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Commit aca7f966 authored by Anthony Liguori's avatar Anthony Liguori Committed by Avi Kivity
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KVM: x86 emulator: Add vmmcall/vmcall to x86_emulate (v3) 



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

Signed-off-by: default avatarAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent dd430ca2

drivers/kvm/x86_emulate.c

+17 −6
Original line number Diff line number Diff line
@@ -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 */

		case 3: /* lidt/vmmcall */

			if (modrm_mod == 3 && modrm_rm == 1) {

				/* nop */

			} else {

				rc = read_descriptor(ctxt, ops, src.ptr,

					     &size, &address, op_bytes);

						     &size, &address,

						     op_bytes);

				if (rc)

					goto done;

				realmode_lidt(ctxt->vcpu, size, address);

			}

			break;

		case 4: /* smsw */

			if (modrm_mod != 3)