palacios/include/palacios/vmm_sym_iface.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
  21 #ifndef __VMM_SYM_IFACE_H__
  22 #define __VMM_SYM_IFACE_H__
  23
  24 #ifdef __V3VEE__
  25
  26
  27
  28
  29 struct v3_sym_global_page {
  30     uint64_t magic;
  31
  32     union {
  33         uint32_t feature_flags;
  34         struct {
  35             uint_t pci_map_valid      : 1;
  36         } __attribute__((packed));
  37     } __attribute__((packed));
  38
  39     uint8_t pci_pt_map[(4 * 256) / 8]; // we're hardcoding this: (4 busses, 256 max devs)
  40
  41 } __attribute__((packed));
  42
  43 struct v3_sym_local_page {
  44     uint64_t magic;
  45
  46     union {
  47         uint32_t state_flags;
  48         struct {
  49             uint32_t sym_call_active        : 1;
  50             uint32_t sym_call_enabled       : 1;
  51         } __attribute__((packed));
  52     } __attribute__((packed));
  53 };
  54
  55
  56 #include <palacios/vm_guest.h>
  57
  58
  59 struct v3_sym_cpu_context {
  60     struct v3_gprs vm_regs;
  61     struct v3_segment cs;
  62     struct v3_segment ss;
  63     uint64_t gs_base;
  64     uint64_t fs_base;
  65     uint64_t rip;
  66     uint64_t flags;
  67     uint8_t cpl;
  68 };
  69
  70 struct v3_symcall_state {
  71     struct {
  72         uint_t sym_call_active         : 1;
  73         uint_t sym_call_returned       : 1;
  74         uint_t sym_call_error          : 1;
  75     } __attribute__((packed));
  76
  77     struct v3_sym_cpu_context old_ctx;
  78
  79     int sym_call_errno;
  80
  81     uint64_t sym_call_rip;
  82     uint64_t sym_call_cs;
  83     uint64_t sym_call_rsp;
  84     uint64_t sym_call_gs;
  85     uint64_t sym_call_fs;
  86 };
  87
  88 struct v3_sym_global_state {
  89     struct v3_sym_global_page * sym_page;
  90
  91     addr_t global_page_pa;
  92     uint64_t global_guest_pa;
  93
  94     int active; // activated when symbiotic page MSR is written
  95 };
  96
  97
  98 struct v3_sym_local_state {
  99     struct v3_sym_local_page * local_page;
 100
 101     addr_t local_page_pa;
 102     uint64_t local_guest_pa;
 103
 104     struct v3_symcall_state symcall_state;
 105
 106     int active;  // activated when symbiotic page MSR is written
 107 };
 108
 109
 110
 111
 112
 113 int v3_init_sym_iface(struct v3_vm_info * vm);
 114
 115
 116 typedef uint64_t sym_arg_t;
 117
 118 #define v3_sym_call0(info, call_num)            \
 119     v3_sym_call(info, call_num, 0, 0, 0, 0, 0)
 120 #define v3_sym_call1(info, call_num, arg1)              \
 121     v3_sym_call(info, call_num, arg1, 0, 0, 0, 0)
 122 #define v3_sym_call2(info, call_num, arg1, arg2)        \
 123     v3_sym_call(info, call_num, arg1, arg2, 0, 0, 0)
 124 #define v3_sym_call3(info, call_num, arg1, arg2, arg3)  \
 125     v3_sym_call(info, call_num, arg1, arg2, arg3, 0, 0)
 126 #define v3_sym_call4(info, call_num, arg1, arg2, arg3, arg4)    \
 127     v3_sym_call(info, call_num, arg1, arg2, arg3, arg4, 0)
 128 #define v3_sym_call5(info, call_num, arg1, arg2, arg3, arg4, arg5)      \
 129     v3_sym_call(info, call_num, arg1, arg2, arg3, arg4, arg5)
 130
 131
 132
 133
 134 int v3_sym_map_pci_passthrough(struct v3_vm_info * vm, uint_t bus, uint_t dev, uint_t fn);
 135 int v3_sym_unmap_pci_passthrough(struct v3_vm_info * vm, uint_t bus, uint_t dev, uint_t fn);
 136
 137
 138 /* Symcall numbers */
 139 #define SYMCALL_TEST 1
 140 #define SYMCALL_MEM_LOOKUP 10
 141 /* ** */
 142
 143 int v3_sym_call(struct guest_info * info,
 144                 uint64_t call_num, sym_arg_t * arg0,
 145                 sym_arg_t * arg1, sym_arg_t * arg2,
 146                 sym_arg_t * arg3, sym_arg_t * arg4);
 147
 148
 149 #endif
 150
 151 #endif