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  */
24enum 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
41struct 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
61extern const struct hypervisor_x86 x86_hyper_vmware;
62extern const struct hypervisor_x86 x86_hyper_ms_hyperv;
63extern const struct hypervisor_x86 x86_hyper_xen_pv;
64extern const struct hypervisor_x86 x86_hyper_kvm;
65extern const struct hypervisor_x86 x86_hyper_jailhouse;
66extern const struct hypervisor_x86 x86_hyper_acrn;
67extern struct hypervisor_x86 x86_hyper_xen_hvm;
68
69extern bool nopv;
70extern enum x86_hypervisor_type x86_hyper_type;
71extern void init_hypervisor_platform(void);
72static inline bool hypervisor_is_type(enum x86_hypervisor_type type)
73{
74	return x86_hyper_type == type;
75}
76#else
77static inline void init_hypervisor_platform(void) { }
78static 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