When we get a program interrupt in guest kernel mode, we try to emulate the instruction. If that doesn't fail, we report to the user and try again - at the exact same instruction pointer. So if the guest kernel really does trigger an invalid instruction, we loop forever. So let's better go and forward program exceptions to the guest when we don't know the instruction we're supposed to emulate. Signed-off-by: Alexander Graf <agraf@xxxxxxx> --- arch/powerpc/kvm/emulate.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c index 8b0ba0b..b905623 100644 --- a/arch/powerpc/kvm/emulate.c +++ b/arch/powerpc/kvm/emulate.c @@ -476,6 +476,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu) advance = 0; printk(KERN_ERR "Couldn't emulate instruction 0x%08x " "(op %d xop %d)\n", inst, get_op(inst), get_xop(inst)); + kvmppc_core_queue_program(vcpu, 0); } } -- 1.6.0.2 -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
