LXR linux/arch/x86/include/asm/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/* 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        /* ignore nopv parameter */
  57        bool ignore_nopv;
  58};
  59
  60extern bool nopv;
  61extern enum x86_hypervisor_type x86_hyper_type;
  62extern void init_hypervisor_platform(void);
  63static inline bool hypervisor_is_type(enum x86_hypervisor_type type)
  64{
  65        return x86_hyper_type == type;
  66}
  67#else
  68static inline void init_hypervisor_platform(void) { }
  69static inline bool hypervisor_is_type(enum x86_hypervisor_type type)
  70{
  71        return type == X86_HYPER_NATIVE;
  72}
  73#endif /* CONFIG_HYPERVISOR_GUEST */
  74#endif /* _ASM_X86_HYPERVISOR_H */
  75