Alok Kataria | 88b094f | 2008-10-27 10:41:46 -0700 | [diff] [blame] | 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 | */ |
H. Peter Anvin | e08cae4 | 2010-05-07 16:57:28 -0700 | [diff] [blame] | 20 | #ifndef _ASM_X86_HYPERVISOR_H |
| 21 | #define _ASM_X86_HYPERVISOR_H |
Alok Kataria | 88b094f | 2008-10-27 10:41:46 -0700 | [diff] [blame] | 22 | |
Borislav Petkov | 6276a07 | 2013-03-04 21:20:21 +0100 | [diff] [blame] | 23 | #ifdef CONFIG_HYPERVISOR_GUEST |
| 24 | |
Sheng Yang | 2904ed8 | 2010-12-21 14:18:48 +0800 | [diff] [blame] | 25 | #include <asm/kvm_para.h> |
Sheng Yang | d9b8ca8 | 2010-12-21 14:18:49 +0800 | [diff] [blame] | 26 | #include <asm/xen/hypervisor.h> |
Sheng Yang | 2904ed8 | 2010-12-21 14:18:48 +0800 | [diff] [blame] | 27 | |
H. Peter Anvin | e08cae4 | 2010-05-07 16:57:28 -0700 | [diff] [blame] | 28 | /* |
| 29 | * x86 hypervisor information |
| 30 | */ |
| 31 | struct hypervisor_x86 { |
| 32 | /* Hypervisor name */ |
| 33 | const char *name; |
| 34 | |
| 35 | /* Detection routine */ |
Jason Wang | 9df56f1 | 2013-07-25 16:54:35 +0800 | [diff] [blame] | 36 | uint32_t (*detect)(void); |
H. Peter Anvin | e08cae4 | 2010-05-07 16:57:28 -0700 | [diff] [blame] | 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); |
Alok N Kataria | 4cca6ea | 2013-01-17 15:44:42 -0800 | [diff] [blame] | 43 | |
| 44 | /* X2APIC detection (run once per boot) */ |
| 45 | bool (*x2apic_available)(void); |
H. Peter Anvin | e08cae4 | 2010-05-07 16:57:28 -0700 | [diff] [blame] | 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; |
Boris Ostrovsky | a71dbda | 2015-05-04 11:02:15 -0400 | [diff] [blame] | 53 | extern const struct hypervisor_x86 x86_hyper_xen; |
Prarit Bhargava | fc73373 | 2012-07-06 13:47:39 -0400 | [diff] [blame] | 54 | extern const struct hypervisor_x86 x86_hyper_kvm; |
H. Peter Anvin | e08cae4 | 2010-05-07 16:57:28 -0700 | [diff] [blame] | 55 | |
Borislav Petkov | 6276a07 | 2013-03-04 21:20:21 +0100 | [diff] [blame] | 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 */ |