1 /*
2 * Copyright (C) 2008, VMware, Inc.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
12 * NON INFRINGEMENT. See the GNU General Public License for more
13 * details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 */
20 #ifndef _ASM_X86_HYPERVISOR_H
21 #define _ASM_X86_HYPERVISOR_H
22
23 /* x86 hypervisor types */
24 enum x86_hypervisor_type {
25 X86_HYPER_NATIVE = 0,
26 X86_HYPER_VMWARE,
27 X86_HYPER_MS_HYPERV,
28 X86_HYPER_XEN_PV,
29 X86_HYPER_XEN_HVM,
30 X86_HYPER_KVM,
31 };
32
33 #ifdef CONFIG_HYPERVISOR_GUEST
34
35 #include <asm/kvm_para.h>
36 #include <asm/x86_init.h>
37 #include <asm/xen/hypervisor.h>
38
39 struct hypervisor_x86 {
40 /* Hypervisor name */
41 const char *name;
42
43 /* Detection routine */
44 uint32_t (*detect)(void);
45
46 /* Hypervisor type */
47 enum x86_hypervisor_type type;
48
49 /* init time callbacks */
50 struct x86_hyper_init init;
51
52 /* runtime callbacks */
53 struct x86_hyper_runtime runtime;
54 };
55
56 extern enum x86_hypervisor_type x86_hyper_type;
57 extern void init_hypervisor_platform(void);
hypervisor_is_type(enum x86_hypervisor_type type)58 static inline bool hypervisor_is_type(enum x86_hypervisor_type type)
59 {
60 return x86_hyper_type == type;
61 }
62 #else
init_hypervisor_platform(void)63 static inline void init_hypervisor_platform(void) { }
hypervisor_is_type(enum x86_hypervisor_type type)64 static inline bool hypervisor_is_type(enum x86_hypervisor_type type)
65 {
66 return type == X86_HYPER_NATIVE;
67 }
68 #endif /* CONFIG_HYPERVISOR_GUEST */
69 #endif /* _ASM_X86_HYPERVISOR_H */
70