This patch adds emulation for the xor instruction.
Signed-off-by: Alexander Graf <[email protected]>
---
arch/powerpc/include/asm/ppc-opcode.h | 1 +
arch/powerpc/kvm/emulate.c | 8 ++++++++
2 files changed, 9 insertions(+)
diff --git a/arch/powerpc/include/asm/ppc-opcode.h
b/arch/powerpc/include/asm/ppc-opcode.h
index 86c510e..f2da847 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -101,6 +101,7 @@
#define OP_31_XOP_STBUX 247
#define OP_31_XOP_LHZX 279
#define OP_31_XOP_LHZUX 311
+#define OP_31_XOP_XOR 316
#define OP_31_XOP_MFSPR 339
#define OP_31_XOP_LHAX 343
#define OP_31_XOP_LHAUX 375
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index d6e0e4b..8c2db76 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -633,6 +633,14 @@ int kvmppc_emulate_any_instruction(struct kvm_vcpu *vcpu)
kvmppc_emulate_cmp(vcpu, value, 0, true, 0,
is_32bit);
break;
+ case OP_31_XOP_XOR:
+ value = kvmppc_get_gpr(vcpu, get_rs(inst));
+ value ^= kvmppc_get_gpr(vcpu, get_rb(inst));
+ kvmppc_set_gpr(vcpu, get_ra(inst), value);
+ if (get_rc(inst))
+ kvmppc_emulate_cmp(vcpu, value, 0, true, 0,
+ is_32bit);
+ break;
default:
emulated = EMULATE_FAIL;
break;
--
1.8.1.4
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