From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Graf Date: Fri, 13 Jan 2012 14:31:25 +0000 Subject: [PATCH 22/52] KVM: PPC: align vcpu_kick with x86 Message-Id: <1326465115-5976-23-git-send-email-agraf@suse.de> List-Id: References: <1326465115-5976-1-git-send-email-agraf@suse.de> In-Reply-To: <1326465115-5976-1-git-send-email-agraf@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kvm-ppc@vger.kernel.org Cc: kvm list , Avi Kivity , Marcelo Tosatti 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 --- arch/powerpc/kvm/powerpc.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) 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) -- 1.6.0.2