| Submitter | Alexander Graf |
|---|---|
| Date | Aug. 17, 2010, 1:57 p.m. |
| Message ID | <1282053481-18787-20-git-send-email-agraf@suse.de> |
| Download | mbox | patch |
| Permalink | /patch/61897/ |
| State | Not Applicable |
| Headers | show |
Comments
Patch
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index 5fbe949..8138d31 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -201,6 +201,9 @@ static void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu, { clear_bit(kvmppc_book3s_vec2irqprio(vec), &vcpu->arch.pending_exceptions); + + if (!vcpu->arch.pending_exceptions) + vcpu->arch.shared->int_pending = 0; } void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec)
When having a decrementor interrupt pending, the dequeuing happens manually through an mtdec instruction. This instruction simply calls dequeue on that interrupt, so the int_pending hint doesn't get updated. This patch enables updating the int_pending hint also on dequeue, thus correctly enabling guests to stay in guest contexts more often. Signed-off-by: Alexander Graf <agraf@suse.de> --- arch/powerpc/kvm/book3s.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)