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 <[email protected]> --- arch/powerpc/kvm/book3s.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) 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) -- 1.6.0.2 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
