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KVM: x86 emulator: Add support for mov r, sreg (0x8c) instruction

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Add support for mov r, sreg (0x8c) instruction

Signed-off-by: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net>
Signed-off-by: Laurent Vivier <laurent.vivier@bull.net>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Guillaume Thouvenin 2008-05-27 15:13:28 +02:00 committed by Avi Kivity
parent 4257198ae2
commit 38d5bc6d50
1 changed files with 14 additions and 1 deletions
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15
arch/x86/kvm/x86_emulate.c
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@ -138,7 +138,7 @@ static u16 opcode_table[256] = {
/* 0x88 - 0x8F */
ByteOp | DstMem | SrcReg | ModRM | Mov, DstMem | SrcReg | ModRM | Mov,
ByteOp | DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
0, ModRM | DstReg,
DstMem | SrcReg | ModRM | Mov, ModRM | DstReg,
DstReg | SrcMem | ModRM | Mov, Group | Group1A,
/* 0x90 - 0x9F */
0, 0, 0, 0, 0, 0, 0, 0,
@ -1518,6 +1518,19 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
break;
case 0x88 ... 0x8b: /* mov */
goto mov;
case 0x8c: { /* mov r/m, sreg */
struct kvm_segment segreg;
if (c->modrm_reg <= 5)
kvm_get_segment(ctxt->vcpu, &segreg, c->modrm_reg);
else {
printk(KERN_INFO "0x8c: Invalid segreg in modrm byte 0x%02x\n",
c->modrm);
goto cannot_emulate;
}
c->dst.val = segreg.selector;
break;
}
case 0x8d: /* lea r16/r32, m */
c->dst.val = c->modrm_ea;
break;