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KVM: x86 emulator: call near

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Implement emulation of instruction
	opcode: 0xe8
	call (near)

Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Nitin A Kamble 2007-08-28 18:08:37 -07:00 committed by Avi Kivity
parent 7d31691163
commit f6eed39135
1 changed files with 21 additions and 1 deletions
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22
drivers/kvm/x86_emulate.c
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@ -150,7 +150,7 @@ static u8 opcode_table[256] = {
/* 0xE0 - 0xE7 */
0, 0, 0, 0, 0, 0, 0, 0,
/* 0xE8 - 0xEF */
0, SrcImm|ImplicitOps, 0, SrcImmByte|ImplicitOps, 0, 0, 0, 0,
ImplicitOps, SrcImm|ImplicitOps, 0, SrcImmByte|ImplicitOps, 0, 0, 0, 0,
/* 0xF0 - 0xF7 */
0, 0, 0, 0,
ImplicitOps, 0,
@ -1033,6 +1033,26 @@ push:
case 0xd2 ... 0xd3: /* Grp2 */
src.val = _regs[VCPU_REGS_RCX];
goto grp2;
case 0xe8: /* call (near) */ {
long int rel;
switch (op_bytes) {
case 2:
rel = insn_fetch(s16, 2, _eip);
break;
case 4:
rel = insn_fetch(s32, 4, _eip);
break;
case 8:
rel = insn_fetch(s64, 8, _eip);
break;
default:
DPRINTF("Call: Invalid op_bytes\n");
goto cannot_emulate;
}
src.val = (unsigned long) _eip;
JMP_REL(rel);
goto push;
}
case 0xe9: /* jmp rel */
case 0xeb: /* jmp rel short */
JMP_REL(src.val);