KVM: pass through CPUID(0x80000006)

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Return the host's L2 cache and TLB information for CPUID.0x80000006
instead of zeroing out the entry as part of KVM_GET_SUPPORTED_CPUID.
This allows a userspace VMM to feed KVM_GET_SUPPORTED_CPUID's output
directly into KVM_SET_CPUID2 (without breaking the guest).

Signed-off-by: Eric Northup (Google) <digitaleric@gmail.com>
Signed-off-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Jon Cargille <jcargill@google.com>
Message-Id: <20200415012320.236065-1-jcargill@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Eric Northup 2020-04-14 18:23:20 -07:00 • committed by Paolo Bonzini

parent 24647e0a39

commit 43d05de2be

1 changed files with 3 additions and 0 deletions

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arch/x86/kvm/cpuid.c

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