86/microcode: Remove unnecessary perf callback
2022-05-31 09:31:19 +02:00
mtrr
x86/mtrr: Replace deprecated CPU-hotplug functions.
2021-08-10 14:46:27 +02:00
resctrl
x86: Replace cpumask_weight() with cpumask_empty() where appropriate
2022-04-10 22:35:38 +02:00
sgx
x86/sgx: Set active memcg prior to shmem allocation
2022-06-02 10:58:47 -07:00
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
acrn.c
x86/acrn: Introduce acrn_cpuid_base() and hypervisor feature bits
2021-02-09 10:58:18 +01:00
amd.c
x86/retbleed: Add fine grained Kconfig knobs
2022-06-29 17:43:41 +02:00
aperfmperf.c
x86/aperfmperf: Integrate the fallback code from show_cpuinfo()
2022-04-27 20:22:20 +02:00
bugs.c
x86/bugs: Do not enable IBPB at firmware entry when IBPB is not available
2022-07-29 10:02:35 +02:00
cacheinfo.c
sched: Add cluster scheduler level for x86
2021-10-15 11:25:16 +02:00
centaur.c
x86/cpu/centaur: Add Centaur family >=7 CPUs initialization support
2020-09-11 10:53:19 +02:00
common.c
x86/bugs: Add Cannon lake to RETBleed affected CPU list
2022-07-07 12:33:53 +02:00
cpu.h
x86/cpu/amd: Add Spectral Chicken
2022-06-27 10:34:00 +02:00
cpuid-deps.c
x86/fpu: Optimize out sigframe xfeatures when in init state
2021-11-03 22:42:35 +01:00
cyrix.c
x86: Fix various typos in comments
2021-03-18 15:31:53 +01:00
feat_ctl.c
x86/cpu/intel: Allow SGX virtualization without Launch Control support
2021-04-06 09:43:41 +02:00
hygon.c
x86/cpu/amd: Add Spectral Chicken
2022-06-27 10:34:00 +02:00
hypervisor.c
x86/paravirt: Remove const mark from x86_hyper_xen_hvm variable
2019-07-17 08:09:59 +02:00
intel_epb.c
x86: intel_epb: Allow model specific normal EPB value
2022-01-04 16:37:23 +01:00
intel_pconfig.c
…
intel.c
x86/bus_lock: Don't assume the init value of DEBUGCTLMSR.BUS_LOCK_DETECT to be zero
2022-08-02 13:42:00 +02:00
Makefile
x86/CPU: Add support for Vortex CPUs
2021-10-21 15:49:07 +02:00
match.c
x86/cpu: Add a steppings field to struct x86_cpu_id
2020-04-20 12:19:21 +02:00
mkcapflags.sh
x86/cpu: Print VMX flags in /proc/cpuinfo using VMX_FEATURES_*
2020-01-13 18:36:02 +01:00
mshyperv.c
hyperv-next for 5.19
2022-05-28 11:39:01 -07:00
perfctr-watchdog.c
x86/nmi_watchdog: Fix old-style NMI watchdog regression on old Intel CPUs
2021-06-10 10:04:40 +02:00
powerflags.c
…
proc.c
x86/aperfmperf: Integrate the fallback code from show_cpuinfo()
2022-04-27 20:22:20 +02:00
rdrand.c
x86/rdrand: Sanity-check RDRAND output
2019-10-01 19:55:32 +02:00
scattered.c
x86/speculation: Disable RRSBA behavior
2022-07-09 13:12:45 +02:00
topology.c
x86: Fix various typos in comments
2021-03-18 15:31:53 +01:00
transmeta.c
…
tsx.c
x86/tsx: Disable TSX development mode at boot
2022-04-11 09:58:40 +02:00
umc.c
…
umwait.c
KVM: VMX: Stop context switching MSR_IA32_UMWAIT_CONTROL
2020-06-22 20:54:57 -04:00
vmware.c
x86/vmware: Use BIT() macro for shifting
2022-06-22 11:23:14 +02:00
vortex.c
x86/CPU: Add support for Vortex CPUs
2021-10-21 15:49:07 +02:00
zhaoxin.c
x86/cpu: Reinitialize IA32_FEAT_CTL MSR on BSP during wakeup
2020-06-15 14:18:37 +02:00