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authorScott Wood <scottwood@freescale.com>2011-11-09 00:23:27 (GMT)
committerAvi Kivity <avi@redhat.com>2012-03-05 12:52:26 (GMT)
commit29ac26efbdc651303643025c83009ce5766c1676 (patch)
tree463d9c10951b527c6459b2e0d66088e71841f807 /arch/powerpc/kvm
parentc59a6a3e4e5976a938e21faf3da65a2784187aa7 (diff)
downloadlinux-fsl-qoriq-29ac26efbdc651303643025c83009ce5766c1676.tar.xz
KVM: PPC: booke: Fix int_pending calculation for MSR[EE] paravirt
int_pending was only being lowered if a bit in pending_exceptions was cleared during exception delivery -- but for interrupts, we clear it during IACK/TSR emulation. This caused paravirt for enabling MSR[EE] to be ineffective. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc/kvm')
-rw-r--r--arch/powerpc/kvm/booke.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 557f028..8dfc59a 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -285,7 +285,6 @@ static int kvmppc_booke_irqprio_deliver(struct kvm_vcpu *vcpu,
static void kvmppc_core_check_exceptions(struct kvm_vcpu *vcpu)
{
unsigned long *pending = &vcpu->arch.pending_exceptions;
- unsigned long old_pending = vcpu->arch.pending_exceptions;
unsigned int priority;
priority = __ffs(*pending);
@@ -299,10 +298,7 @@ static void kvmppc_core_check_exceptions(struct kvm_vcpu *vcpu)
}
/* Tell the guest about our interrupt status */
- if (*pending)
- vcpu->arch.shared->int_pending = 1;
- else if (old_pending)
- vcpu->arch.shared->int_pending = 0;
+ vcpu->arch.shared->int_pending = !!*pending;
}
/* Check pending exceptions and deliver one, if possible. */