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       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  */
      24                 :            : enum 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                 :            : 
      41                 :            : struct 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                 :            : 
      61                 :            : extern const struct hypervisor_x86 x86_hyper_vmware;
      62                 :            : extern const struct hypervisor_x86 x86_hyper_ms_hyperv;
      63                 :            : extern const struct hypervisor_x86 x86_hyper_xen_pv;
      64                 :            : extern const struct hypervisor_x86 x86_hyper_kvm;
      65                 :            : extern const struct hypervisor_x86 x86_hyper_jailhouse;
      66                 :            : extern const struct hypervisor_x86 x86_hyper_acrn;
      67                 :            : extern struct hypervisor_x86 x86_hyper_xen_hvm;
      68                 :            : 
      69                 :            : extern bool nopv;
      70                 :            : extern enum x86_hypervisor_type x86_hyper_type;
      71                 :            : extern void init_hypervisor_platform(void);
      72                 :         30 : static inline bool hypervisor_is_type(enum x86_hypervisor_type type)
      73                 :            : {
      74         [ -  + ]:         30 :         return x86_hyper_type == type;
      75                 :            : }
      76                 :            : #else
      77                 :            : static inline void init_hypervisor_platform(void) { }
      78                 :            : static 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 */