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authorGuillaume Thouvenin <guillaume.thouvenin@ext.bull.net>2008-05-27 15:13:28 +0200
committerAvi Kivity <avi@qumranet.com>2008-07-20 12:42:28 +0300
commit38d5bc6d50a4368be08b39b02efb9cbbe1dd60d0 (patch)
tree96298c26d72f0a34ea6a370ff8af896eaf504315 /arch
parent4257198ae2c36e030a0947fef661c8de973778be (diff)
KVM: x86 emulator: Add support for mov r, sreg (0x8c) instruction
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kvm/x86_emulate.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c
index b049b6bf9a7..2a9db4d90ba 100644
--- a/arch/x86/kvm/x86_emulate.c
+++ b/arch/x86/kvm/x86_emulate.c
@@ -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 @@ special_insn:
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;