KVM: VMX: Refresh list of user return MSRs after setting guest CPUID

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After a CPUID update, refresh the list of user return MSRs that are
loaded into hardware when running the vCPU.  This is necessary to handle
the oddball case where userspace exposes X86_FEATURE_RDTSCP to the guest
after the vCPU is running.

Fixes: 0023ef39dc ("kvm: vmx: Set IA32_TSC_AUX for legacy mode guests")
Fixes: 4e47c7a6d7 ("KVM: VMX: Add instruction rdtscp support for guest")
Reviewed-by: Reiji Watanabe <reijiw@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210713163324.627647-35-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2021-07-13 09:33:12 -07:00 • committed by Paolo Bonzini

parent 400dd54b37

commit 432979b503

1 changed files with 2 additions and 0 deletions

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arch/x86/kvm/vmx/vmx.c

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