KVM: PPC: align vcpu_kick with x86
Our vcpu kick implementation differs a bit from x86 which resulted in us not
disabling preemption during the kick. Get it a bit closer to what x86 does.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index fd8d3b1..e1ef4d6 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -558,12 +558,17 @@
void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
{
+ int me;
+ int cpu = vcpu->cpu;
+
+ me = get_cpu();
if (waitqueue_active(&vcpu->wq)) {
wake_up_interruptible(vcpu->arch.wqp);
vcpu->stat.halt_wakeup++;
- } else if (vcpu->cpu != -1) {
+ } else if (cpu != me && cpu != -1) {
smp_send_reschedule(vcpu->cpu);
}
+ put_cpu();
}
int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq)