linux/arch/x86
Sean Christopherson 8cb4a9a82b x86/cpufeatures: Add CPUID_LNX_5 to track recently added Linux-defined word
Add CPUID_LNX_5 to track cpufeatures' word 21, and add the appropriate
compile-time assert in KVM to prevent direct lookups on the features in
CPUID_LNX_5.  KVM uses X86_FEATURE_* flags to manage guest CPUID, and so
must translate features that are scattered by Linux from the Linux-defined
bit to the hardware-defined bit, i.e. should never try to directly access
scattered features in guest CPUID.

Opportunistically add NR_CPUID_WORDS to enum cpuid_leafs, along with a
compile-time assert in KVM's CPUID infrastructure to ensure that future
additions update cpuid_leafs along with NCAPINTS.

No functional change intended.

Fixes: 7f274e609f ("x86/cpufeatures: Add new word for scattered features")
Cc: Sandipan Das <sandipan.das@amd.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-04-04 17:42:19 -07:00
..
boot x86/efistub: Add missing boot_params for mixed mode compat entry 2024-03-26 08:45:27 +01:00
coco x86/sev: Fix position dependent variable references in startup code 2024-02-06 16:38:42 +01:00
configs x86/config: Fix warning for 'make ARCH=x86_64 tinyconfig' 2024-03-21 10:09:41 +01:00
crypto This update includes the following changes: 2024-01-10 12:23:43 -08:00
entry x86/vdso: Fix rethunk patching for vdso-image-x32.o too 2024-03-26 10:47:14 +01:00
events perf/x86/amd/core: Define a proper ref-cycles event for Zen 4 and later 2024-03-26 09:04:21 +01:00
hyperv hyperv-next for v6.9 2024-03-21 10:01:02 -07:00
ia32
include x86/cpufeatures: Add CPUID_LNX_5 to track recently added Linux-defined word 2024-04-04 17:42:19 -07:00
kernel Including fixes from netfilter, bluetooth and bpf. 2024-04-04 14:49:10 -07:00
kvm x86/cpufeatures: Add CPUID_LNX_5 to track recently added Linux-defined word 2024-04-04 17:42:19 -07:00
lib x86/retpoline: Do the necessary fixup to the Zen3/4 srso return thunk for !SRSO 2024-04-03 10:12:38 -07:00
math-emu
mm x86/sev: Skip ROM range scans and validation for SEV-SNP guests 2024-03-26 15:22:35 +01:00
net x86/bpf: Fix IP for relocating call depth accounting 2024-04-01 20:37:56 -07:00
pci PCI: Disable D3cold on Asus B1400 PCI-NVMe bridge 2024-02-29 13:25:24 -06:00
platform xen: branch for v6.9-rc1 2024-03-19 08:48:09 -07:00
power - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min 2024-03-14 18:03:09 -07:00
purgatory x86/bugs: Rename CONFIG_RETPOLINE => CONFIG_MITIGATION_RETPOLINE 2024-01-10 10:52:28 +01:00
ras
realmode x86/trampoline: Bypass compat mode in trampoline_start64() if not needed 2024-02-23 08:40:29 -08:00
tools x86, relocs: Ignore relocations in .notes section 2024-02-29 22:34:42 -08:00
um This pull request contains the following changes for UML: 2024-01-17 10:44:34 -08:00
video
virt x86/build: Use obj-y to descend into arch/x86/virt/ 2024-03-30 10:41:49 +01:00
xen Kbuild updates for v6.9 2024-03-21 14:41:00 -07:00
.gitignore
Kbuild x86/build: Use obj-y to descend into arch/x86/virt/ 2024-03-30 10:41:49 +01:00
Kconfig x86/percpu: Disable named address spaces for KCSAN 2024-03-25 12:17:01 +01:00
Kconfig.assembler
Kconfig.cpu x86/Kconfig: Transmeta Crusoe is CPU family 5, not 6 2024-02-09 16:28:19 +01:00
Kconfig.debug
Makefile x86/build: Use obj-y to descend into arch/x86/virt/ 2024-03-30 10:41:49 +01:00
Makefile_32.cpu
Makefile.postlink
Makefile.um