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KVM: VMX: avoid running vmx_handle_exit_irqoff in case of emulation

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commit 81b4b56d4f upstream.

If we are emulating an invalid guest state, we don't have a correct
exit reason, and thus we shouldn't do anything in this function.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210826095750.1650467-2-mlevitsk@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 95b5a48c4f ("KVM: VMX: Handle NMIs, #MCs and async #PFs in common irqs-disabled fn", 2019-06-18)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Maxim Levitsky
2021-08-26 12:57:49 +03:00
committed by Greg Kroah-Hartman
parent c06e6ff2fc
commit bf36224463
1 changed files with 3 additions and 0 deletions
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3
arch/x86/kvm/vmx/vmx.c
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@@ -6396,6 +6396,9 @@ static void vmx_handle_exit_irqoff(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
if (vmx->emulation_required)
return;
if (vmx->exit_reason.basic == EXIT_REASON_EXTERNAL_INTERRUPT)
handle_external_interrupt_irqoff(vcpu);
else if (vmx->exit_reason.basic == EXIT_REASON_EXCEPTION_NMI)