github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-03 12:03:54 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

KVM: x86: allow CPUID 0xC000_0000 to proceed on Zhaoxin CPUs

Browse Source 
Bypass the Centaur-only filter for the CPUID signature leaf so that
processing continues when the CPU vendor is Zhaoxin.

Signed-off-by: Ewan Hai <ewanhai-oc@zhaoxin.com>
Link: https://lore.kernel.org/r/20250818083034.93935-1-ewanhai-oc@zhaoxin.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Ewan Hai 2025-08-18 04:30:34 -04:00 committed by Sean Christopherson
parent 49be82d4ad
commit 1f0654dc75
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/x86/kvm/cpuid.c
View File

@ -1820,7 +1820,8 @@ static int get_cpuid_func(struct kvm_cpuid_array *array, u32 func,
int r;
if (func == CENTAUR_CPUID_SIGNATURE &&
boot_cpu_data.x86_vendor != X86_VENDOR_CENTAUR)
boot_cpu_data.x86_vendor != X86_VENDOR_CENTAUR &&
boot_cpu_data.x86_vendor != X86_VENDOR_ZHAOXIN)
return 0;
r = do_cpuid_func(array, func, type);