palacios/include/palacios/vmm_symcall.h

   1 /*
   2  * This file is part of the Palacios Virtual Machine Monitor developed
   3  * by the V3VEE Project with funding from the United States National
   4  * Science Foundation and the Department of Energy.
   5  *
   6  * The V3VEE Project is a joint project between Northwestern University
   7  * and the University of New Mexico.  You can find out more at
   8  * http://www.v3vee.org
   9  *
  10  * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
  11  * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
  12  * All rights reserved.
  13  *
  14  * Author: Jack Lange <jarusl@cs.northwestern.edu>
  15  *
  16  * This is free software.  You are permitted to use,
  17  * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
  18  */
  19
  20 #ifndef __VMM_SYMCALL_H__
  21 #define __VMM_SYMCALL_H__
  22
  23 #ifdef __V3VEE__
  24
  25
  26 #include <palacios/vmm_regs.h>
  27
  28
  29
  30 struct v3_sym_cpu_context {
  31     struct v3_gprs vm_regs;
  32     struct v3_segment cs;
  33     struct v3_segment ss;
  34     uint64_t gs_base;
  35     uint64_t fs_base;
  36     uint64_t rip;
  37     uint64_t flags;
  38     uint8_t cpl;
  39 };
  40
  41 struct v3_symcall_state {
  42     struct {
  43         uint_t sym_call_active         : 1;
  44         uint_t sym_call_returned       : 1;
  45         uint_t sym_call_error          : 1;
  46     } __attribute__((packed));
  47
  48     struct v3_sym_cpu_context old_ctx;
  49
  50     int sym_call_errno;
  51
  52     uint64_t sym_call_rip;
  53     uint64_t sym_call_cs;
  54     uint64_t sym_call_rsp;
  55     uint64_t sym_call_gs;
  56     uint64_t sym_call_fs;
  57 };
  58
  59
  60 typedef uint64_t sym_arg_t;
  61
  62 #define v3_sym_call0(info, call_num)            \
  63     v3_sym_call(info, call_num, 0, 0, 0, 0, 0)
  64 #define v3_sym_call1(info, call_num, arg1)              \
  65     v3_sym_call(info, call_num, arg1, 0, 0, 0, 0)
  66 #define v3_sym_call2(info, call_num, arg1, arg2)        \
  67     v3_sym_call(info, call_num, arg1, arg2, 0, 0, 0)
  68 #define v3_sym_call3(info, call_num, arg1, arg2, arg3)  \
  69     v3_sym_call(info, call_num, arg1, arg2, arg3, 0, 0)
  70 #define v3_sym_call4(info, call_num, arg1, arg2, arg3, arg4)    \
  71     v3_sym_call(info, call_num, arg1, arg2, arg3, arg4, 0)
  72 #define v3_sym_call5(info, call_num, arg1, arg2, arg3, arg4, arg5)      \
  73     v3_sym_call(info, call_num, arg1, arg2, arg3, arg4, arg5)
  74
  75
  76
  77
  78 /* Symcall numbers */
  79 #define SYMCALL_TEST 1
  80 #define SYMCALL_MEM_LOOKUP 10
  81 /* ** */
  82
  83 int v3_sym_call(struct guest_info * info,
  84                 uint64_t call_num, sym_arg_t * arg0,
  85                 sym_arg_t * arg1, sym_arg_t * arg2,
  86                 sym_arg_t * arg3, sym_arg_t * arg4);
  87
  88
  89
  90 int v3_init_symcall_vm(struct v3_vm_info * vm);
  91
  92 #endif
  93
  94 #endif