Commit 7f0aaee0 authored by Nitin A Kamble's avatar Nitin A Kamble Committed by Avi Kivity

KVM: Implement emulation of "pop reg" instruction (opcode 0x58-0x5f)

For use in real mode.
Signed-off-by: default avatarNitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent 7700270e
...@@ -98,8 +98,11 @@ static u8 opcode_table[256] = { ...@@ -98,8 +98,11 @@ static u8 opcode_table[256] = {
0, 0, 0, 0, 0, 0, 0, 0,
/* 0x40 - 0x4F */ /* 0x40 - 0x4F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x50 - 0x5F */ /* 0x50 - 0x57 */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x58 - 0x5F */
ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
/* 0x60 - 0x6F */ /* 0x60 - 0x6F */
0, 0, 0, DstReg | SrcMem32 | ModRM | Mov /* movsxd (x86/64) */ , 0, 0, 0, DstReg | SrcMem32 | ModRM | Mov /* movsxd (x86/64) */ ,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
...@@ -1153,6 +1156,16 @@ x86_emulate_memop(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops) ...@@ -1153,6 +1156,16 @@ x86_emulate_memop(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
case 0xf4: /* hlt */ case 0xf4: /* hlt */
ctxt->vcpu->halt_request = 1; ctxt->vcpu->halt_request = 1;
goto done; goto done;
case 0x58 ... 0x5f: /* pop reg */
dst.ptr = (unsigned long *)&_regs[b & 0x7];
if ((rc = ops->read_std(register_address(ctxt->ss_base,
_regs[VCPU_REGS_RSP]), dst.ptr, op_bytes, ctxt)) != 0)
goto done;
register_address_increment(_regs[VCPU_REGS_RSP], dst.bytes);
dst.orig_val = dst.val; /* Disable writeback. */
break;
} }
goto writeback; goto writeback;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment