From: Scott Wood Date: Wed, 9 Nov 2011 00:23:27 +0000 (-0600) Subject: KVM: PPC: booke: Fix int_pending calculation for MSR[EE] paravirt X-Git-Tag: v3.4-rc1~59^2~94 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=29ac26efbdc651303643025c83009ce5766c1676;p=profile%2Fivi%2Fkernel-adaptation-intel-automotive.git 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 Signed-off-by: Alexander Graf Signed-off-by: Avi Kivity --- 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. */