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KVM: x86 emulator: Add vmmcall/vmcall to x86_emulate (v3)

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Add vmmcall/vmcall to x86_emulate.  Future patch will implement functionality
for these instructions.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Anthony Liguori 2007-09-17 14:57:49 -05:00 committed by Avi Kivity
parent dd430ca20c
commit aca7f96600
1 changed files with 17 additions and 6 deletions
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23
drivers/kvm/x86_emulate.c
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@ -1380,6 +1380,12 @@ x86_emulate_memop(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
u16 size;
unsigned long address;
case 0: /* vmcall */
if (modrm_mod != 3 || modrm_rm != 1)
goto cannot_emulate;
/* nop */
break;
case 2: /* lgdt */
rc = read_descriptor(ctxt, ops, src.ptr,
&size, &address, op_bytes);
@ -1387,12 +1393,17 @@ x86_emulate_memop(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
goto done;
realmode_lgdt(ctxt->vcpu, size, address);
break;
case 3: /* lidt */
rc = read_descriptor(ctxt, ops, src.ptr,
&size, &address, op_bytes);
if (rc)
goto done;
realmode_lidt(ctxt->vcpu, size, address);
case 3: /* lidt/vmmcall */
if (modrm_mod == 3 && modrm_rm == 1) {
/* nop */
} else {
rc = read_descriptor(ctxt, ops, src.ptr,
&size, &address,
op_bytes);
if (rc)
goto done;
realmode_lidt(ctxt->vcpu, size, address);
}
break;
case 4: /* smsw */
if (modrm_mod != 3)