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};
33
34#ifdef CONFIG_HYPERVISOR_GUEST
35
36#include <asm/kvm_para.h>
37#include <asm/x86_init.h>
38#include <asm/xen/hypervisor.h>
39
 
 
 
 
 
 
40struct hypervisor_x86 {
41	/* Hypervisor name */
42	const char	*name;
43
44	/* Detection routine */
45	uint32_t	(*detect)(void);
46
47	/* Hypervisor type */
48	enum x86_hypervisor_type type;
49
50	/* init time callbacks */
51	struct x86_hyper_init init;
52
53	/* runtime callbacks */
54	struct x86_hyper_runtime runtime;
55};
56
57extern enum x86_hypervisor_type x86_hyper_type;
58extern void init_hypervisor_platform(void);
59static inline bool hypervisor_is_type(enum x86_hypervisor_type type)
60{
61	return x86_hyper_type == type;
62}
63#else
64static inline void init_hypervisor_platform(void) { }
65static inline bool hypervisor_is_type(enum x86_hypervisor_type type)
66{
67	return type == X86_HYPER_NATIVE;
 
 
 
 
68}
69#endif /* CONFIG_HYPERVISOR_GUEST */
70#endif /* _ASM_X86_HYPERVISOR_H */

 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#include <asm/kvm_para.h>
 
24#include <asm/xen/hypervisor.h>
25
26extern void init_hypervisor(struct cpuinfo_x86 *c);
27extern void init_hypervisor_platform(void);
28
29/*
30 * x86 hypervisor information
31 */
32struct hypervisor_x86 {
33	/* Hypervisor name */
34	const char	*name;
35
36	/* Detection routine */
37	bool		(*detect)(void);
 
 
 
38
39	/* Adjust CPU feature bits (run once per CPU) */
40	void		(*set_cpu_features)(struct cpuinfo_x86 *);
41
42	/* Platform setup (run once per boot) */
43	void		(*init_platform)(void);
44};
45
46extern const struct hypervisor_x86 *x86_hyper;
47
48/* Recognized hypervisors */
49extern const struct hypervisor_x86 x86_hyper_vmware;
50extern const struct hypervisor_x86 x86_hyper_ms_hyperv;
51extern const struct hypervisor_x86 x86_hyper_xen_hvm;
52
53static inline bool hypervisor_x2apic_available(void)
 
54{
55	if (kvm_para_available())
56		return true;
57	if (xen_x2apic_para_available())
58		return true;
59	return false;
60}
61
62#endif