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kvm: x86: Include CPUID leaf 0x8000001e in kvm's supported CPUID

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Kvm now supports extended CPUID functions through 0x8000001f.  CPUID
leaf 0x8000001e is AMD's Processor Topology Information leaf. This
contains similar information to CPUID leaf 0xb (Intel's Extended
Topology Enumeration leaf), and should be included in the output of
KVM_GET_SUPPORTED_CPUID, even though userspace is likely to override
some of this information based upon the configuration of the
particular VM.

Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Borislav Petkov <bp@suse.de>
Fixes: 8765d75329 ("KVM: X86: Extend CPUID range to include new leaf")
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Marc Orr <marcorr@google.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Jim Mattson 2019-03-27 13:15:37 -07:00 committed by Paolo Bonzini
parent 32a243df82
commit 382409b4c4
1 changed files with 1 additions and 0 deletions
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arch/x86/kvm/cpuid.c
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@ -702,6 +702,7 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
entry->ecx = entry->edx = 0;
break;
case 0x8000001a:
case 0x8000001e:
break;
/*Add support for Centaur's CPUID instruction*/
case 0xC0000000: