KVM: ppc: add lwzx/stwz emulation

Somehow these load/store instructions got missed before, but weren't used by
the guest so didn't break anything.

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index a03fe0c80698..000097461283 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -246,6 +246,11 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
         case 31:
                 switch (get_xop(inst)) {
 
+                case 23:                                        /* lwzx */
+                        rt = get_rt(inst);
+                        emulated = kvmppc_handle_load(run, vcpu, rt, 4, 1);
+                        break;
+
                 case 83:                                        /* mfmsr */
                         rt = get_rt(inst);
                         vcpu->arch.gpr[rt] = vcpu->arch.msr;
@@ -267,6 +272,13 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
                         kvmppc_set_msr(vcpu, vcpu->arch.gpr[rs]);
                         break;
 
+                case 151:                                       /* stwx */
+                        rs = get_rs(inst);
+                        emulated = kvmppc_handle_store(run, vcpu,
+                                                       vcpu->arch.gpr[rs],
+                                                       4, 1);
+                        break;
+
                 case 163:                                       /* wrteei */
                         vcpu->arch.msr = (vcpu->arch.msr & ~MSR_EE)
                                          | (inst & MSR_EE);