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KVM: ppc: improve trap emulation

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set ESR[PTR] when emulating a guest trap. This allows Linux guests to
properly handle WARN_ON() (i.e. detect that it's a non-fatal trap).

Also remove debugging printk in trap emulation.

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Hollis Blanchard 2008-11-05 09:36:24 -06:00 committed by Avi Kivity
parent d4cf3892e5
commit fcfdbd266a
1 changed files with 2 additions and 2 deletions
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4
arch/powerpc/kvm/emulate.c
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@ -74,8 +74,8 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
int advance = 1;
switch (get_op(inst)) {
case 3: /* trap */
printk("trap!\n");
case 3: /* trap */
vcpu->arch.esr |= ESR_PTR;
kvmppc_core_queue_program(vcpu);
advance = 0;
break;