qemu/roms/seabios/src/fw/xen.h

   1 #ifndef __XEN_H
   2 #define __XEN_H
   3
   4 void xen_preinit(void);
   5 void xen_ramsize_preinit(void);
   6 void xen_hypercall_setup(void);
   7 void xen_biostable_setup(void);
   8
   9 extern unsigned long xen_hypercall_page;
  10
  11 #define _hypercall0(type, name)                                         \
  12 ({                                                                      \
  13     unsigned long __hentry = xen_hypercall_page+__HYPERVISOR_##name*32; \
  14     long __res;                                                         \
  15     asm volatile (                                                      \
  16         "call *%%eax"                                                   \
  17         : "=a" (__res)                                                  \
  18         : "0" (__hentry)                                                \
  19         : "memory" );                                                   \
  20     (type)__res;                                                        \
  21 })
  22
  23 #define _hypercall1(type, name, a1)                                     \
  24 ({                                                                      \
  25     unsigned long __hentry = xen_hypercall_page+__HYPERVISOR_##name*32; \
  26     long __res, __ign1;                                                 \
  27     asm volatile (                                                      \
  28         "call *%%eax"                                                   \
  29         : "=a" (__res), "=b" (__ign1)                                   \
  30         : "0" (__hentry), "1" ((long)(a1))                              \
  31         : "memory" );                                                   \
  32     (type)__res;                                                        \
  33 })
  34
  35 #define _hypercall2(type, name, a1, a2)                                 \
  36 ({                                                                      \
  37     unsigned long __hentry = xen_hypercall_page+__HYPERVISOR_##name*32; \
  38     long __res, __ign1, __ign2;                                         \
  39     asm volatile (                                                      \
  40         "call *%%eax"                                                   \
  41         : "=a" (__res), "=b" (__ign1), "=c" (__ign2)                    \
  42         : "0" (__hentry), "1" ((long)(a1)), "2" ((long)(a2))            \
  43         : "memory" );                                                   \
  44     (type)__res;                                                        \
  45 })
  46
  47 #define _hypercall3(type, name, a1, a2, a3)                             \
  48 ({                                                                      \
  49     unsigned long __hentry = xen_hypercall_page+__HYPERVISOR_##name*32; \
  50     long __res, __ign1, __ign2, __ign3;                                 \
  51     asm volatile (                                                      \
  52         "call *%%eax"                                                   \
  53         : "=a" (__res), "=b" (__ign1), "=c" (__ign2),                   \
  54           "=d" (__ign3)                                                 \
  55         : "0" (__hentry), "1" ((long)(a1)), "2" ((long)(a2)),           \
  56           "3" ((long)(a3))                                              \
  57         : "memory" );                                                   \
  58     (type)__res;                                                        \
  59 })
  60
  61 #define _hypercall4(type, name, a1, a2, a3, a4)                         \
  62 ({                                                                      \
  63     unsigned long __hentry = xen_hypercall_page+__HYPERVISOR_##name*32; \
  64     long __res, __ign1, __ign2, __ign3, __ign4;                         \
  65     asm volatile (                                                      \
  66         "call *%%eax"                                                   \
  67         : "=a" (__res), "=b" (__ign1), "=c" (__ign2),                   \
  68           "=d" (__ign3), "=S" (__ign4)                                  \
  69         : "0" (__hentry), "1" ((long)(a1)), "2" ((long)(a2)),           \
  70           "3" ((long)(a3)), "4" ((long)(a4))                            \
  71         : "memory" );                                                   \
  72     (type)__res;                                                        \
  73 })
  74
  75 #define _hypercall5(type, name, a1, a2, a3, a4, a5)                     \
  76 ({                                                                      \
  77     unsigned long __hentry = xen_hypercall_page+__HYPERVISOR_##name*32; \
  78     long __res, __ign1, __ign2, __ign3, __ign4, __ign5;                 \
  79     asm volatile (                                                      \
  80         "call *%%eax"                                                   \
  81         : "=a" (__res), "=b" (__ign1), "=c" (__ign2),                   \
  82           "=d" (__ign3), "=S" (__ign4), "=D" (__ign5)                   \
  83         : "0" (__hentry), "1" ((long)(a1)), "2" ((long)(a2)),           \
  84           "3" ((long)(a3)), "4" ((long)(a4)),                           \
  85           "5" ((long)(a5))                                              \
  86         : "memory" );                                                   \
  87     (type)__res;                                                        \
  88 })
  89
  90 /******************************************************************************
  91  *
  92  * The following interface definitions are taken from Xen and have the
  93  * following license:
  94  *
  95  * Permission is hereby granted, free of charge, to any person obtaining a copy
  96  * of this software and associated documentation files (the "Software"), to
  97  * deal in the Software without restriction, including without limitation the
  98  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  99  * sell copies of the Software, and to permit persons to whom the Software is
 100  * furnished to do so, subject to the following conditions:
 101  *
 102  * The above copyright notice and this permission notice shall be included in
 103  * all copies or substantial portions of the Software.
 104  *
 105  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 106  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 107  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 108  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 109  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 110  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 111  * DEALINGS IN THE SOFTWARE.
 112  */
 113
 114 /* xen.h */
 115
 116 #define __HYPERVISOR_xen_version          17
 117
 118 /* version.h */
 119
 120 /* arg == xen_extraversion_t. */
 121 #define XENVER_extraversion 1
 122 typedef char xen_extraversion_t[16];
 123 #define XEN_EXTRAVERSION_LEN (sizeof(xen_extraversion_t))
 124
 125 #endif