xref: /openbmc/linux/arch/x86/include/asm/hypervisor.h (revision 68198dca)
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 #ifdef CONFIG_HYPERVISOR_GUEST
24 
25 #include <asm/kvm_para.h>
26 #include <asm/x86_init.h>
27 #include <asm/xen/hypervisor.h>
28 
29 /*
30  * x86 hypervisor information
31  */
32 
33 enum x86_hypervisor_type {
34 	X86_HYPER_NATIVE = 0,
35 	X86_HYPER_VMWARE,
36 	X86_HYPER_MS_HYPERV,
37 	X86_HYPER_XEN_PV,
38 	X86_HYPER_XEN_HVM,
39 	X86_HYPER_KVM,
40 };
41 
42 struct hypervisor_x86 {
43 	/* Hypervisor name */
44 	const char	*name;
45 
46 	/* Detection routine */
47 	uint32_t	(*detect)(void);
48 
49 	/* Hypervisor type */
50 	enum x86_hypervisor_type type;
51 
52 	/* init time callbacks */
53 	struct x86_hyper_init init;
54 
55 	/* runtime callbacks */
56 	struct x86_hyper_runtime runtime;
57 };
58 
59 extern enum x86_hypervisor_type x86_hyper_type;
60 extern void init_hypervisor_platform(void);
61 #else
62 static inline void init_hypervisor_platform(void) { }
63 #endif /* CONFIG_HYPERVISOR_GUEST */
64 #endif /* _ASM_X86_HYPERVISOR_H */
65