redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

KVM: PPC: Update int_pending also on dequeue 

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>
hifive-unleashed-5.1
Alexander Graf 2010-08-05 12:24:40 +02:00 committed by Avi Kivity
parent 512ba59ed9
commit 9ee18b1e08
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/powerpc/kvm/book3s.c
View File

@ -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)