KVM: nSVM: Move SMI vmexit handling to svm_check_nested_events()

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Unlike VMX, SVM allows a hypervisor to take a SMI vmexit without having
any special SMM-monitor enablement sequence.  Therefore, it has to be
handled like interrupts and NMIs.  Check for an unblocked SMI in
svm_check_nested_events() so that pending SMIs are correctly prioritized
over IRQs and NMIs when the latter events will trigger VM-Exit.

Note that there is no need to test explicitly for SMI vmexits, because
guests always runs outside SMM and therefore can never get an SMI while
they are blocked.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Paolo Bonzini 2020-04-23 08:17:28 -04:00

parent bbdad0b5a7

commit 55714cddbf

3 changed files with 21 additions and 8 deletions

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16

arch/x86/kvm/svm/nested.c

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arch/x86/kvm/svm/svm.c

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5

arch/x86/kvm/svm/svm.h

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