xref: /freebsd/sys/amd64/vmm/x86.h (revision 405c3050f102b8c74782f0366c8ead927bd07b68)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2011 NetApp, Inc.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #ifndef _X86_H_
32 #define	_X86_H_
33 
34 #define CPUID_0000_0000 (0x0)
35 #define CPUID_0000_0001	(0x1)
36 #define CPUID_0000_0002 (0x2)
37 #define CPUID_0000_0003 (0x3)
38 #define CPUID_0000_0004 (0x4)
39 #define CPUID_0000_0006 (0x6)
40 #define CPUID_0000_0007 (0x7)
41 #define	CPUID_0000_000A	(0xA)
42 #define	CPUID_0000_000B	(0xB)
43 #define	CPUID_0000_000D	(0xD)
44 #define CPUID_8000_0000	(0x80000000)
45 #define CPUID_8000_0001	(0x80000001)
46 #define CPUID_8000_0002	(0x80000002)
47 #define CPUID_8000_0003	(0x80000003)
48 #define CPUID_8000_0004	(0x80000004)
49 #define CPUID_8000_0006	(0x80000006)
50 #define CPUID_8000_0007	(0x80000007)
51 #define CPUID_8000_0008	(0x80000008)
52 
53 /*
54  * CPUID instruction Fn0000_0001:
55  */
56 #define CPUID_0000_0001_APICID_MASK			(0xff<<24)
57 #define CPUID_0000_0001_APICID_SHIFT			24
58 
59 /*
60  * CPUID instruction Fn0000_0001 ECX
61  */
62 #define CPUID_0000_0001_FEAT0_VMX	(1<<5)
63 
64 int x86_emulate_cpuid(struct vm *vm, int vcpu_id, uint32_t *eax, uint32_t *ebx,
65 		      uint32_t *ecx, uint32_t *edx);
66 
67 enum vm_cpuid_capability {
68 	VCC_NONE,
69 	VCC_NO_EXECUTE,
70 	VCC_FFXSR,
71 	VCC_TCE,
72 	VCC_LAST
73 };
74 
75 /*
76  * Return 'true' if the capability 'cap' is enabled in this virtual cpu
77  * and 'false' otherwise.
78  */
79 bool vm_cpuid_capability(struct vm *vm, int vcpuid, enum vm_cpuid_capability);
80 #endif
81