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authorHollis Blanchard <hollisb@us.ibm.com>2008-11-05 09:36:24 -0600
committerAvi Kivity <avi@redhat.com>2008-12-31 16:52:24 +0200
commitfcfdbd266a41d3e41d17666de410a24995fde03a (patch)
treef37ca0b9eaec03193608447bf5107e6149fe62a8 /arch/powerpc/kvm
parentd4cf3892e50b8e35341086a4fe2bb8a3989b55d4 (diff)
KVM: ppc: improve trap emulation
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>
Diffstat (limited to 'arch/powerpc/kvm')
-rw-r--r--arch/powerpc/kvm/emulate.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index 814f1e68785..4c30fa0c31e 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -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;