Merge branch 'master' into for-next

1 files changed, 44 insertions, 11 deletions

diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index cb72a65f4ec..4568ec386c2 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -38,10 +38,12 @@
 #define OP_31_XOP_LBZX      87
 #define OP_31_XOP_STWX      151
 #define OP_31_XOP_STBX      215
+#define OP_31_XOP_LBZUX     119
 #define OP_31_XOP_STBUX     247
 #define OP_31_XOP_LHZX      279
 #define OP_31_XOP_LHZUX     311
 #define OP_31_XOP_MFSPR     339
+#define OP_31_XOP_LHAX      343
 #define OP_31_XOP_STHX      407
 #define OP_31_XOP_STHUX     439
 #define OP_31_XOP_MTSPR     467
@@ -62,10 +64,12 @@
 #define OP_STBU 39
 #define OP_LHZ  40
 #define OP_LHZU 41
+#define OP_LHA  42
+#define OP_LHAU 43
 #define OP_STH  44
 #define OP_STHU 45
 
-#ifdef CONFIG_PPC64
+#ifdef CONFIG_PPC_BOOK3S
 static int kvmppc_dec_enabled(struct kvm_vcpu *vcpu)
 {
 	return 1;
@@ -82,7 +86,7 @@ void kvmppc_emulate_dec(struct kvm_vcpu *vcpu)
 	unsigned long dec_nsec;
 
 	pr_debug("mtDEC: %x\n", vcpu->arch.dec);
-#ifdef CONFIG_PPC64
+#ifdef CONFIG_PPC_BOOK3S
 	/* mtdec lowers the interrupt line when positive. */
 	kvmppc_core_dequeue_dec(vcpu);
 
@@ -128,7 +132,7 @@ void kvmppc_emulate_dec(struct kvm_vcpu *vcpu)
  * from opcode tables in the future. */
 int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
 {
-	u32 inst = vcpu->arch.last_inst;
+	u32 inst = kvmppc_get_last_inst(vcpu);
 	u32 ea;
 	int ra;
 	int rb;
@@ -143,13 +147,9 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
 
 	pr_debug(KERN_INFO "Emulating opcode %d / %d\n", get_op(inst), get_xop(inst));
 
-	/* Try again next time */
-	if (inst == KVM_INST_FETCH_FAILED)
-		return EMULATE_DONE;
-
 	switch (get_op(inst)) {
 	case OP_TRAP:
-#ifdef CONFIG_PPC64
+#ifdef CONFIG_PPC_BOOK3S
 	case OP_TRAP_64:
 		kvmppc_core_queue_program(vcpu, SRR1_PROGTRAP);
 #else
@@ -171,6 +171,19 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
 			emulated = kvmppc_handle_load(run, vcpu, rt, 1, 1);
 			break;
 
+		case OP_31_XOP_LBZUX:
+			rt = get_rt(inst);
+			ra = get_ra(inst);
+			rb = get_rb(inst);
+
+			ea = kvmppc_get_gpr(vcpu, rb);
+			if (ra)
+				ea += kvmppc_get_gpr(vcpu, ra);
+
+			emulated = kvmppc_handle_load(run, vcpu, rt, 1, 1);
+			kvmppc_set_gpr(vcpu, ra, ea);
+			break;
+
 		case OP_31_XOP_STWX:
 			rs = get_rs(inst);
 			emulated = kvmppc_handle_store(run, vcpu,
@@ -200,6 +213,11 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
 			kvmppc_set_gpr(vcpu, rs, ea);
 			break;
 
+		case OP_31_XOP_LHAX:
+			rt = get_rt(inst);
+			emulated = kvmppc_handle_loads(run, vcpu, rt, 2, 1);
+			break;
+
 		case OP_31_XOP_LHZX:
 			rt = get_rt(inst);
 			emulated = kvmppc_handle_load(run, vcpu, rt, 2, 1);
@@ -450,6 +468,18 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
 		kvmppc_set_gpr(vcpu, ra, vcpu->arch.paddr_accessed);
 		break;
 
+	case OP_LHA:
+		rt = get_rt(inst);
+		emulated = kvmppc_handle_loads(run, vcpu, rt, 2, 1);
+		break;
+
+	case OP_LHAU:
+		ra = get_ra(inst);
+		rt = get_rt(inst);
+		emulated = kvmppc_handle_loads(run, vcpu, rt, 2, 1);
+		kvmppc_set_gpr(vcpu, ra, vcpu->arch.paddr_accessed);
+		break;
+
 	case OP_STH:
 		rs = get_rs(inst);
 		emulated = kvmppc_handle_store(run, vcpu,
@@ -472,7 +502,9 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
 
 	if (emulated == EMULATE_FAIL) {
 		emulated = kvmppc_core_emulate_op(run, vcpu, inst, &advance);
-		if (emulated == EMULATE_FAIL) {
+		if (emulated == EMULATE_AGAIN) {
+			advance = 0;
+		} else if (emulated == EMULATE_FAIL) {
 			advance = 0;
 			printk(KERN_ERR "Couldn't emulate instruction 0x%08x "
 			       "(op %d xop %d)\n", inst, get_op(inst), get_xop(inst));
@@ -480,10 +512,11 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
 		}
 	}
 
-	trace_kvm_ppc_instr(inst, vcpu->arch.pc, emulated);
+	trace_kvm_ppc_instr(inst, kvmppc_get_pc(vcpu), emulated);
 
+	/* Advance past emulated instruction. */
 	if (advance)
-		vcpu->arch.pc += 4; /* Advance past emulated instruction. */
+		kvmppc_set_pc(vcpu, kvmppc_get_pc(vcpu) + 4);
 
 	return emulated;
 }