Hi Avi,
Please find a patch implementing the "ret" instruction in the
x86_emulation.
Thanks & Regards,
Nitin
Open Source Technology Center, Intel Corporation.
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commit 32271188f940f8f30f9be0c4860077381d6b524c Author: Nitin A Kamble <[EMAIL PROTECTED]> Date: Thu Jun 7 18:32:45 2007 -0700
Implement "ret" instruction, opcode 0xc3
diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c
index 46d4124..c7e6e53 100644
--- a/drivers/kvm/x86_emulate.c
+++ b/drivers/kvm/x86_emulate.c
@@ -129,7 +129,7 @@ static u8 opcode_table[256] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xC0 - 0xC7 */
ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImmByte | ModRM, 0, 0,
- 0, 0, ByteOp | DstMem | SrcImm | ModRM | Mov,
+ ImplicitOps, 0, ByteOp | DstMem | SrcImm | ModRM | Mov,
DstMem | SrcImm | ModRM | Mov,
/* 0xC8 - 0xCF */
0, 0, 0, 0, 0, 0, 0, 0,
@@ -1113,10 +1113,15 @@ special_insn:
_eip = ctxt->vcpu->rip;
}
switch (b) {
+ case 0xc3: /* ret */
+ dst.ptr = & _eip;
+ goto pop_instruction;
case 0x58 ... 0x5f: /* pop reg */
+ dst.ptr = (unsigned long *)&_regs[b & 0x7];
+
+ pop_instruction:
dst.type = OP_REG;
dst.bytes = op_bytes;
- dst.ptr = (unsigned long *)&_regs[b & 0x7];
if ((rc = ops->read_std(register_address(ctxt->ss_base,
_regs[VCPU_REGS_RSP]),
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