Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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;
52extern const struct hypervisor_x86 x86_hyper_kvm;
53
54static inline bool hypervisor_x2apic_available(void)
55{
56 if (kvm_para_available())
57 return true;
58 if (xen_x2apic_para_available())
59 return true;
60 return false;
61}
62
63#endif