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Commit f6eed391 authored by Nitin A Kamble's avatar Nitin A Kamble Committed by Avi Kivity
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KVM: x86 emulator: call near 



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

Signed-off-by: default avatarNitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent 7d316911

drivers/kvm/x86_emulate.c

+21 −1
Original line number Diff line number Diff line
@@ -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 @@ x86_emulate_memop(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops) 
	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);