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9687eb2399379ae4e5b5cc1bccdf893c753dcffb
linux/arch/x86/kernel/cpu
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David Kaplan 9687eb2399 x86/bugs: Add attack vector controls for retbleed 
Use attack vector controls to determine if retbleed mitigation is
required.

Disable SMT if cross-thread protection is desired and STIBP is not
available.

Signed-off-by: David Kaplan <david.kaplan@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/20250707183316.1349127-13-david.kaplan@amd.com
2025-07-11 17:56:41 +02:00
..
mce
Merge branch 'x86/msr' into x86/core, to resolve conflicts
2025-05-13 10:42:06 +02:00
microcode
x86/microcode/AMD: Add TSA microcode SHAs
2025-06-17 17:17:12 +02:00
mtrr
x86/mtrr: Check if fixed-range MTRRs exist in mtrr_save_fixed_ranges()
2025-05-12 13:04:40 +02:00
resctrl
Merge tag 'x86_cache_for_v6.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-05-27 09:53:02 -07:00
sgx
Merge tag 'x86_sgx_for_6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-05-29 21:13:17 -07:00
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
acrn.c
x86/traps: Add sysvec_install() to install a system interrupt handler
2024-01-31 22:02:36 +01:00
amd_cache_disable.c
x86/platform/amd: Move the <asm/amd_nb.h> header to <asm/amd/nb.h>
2025-04-14 09:34:14 +02:00
amd.c
x86/bugs: Add a Transient Scheduler Attacks mitigation
2025-06-17 17:17:02 +02:00
aperfmperf.c
x86/msr: Add explicit includes of <asm/msr.h>
2025-05-02 10:23:47 +02:00
bugs.c
x86/bugs: Add attack vector controls for retbleed
2025-07-11 17:56:41 +02:00
bus_lock.c
x86/msr: Add explicit includes of <asm/msr.h>
2025-05-02 10:23:47 +02:00
cacheinfo.c
x86/cacheinfo: Rename CPUID(0x2) descriptors iterator parameter
2025-05-16 10:49:55 +02:00
centaur.c
x86/cpu: Use common topology code for Centaur and Zhaoxin
2024-02-15 22:07:37 +01:00
common.c
x86/bugs: Add a Transient Scheduler Attacks mitigation
2025-06-17 17:17:02 +02:00
cpu.h
x86/cacheinfo: Move AMD cache_disable_0/1 handling to separate file
2025-03-25 10:22:39 +01:00
cpuid_0x2_table.c
x86/cpu: Consolidate CPUID leaf 0x2 tables
2025-03-25 10:23:04 +01:00
cpuid-deps.c
x86/cpufeatures: Add X86_FEATURE_APX
2025-04-16 09:44:13 +02:00
cyrix.c
x86/CPU: Fix warm boot hang regression on AMD SC1100 SoC systems
2025-02-25 22:44:01 +01:00
debugfs.c
x86/cpu: Prefix hexadecimal values with 0x in cpu_debug_show()
2025-02-27 13:26:53 +01:00
feat_ctl.c
x86/msr: Add explicit includes of <asm/msr.h>
2025-05-02 10:23:47 +02:00
hygon.c
x86/msr: Add explicit includes of <asm/msr.h>
2025-05-02 10:23:47 +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/msr: Rename 'wrmsrl_on_cpu()' to 'wrmsrq_on_cpu()'
2025-04-10 11:59:05 +02:00
intel.c
x86/cpu/intel: Rename CPUID(0x2) descriptors iterator parameter
2025-05-16 10:49:55 +02:00
Makefile
x86/cpu: Consolidate CPUID leaf 0x2 tables
2025-03-25 10:23:04 +01:00
match.c
x86/cpu: Update x86_match_cpu() to also use cpu-type
2025-03-19 11:17:11 +01:00
mkcapflags.sh
x86/cpufeatures: Flip the /proc/cpuinfo appearance logic
2024-06-20 21:04:22 +02:00
mshyperv.c
x86/msr: Add explicit includes of <asm/msr.h>
2025-05-02 10:23:47 +02:00
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
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
proc.c
cpufreq: Allow arch_freq_get_on_cpu to return an error
2025-02-17 18:09:20 +00:00
rdrand.c
x86/msr: Prepare for including <linux/percpu.h> into <asm/msr.h>
2024-03-04 12:01:39 +01:00
scattered.c
x86/bugs: Add a Transient Scheduler Attacks mitigation
2025-06-17 17:17:02 +02:00
topology_amd.c
Merge branch 'x86/msr' into x86/core, to resolve conflicts
2025-05-13 10:42:06 +02:00
topology_common.c
x86/topology: Introduce topology_logical_core_id()
2024-12-02 12:01:35 +01:00
topology_ext.c
x86/cpu/topology: Add support for the AMD 0x80000026 leaf
2024-03-22 11:22:14 +01:00
topology.c
x86/msr: Add explicit includes of <asm/msr.h>
2025-05-02 10:23:47 +02:00
topology.h
x86/cpu/topology: Retrieve cores per package from topology bitmaps
2024-02-15 22:07:45 +01:00
transmeta.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tsx.c
x86/msr: Add explicit includes of <asm/msr.h>
2025-05-02 10:23:47 +02:00
umc.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
umwait.c
x86/msr: Replace wrmsr(msr, low, 0) with wrmsrq(msr, low)
2025-05-02 10:36:36 +02:00
vmware.c
x86/vmware: Parse MP tables for SEV-SNP enabled guests under VMware hypervisors
2025-03-13 19:01:09 +01:00
vortex.c
x86/CPU: Add support for Vortex CPUs
2021-10-21 15:49:07 +02:00
zhaoxin.c
x86/msr: Add explicit includes of <asm/msr.h>
2025-05-02 10:23:47 +02:00