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linux/arch/x86/kernel/cpu
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Eric Biggers 9543f6e266 x86/cpufeatures: Fix dependencies for GFNI, VAES, and VPCLMULQDQ 
Fix cpuid_deps[] to list the correct dependencies for GFNI, VAES, and
VPCLMULQDQ.  These features don't depend on AVX512, and there exist CPUs
that support these features but not AVX512.  GFNI actually doesn't even
depend on AVX.

This prevents GFNI from being unnecessarily disabled if AVX is disabled
to mitigate the GDS vulnerability.

This also prevents all three features from being unnecessarily disabled
if AVX512VL (or its dependency AVX512F) were to be disabled, but it
looks like there isn't any case where this happens anyway.

Fixes: c128dbfa0f ("x86/cpufeatures: Enable new SSE/AVX/AVX512 CPU features")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/r/20240417060434.47101-1-ebiggers@kernel.org
 		2024-04-18 17:27:52 +02:00
..
mce x86/mce: Make sure to grab mce_sysfs_mutex in set_bank() 2024-04-04 17:25:15 +02:00
microcode x86/cpu/topology: Get rid of cpuinfo::x86_max_cores 2024-02-16 15:51:32 +01:00
mtrr x86/CPU/AMD: Track SNP host status with cc_platform_*() 2024-04-04 10:40:30 +02:00
resctrl x86/resctrl: Fix uninitialized memory read when last CPU of domain goes offline 2024-04-03 09:30:01 +02:00
sgx arch/x86: Fix typos 2024-01-03 11:46:22 +01:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
Makefile x86/cpu/topology: Move registration out of APIC code 2024-02-15 22:07:41 +01:00
acrn.c x86/traps: Add sysvec_install() to install a system interrupt handler 2024-01-31 22:02:36 +01:00
amd.c x86/cpu/amd: Move TOPOEXT enablement into the topology parser 2024-04-12 12:05:54 +02:00
aperfmperf.c x86/aperfmperf: Erase stale arch_freq_scale values when disabling frequency invariance readings 2023-01-16 10:19:15 +01:00
bugs.c x86/bugs: Fix BHI retpoline check 2024-04-14 11:10:05 +02:00
cacheinfo.c - Relax the PAT MSR programming which was unnecessarily using the MTRR 2024-03-11 17:27:12 -07:00
centaur.c x86/cpu: Use common topology code for Centaur and Zhaoxin 2024-02-15 22:07:37 +01:00
common.c x86/bugs: Rename various 'ia32_cap' variables to 'x86_arch_cap_msr' 2024-04-11 10:30:33 +02:00
cpu.h x86/cpu: Use common topology code for HYGON 2024-02-15 22:07:38 +01:00
cpuid-deps.c x86/cpufeatures: Fix dependencies for GFNI, VAES, and VPCLMULQDQ 2024-04-18 17:27:52 +02:00
cyrix.c x86/cyrix: include header linux/isa-dma.h 2022-07-26 14:03:12 -05:00
debugfs.c x86/cpu/topology: Get rid of cpuinfo::x86_max_cores 2024-02-16 15:51:32 +01:00
feat_ctl.c x86/cpu: Add a VMX flag to enumerate 5-level EPT support to userspace 2024-02-22 16:03:56 -08:00
hygon.c x86/cpu: Use common topology code for HYGON 2024-02-15 22:07:38 +01:00
hypervisor.c x86/paravirt: Remove const mark from x86_hyper_xen_hvm variable 2019-07-17 08:09:59 +02:00
intel.c Merge branch 'x86/urgent' into x86/apic, to resolve conflicts 2024-02-27 10:09:49 +01:00
intel_epb.c x86/cpu/intel_epb: Don't rely on link order 2023-11-24 13:54:31 +01:00
intel_pconfig.c x86/msr: Prepare for including <linux/percpu.h> into <asm/msr.h> 2024-03-04 12:01:39 +01:00
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 v6.9 2024-03-21 10:01:02 -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/cpu: Move cpu_core_id into topology info 2023-10-10 14:38:17 +02:00
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/bhi: Define SPEC_CTRL_BHI_DIS_S 2024-04-08 19:27:05 +02:00
topology.c x86/topology: Don't update cpu_possible_map in topo_set_cpuids() 2024-04-10 15:31:38 +02:00
topology.h x86/cpu/topology: Retrieve cores per package from topology bitmaps 2024-02-15 22:07:45 +01:00
topology_amd.c x86/cpu/amd: Move TOPOEXT enablement into the topology parser 2024-04-12 12:05:54 +02:00
topology_common.c x86/topology: Don't evaluate logical IDs during early boot 2024-03-23 12:28:06 +01:00
topology_ext.c x86/cpu: Provide a sane leaf 0xb/0x1f parser 2024-02-15 22:07:37 +01:00
transmeta.c
…
tsx.c x86/cpu: Remove redundant extern x86_read_arch_cap_msr() 2023-01-10 12:40:24 +01:00
umc.c
…
umwait.c x86/umwait: move to use bus_get_dev_root() 2023-03-17 15:29:29 +01:00
vmware.c sched/clock/x86: Mark sched_clock() noinstr 2023-01-31 15:01:47 +01:00
vortex.c x86/CPU: Add support for Vortex CPUs 2021-10-21 15:49:07 +02:00
zhaoxin.c x86/cpu: Use common topology code for Centaur and Zhaoxin 2024-02-15 22:07:37 +01:00