KVM: nVMX: Enforce NMI controls on vmentry of L2 guests

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According to Intel SDM 26.2.1.1, the following rules should be enforced
on vmentry:

 *  If the "NMI exiting" VM-execution control is 0, "Virtual NMIs"
    VM-execution control must be 0.
 *  If the “virtual NMIs” VM-execution control is 0, the “NMI-window
    exiting” VM-execution control must be 0.

This patch enforces these rules when entering an L2 guest.

Signed-off-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
Reviewed-by: Liran Alon <liran.alon@oracle.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>

...

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Krish Sadhukhan 2018-02-20 21:24:39 -05:00 • committed by Radim Krčmář

parent 1389309c81

commit 0c7f650e10

1 changed files with 27 additions and 2 deletions

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arch/x86/kvm/vmx.c

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