kvm: nVMX: Restrict VMX capability MSR changes

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Disallow changes to the VMX capability MSRs while the vCPU is in VMX
operation. Although this does break the existing API, it helps to
avoid some potentially tricky situations for which there is no
architected behavior.

Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Jim Mattson 2018-05-29 09:11:32 -07:00 • committed by Paolo Bonzini

parent c5ce8235cf

commit a943ac50d1

1 changed files with 7 additions and 0 deletions

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arch/x86/kvm/vmx.c

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