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 X86_HYPER_JAILHOUSE,
32 X86_HYPER_ACRN,
33 };
34
35 #ifdef CONFIG_HYPERVISOR_GUEST
36
37 #include <asm/kvm_para.h>
38 #include <asm/x86_init.h>
39 #include <asm/xen/hypervisor.h>
40
41 struct hypervisor_x86 {
42 /* Hypervisor name */
43 const char *name;
44
45 /* Detection routine */
46 uint32_t (*detect)(void);
47
48 /* Hypervisor type */
49 enum x86_hypervisor_type type;
50
51 /* init time callbacks */
52 struct x86_hyper_init init;
53
54 /* runtime callbacks */
55 struct x86_hyper_runtime runtime;
56
57 /* ignore nopv parameter */
58 bool ignore_nopv;
59 };
60
61 extern const struct hypervisor_x86 x86_hyper_vmware;
62 extern const struct hypervisor_x86 x86_hyper_ms_hyperv;
63 extern const struct hypervisor_x86 x86_hyper_xen_pv;
64 extern const struct hypervisor_x86 x86_hyper_kvm;
65 extern const struct hypervisor_x86 x86_hyper_jailhouse;
66 extern const struct hypervisor_x86 x86_hyper_acrn;
67 extern struct hypervisor_x86 x86_hyper_xen_hvm;
68
69 extern bool nopv;
70 extern enum x86_hypervisor_type x86_hyper_type;
71 extern void init_hypervisor_platform(void);
hypervisor_is_type(enum x86_hypervisor_type type)72 static inline bool hypervisor_is_type(enum x86_hypervisor_type type)
73 {
74 return x86_hyper_type == type;
75 }
76 #else
init_hypervisor_platform(void)77 static inline void init_hypervisor_platform(void) { }
hypervisor_is_type(enum x86_hypervisor_type type)78 static inline bool hypervisor_is_type(enum x86_hypervisor_type type)
79 {
80 return type == X86_HYPER_NATIVE;
81 }
82 #endif /* CONFIG_HYPERVISOR_GUEST */
83 #endif /* _ASM_X86_HYPERVISOR_H */
84