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| author | Alexander Graf <agraf@suse.de> | 2012-02-15 13:28:48 +0000 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-04-08 12:54:50 +0300 |
| commit | 4ab969199ec6a14604ceaffb21fe78cc4881d3b8 (patch) | |
| tree | 9686269b554aaed9f195cff043fd737ec67b024e /arch/powerpc/kvm/booke.c | |
| parent | 73196cd364a2d972d73fa08da9d81ca3215bed68 (diff) | |
| download | op-kernel-dev-4ab969199ec6a14604ceaffb21fe78cc4881d3b8.zip op-kernel-dev-4ab969199ec6a14604ceaffb21fe78cc4881d3b8.tar.gz | |
KVM: PPC: e500mc: Add doorbell emulation support
When one vcpu wants to kick another, it can issue a special IPI instruction
called msgsnd. This patch emulates this instruction, its clearing counterpart
and the infrastructure required to actually trigger that interrupt inside
a guest vcpu.
With this patch, SMP guests on e500mc work.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc/kvm/booke.c')
| -rw-r--r-- | arch/powerpc/kvm/booke.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index 0b77be1..85bd5b8 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -326,6 +326,7 @@ static int kvmppc_booke_irqprio_deliver(struct kvm_vcpu *vcpu, int_class = INT_CLASS_NONCRIT; break; case BOOKE_IRQPRIO_CRITICAL: + case BOOKE_IRQPRIO_DBELL_CRIT: allowed = vcpu->arch.shared->msr & MSR_CE; allowed = allowed && !crit; msr_mask = MSR_GS | MSR_ME; @@ -342,6 +343,7 @@ static int kvmppc_booke_irqprio_deliver(struct kvm_vcpu *vcpu, keep_irq = true; /* fall through */ case BOOKE_IRQPRIO_EXTERNAL: + case BOOKE_IRQPRIO_DBELL: allowed = vcpu->arch.shared->msr & MSR_EE; allowed = allowed && !crit; msr_mask = MSR_GS | MSR_CE | MSR_ME | MSR_DE; |
