KVM: nVMX: Prioritize SMI over nested IRQ/NMI

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Check for an unblocked SMI in vmx_check_nested_events() so that pending
SMIs are correctly prioritized over IRQs and NMIs when the latter events
will trigger VM-Exit.  This also fixes an issue where an SMI that was
marked pending while processing a nested VM-Enter wouldn't trigger an
immediate exit, i.e. would be incorrectly delayed until L2 happened to
take a VM-Exit.

Fixes: 64d6067057 ("KVM: x86: stubs for SMM support")
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200423022550.15113-10-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2020-04-22 19:25:46 -07:00 • committed by Paolo Bonzini

parent 15ff0b450b

commit 1cd2f0b0dd

1 changed files with 6 additions and 0 deletions

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arch/x86/kvm/vmx/nested.c

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