From ae21216bece0a623d09980c120b9c98790a860b9 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Fri, 9 Dec 2011 15:20:46 +0100 Subject: [PATCH] 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 Signed-off-by: Avi Kivity --- arch/powerpc/kvm/powerpc.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) 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 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run) 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) -- 2.7.4