kvm: nVMX: VMWRITE checks unsupported field before read-only field

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commit 693e02cc24 upstream.

According to the SDM, VMWRITE checks to see if the secondary source
operand corresponds to an unsupported VMCS field before it checks to
see if the secondary source operand corresponds to a VM-exit
information field and the processor does not support writing to
VM-exit information fields.

Fixes: 49f705c532 ("KVM: nVMX: Implement VMREAD and VMWRITE")
Signed-off-by: Jim Mattson <jmattson@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Shier <pshier@google.com>
Reviewed-by: Oliver Upton <oupton@google.com>
Reviewed-by: Jon Cargille <jcargill@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Jim Mattson 2019-12-06 15:46:36 -08:00 • committed by Greg Kroah-Hartman

parent 75ef7bf39e

commit 65931e6cd4

1 changed files with 6 additions and 5 deletions

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arch/x86/kvm/vmx/nested.c

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