From f3a1b9f49647133e8c6eb6a68399ed8dbd61554a Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Wed, 18 Aug 2010 18:25:25 +0300 Subject: [PATCH] KVM: x86 emulator: implement IMUL REG, R/M, imm8 (opcode 6B) Signed-off-by: Avi Kivity --- arch/x86/kvm/emulate.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 9e58f5054c39..618386f80518 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -2264,6 +2264,15 @@ static int em_ret_near_imm(struct x86_emulate_ctxt *ctxt) return X86EMUL_CONTINUE; } +static int em_imul_3op(struct x86_emulate_ctxt *ctxt) +{ + struct decode_cache *c = &ctxt->decode; + + c->dst.val = c->src2.val; + emulate_2op_SrcV_nobyte("imul", c->src, c->dst, ctxt->eflags); + return X86EMUL_CONTINUE; +} + #define D(_y) { .flags = (_y) } #define N D(0) #define G(_f, _g) { .flags = ((_f) | Group), .u.group = (_g) } @@ -2371,7 +2380,8 @@ static struct opcode opcode_table[256] = { N, N, N, N, /* 0x68 - 0x6F */ I(SrcImm | Mov | Stack, em_push), N, - I(SrcImmByte | Mov | Stack, em_push), N, + I(SrcImmByte | Mov | Stack, em_push), + I(DstReg | SrcMem | ModRM | Src2ImmByte, em_imul_3op), D(DstDI | ByteOp | Mov | String), D(DstDI | Mov | String), /* insb, insw/insd */ D(SrcSI | ByteOp | ImplicitOps | String), D(SrcSI | ImplicitOps | String), /* outsb, outsw/outsd */ /* 0x70 - 0x7F */ -- 2.34.1