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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 | */ | |
e08cae41 PA |
20 | #ifndef _ASM_X86_HYPERVISOR_H |
21 | #define _ASM_X86_HYPERVISOR_H | |
88b094fb | 22 | |
6276a074 BP |
23 | #ifdef CONFIG_HYPERVISOR_GUEST |
24 | ||
2904ed8d | 25 | #include <asm/kvm_para.h> |
d9b8ca84 | 26 | #include <asm/xen/hypervisor.h> |
2904ed8d | 27 | |
e08cae41 PA |
28 | /* |
29 | * x86 hypervisor information | |
30 | */ | |
31 | struct hypervisor_x86 { | |
32 | /* Hypervisor name */ | |
33 | const char *name; | |
34 | ||
35 | /* Detection routine */ | |
9df56f19 | 36 | uint32_t (*detect)(void); |
e08cae41 PA |
37 | |
38 | /* Adjust CPU feature bits (run once per CPU) */ | |
39 | void (*set_cpu_features)(struct cpuinfo_x86 *); | |
40 | ||
41 | /* Platform setup (run once per boot) */ | |
42 | void (*init_platform)(void); | |
4cca6ea0 AK |
43 | |
44 | /* X2APIC detection (run once per boot) */ | |
45 | bool (*x2apic_available)(void); | |
e08cae41 PA |
46 | }; |
47 | ||
48 | extern const struct hypervisor_x86 *x86_hyper; | |
49 | ||
50 | /* Recognized hypervisors */ | |
51 | extern const struct hypervisor_x86 x86_hyper_vmware; | |
52 | extern const struct hypervisor_x86 x86_hyper_ms_hyperv; | |
a71dbdaa | 53 | extern const struct hypervisor_x86 x86_hyper_xen; |
fc73373b | 54 | extern const struct hypervisor_x86 x86_hyper_kvm; |
e08cae41 | 55 | |
6276a074 BP |
56 | extern void init_hypervisor(struct cpuinfo_x86 *c); |
57 | extern void init_hypervisor_platform(void); | |
58 | extern bool hypervisor_x2apic_available(void); | |
59 | #else | |
60 | static inline void init_hypervisor(struct cpuinfo_x86 *c) { } | |
61 | static inline void init_hypervisor_platform(void) { } | |
62 | static inline bool hypervisor_x2apic_available(void) { return false; } | |
63 | #endif /* CONFIG_HYPERVISOR_GUEST */ | |
64 | #endif /* _ASM_X86_HYPERVISOR_H */ |