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| author | Like Xu <likexu@tencent.com> | 2022-01-17 15:45:31 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-01-19 12:09:25 -0500 |
| commit | e9737468829c2f6abc0c67e5372f8878dff11653 (patch) | |
| tree | 04048690d06ce1c577d22010672507e59b901abe /tools | |
| parent | 6ff94f27fd47847d6ecb9302f9d3bd1ca991a17f (diff) | |
KVM: x86/cpuid: Clear XFD for component i if the base feature is missing
According to Intel extended feature disable (XFD) spec, the sub-function i
(i > 1) of CPUID function 0DH enumerates "details for state component i.
ECX[2] enumerates support for XFD support for this state component."
If KVM does not report F(XFD) feature (e.g. due to CONFIG_X86_64),
then the corresponding XFD support for any state component i
should also be removed. Translate this dependency into KVM terms.
Fixes: 690a757d610e ("kvm: x86: Add CPUID support for Intel AMX")
Signed-off-by: Like Xu <likexu@tencent.com>
Message-Id: <20220117074531.76925-1-likexu@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions