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>

diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index a03fe0c..0000974 100644 (file)
--- 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);