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KVM: x86 emulator: Add test acc, imm instruction (opcodes 0xA8 - 0xA9) 

This adds test acc, imm instruction to the x86 emulator

Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Mohammed Gamal 2010-05-11 22:22:40 +03:00 committed by Avi Kivity
parent 24955b6c90
commit dfb507c41d
1 changed files with 4 additions and 1 deletions
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5
arch/x86/kvm/emulate.c
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@ -181,7 +181,7 @@ static u32 opcode_table[256] = {
ByteOp | SrcSI | DstDI | Mov | String, SrcSI | DstDI | Mov | String,
ByteOp | SrcSI | DstDI | String, SrcSI | DstDI | String,
/* 0xA8 - 0xAF */
0, 0, ByteOp | DstDI | Mov | String, DstDI | Mov | String,
DstAcc | SrcImmByte | ByteOp, DstAcc | SrcImm, ByteOp | DstDI | Mov | String, DstDI | Mov | String,
ByteOp | SrcSI | DstAcc | Mov | String, SrcSI | DstAcc | Mov | String,
ByteOp | DstDI | String, DstDI | String,
/* 0xB0 - 0xB7 */
@ -2754,6 +2754,7 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
}
break;
case 0x84 ... 0x85:
test:
emulate_2op_SrcV("test", c->src, c->dst, ctxt->eflags);
break;
case 0x86 ... 0x87: /* xchg */
@ -2852,6 +2853,8 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
c->dst.type = OP_NONE; /* Disable writeback. */
DPRINTF("cmps: mem1=0x%p mem2=0x%p\n", c->src.ptr, c->dst.ptr);
goto cmp;
case 0xa8 ... 0xa9: /* test ax, imm */
goto test;
case 0xaa ... 0xab: /* stos */
c->dst.val = c->regs[VCPU_REGS_RAX];
break;