In case KVM_SET_MP_STATE ioctl is called just after we executed the
vcpu_sleep check, we can enter the guest although KVM_MP_STATE_STOPPED
is set. Let's check the power_off state in the critical section,
just before entering the guest.
Signed-off-by: Eric Auger <eric.auger@xxxxxxxxxx>
Reported-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx>
---
arch/arm/kvm/arm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index 4f50be3..cc404a8 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -555,7 +555,8 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
run->exit_reason = KVM_EXIT_INTR;
}
- if (ret <= 0 || need_new_vmid_gen(vcpu->kvm)) {
+ if (ret <= 0 || need_new_vmid_gen(vcpu->kvm) ||
+ vcpu->arch.power_off) {
local_irq_enable();
kvm_vgic_sync_hwstate(vcpu);
preempt_enable();
--
1.9.1
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