[PATCH 2/2] KVM: x86: fix SMI to halted VCPU

From: Paolo Bonzini
Date: Tue Oct 13 2015 - 06:34:29 EST


An SMI to a halted VCPU must wake it up, hence a VCPU with a pending
SMI must be considered runnable.

Fixes: 64d6067057d9658acb8675afcfba549abdb7fc16
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
---
arch/x86/kvm/x86.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ad82420761dd..7b481470602a 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7781,6 +7781,9 @@ static inline bool kvm_vcpu_has_events(struct kvm_vcpu *vcpu)
if (atomic_read(&vcpu->arch.nmi_queued))
return true;

+ if (test_bit(KVM_REQ_SMI, &vcpu->requests))
+ return true;
+
if (kvm_arch_interrupt_allowed(vcpu) &&
kvm_cpu_has_interrupt(vcpu))
return true;
--
1.8.3.1

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