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KVM: PPC: Enable program interrupt to do MMIO

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When we get a program interrupt we usually don't expect it to perform an
MMIO operation. But why not? When we emulate paired singles, we can end
up loading or storing to an MMIO address - and the handling of those
happens in the program interrupt handler.

So let's teach the program interrupt handler how to deal with EMULATE_MMIO.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Alexander Graf 2010-02-19 11:00:43 +01:00 committed by Avi Kivity
parent 0564ee8a86
commit e5c29e926c
1 changed files with 4 additions and 0 deletions
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4
arch/powerpc/kvm/book3s.c
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@ -841,6 +841,10 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
kvmppc_core_queue_program(vcpu, flags);
r = RESUME_GUEST;
break;
case EMULATE_DO_MMIO:
run->exit_reason = KVM_EXIT_MMIO;
r = RESUME_HOST_NV;
break;
default:
BUG();
}