Commit 782b877c authored by Gleb Natapov's avatar Gleb Natapov Committed by Avi Kivity

KVM: x86 emulator: Complete ljmp decoding at decode stage

Signed-off-by: default avatarGleb Natapov <gleb@redhat.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 0654169e
......@@ -193,7 +193,7 @@ static u32 opcode_table[256] = {
SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps,
/* 0xE8 - 0xEF */
ImplicitOps | Stack, SrcImm | ImplicitOps,
ImplicitOps, SrcImmByte | ImplicitOps,
SrcImm | Src2Imm16, SrcImmByte | ImplicitOps,
SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps,
SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps,
/* 0xF0 - 0xF7 */
......@@ -1805,30 +1805,15 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
}
case 0xe9: /* jmp rel */
goto jmp;
case 0xea: /* jmp far */ {
uint32_t eip;
uint16_t sel;
switch (c->op_bytes) {
case 2:
eip = insn_fetch(u16, 2, c->eip);
break;
case 4:
eip = insn_fetch(u32, 4, c->eip);
break;
default:
DPRINTF("jmp far: Invalid op_bytes\n");
goto cannot_emulate;
}
sel = insn_fetch(u16, 2, c->eip);
if (kvm_load_segment_descriptor(ctxt->vcpu, sel, 9, VCPU_SREG_CS) < 0) {
case 0xea: /* jmp far */
if (kvm_load_segment_descriptor(ctxt->vcpu, c->src2.val, 9,
VCPU_SREG_CS) < 0) {
DPRINTF("jmp far: Failed to load CS descriptor\n");
goto cannot_emulate;
}
c->eip = eip;
c->eip = c->src.val;
break;
}
case 0xeb:
jmp: /* jmp rel short */
jmp_rel(c, c->src.val);
......
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