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KVM: x86 emulator: implement IMUL REG, R/M (opcode 0F AF)

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Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity
2010-08-18 18:31:43 +03:00
parent f3a1b9f496
commit 5c82aa2998
1 changed files with 10 additions and 3 deletions
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13
arch/x86/kvm/emulate.c
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@@ -2264,13 +2264,20 @@ static int em_ret_near_imm(struct x86_emulate_ctxt *ctxt)
return X86EMUL_CONTINUE; return X86EMUL_CONTINUE;
} }
static int em_imul(struct x86_emulate_ctxt *ctxt)
{
struct decode_cache *c = &ctxt->decode;
emulate_2op_SrcV_nobyte("imul", c->src, c->dst, ctxt->eflags);
return X86EMUL_CONTINUE;
}
static int em_imul_3op(struct x86_emulate_ctxt *ctxt) static int em_imul_3op(struct x86_emulate_ctxt *ctxt)
{ {
struct decode_cache *c = &ctxt->decode; struct decode_cache *c = &ctxt->decode;
c->dst.val = c->src2.val; c->dst.val = c->src2.val;
emulate_2op_SrcV_nobyte("imul", c->src, c->dst, ctxt->eflags); return em_imul(ctxt);
return X86EMUL_CONTINUE;
} }
#define D(_y) { .flags = (_y) } #define D(_y) { .flags = (_y) }
@@ -2488,7 +2495,7 @@ static struct opcode twobyte_table[256] = {
N, D(DstMem | SrcReg | ModRM | BitOp | Lock), N, D(DstMem | SrcReg | ModRM | BitOp | Lock),
D(DstMem | SrcReg | Src2ImmByte | ModRM), D(DstMem | SrcReg | Src2ImmByte | ModRM),
D(DstMem | SrcReg | Src2CL | ModRM), D(DstMem | SrcReg | Src2CL | ModRM),
D(ModRM), N, D(ModRM), I(DstReg | SrcMem | ModRM, em_imul),
/* 0xB0 - 0xB7 */ /* 0xB0 - 0xB7 */
D(ByteOp | DstMem | SrcReg | ModRM | Lock), D(DstMem | SrcReg | ModRM | Lock), D(ByteOp | DstMem | SrcReg | ModRM | Lock), D(DstMem | SrcReg | ModRM | Lock),
N, D(DstMem | SrcReg | ModRM | BitOp | Lock), N, D(DstMem | SrcReg | ModRM | BitOp | Lock),