Commit 101d3da0 authored by Eric Auger's avatar Eric Auger Committed by Christoffer Dall

KVM: arm/arm64: check power_off in critical section before VCPU run

In case a vcpu off PSCI call is called just after we executed the
vcpu_sleep check, we can enter the guest although power_off
is set. Let's check the power_off state in the critical section,
just before entering the guest.
Signed-off-by: default avatarEric Auger <eric.auger@linaro.org>
Reported-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
parent 4f5f1dc0
...@@ -560,7 +560,8 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run) ...@@ -560,7 +560,8 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
run->exit_reason = KVM_EXIT_INTR; 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(); local_irq_enable();
kvm_timer_sync_hwstate(vcpu); kvm_timer_sync_hwstate(vcpu);
kvm_vgic_sync_hwstate(vcpu); kvm_vgic_sync_hwstate(vcpu);
......
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