kvmppc: add emulation of stwx

From: Christian Ehrhardt <[email protected]>

I had today the issue of an unemulated stwx. This patch adds the emulation for it.

---

[diffstat]

[diff]

 emulate.c |    7 +++++++
 1 files changed, 7 insertions(+)

@@ -270,6 +270,13 @@ int kvmppc_emulate_instruction(struct kv
 		case 146:                                       /* mtmsr */
 			rs = get_rs(inst);
 			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 */

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