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 #include <palacios/vm_guest.h>
  27
  28
  29
  30 struct v3_sym_interface {
  31     uint64_t magic;
  32
  33
  34     union {
  35         uint32_t feature_flags;
  36         struct {
  37             uint_t pci_map_valid          : 1;
  38             uint32_t sym_call_enabled       : 1;
  39         } __attribute__((packed));
  40     } __attribute__((packed));
  41
  42     union {
  43         uint32_t state_flags;
  44         struct {
  45             uint32_t sym_call_active        : 1;
  46         } __attribute__((packed));
  47     } __attribute__((packed));
  48
  49     uint64_t current_proc;
  50     uint64_t proc_list;
  51
  52     uint8_t pci_pt_map[(4 * 256) / 8]; // we're hardcoding this: (4 busses, 256 max devs)
  53
  54
  55
  56
  57 } __attribute__((packed));
  58
  59
  60
  61
  62 struct v3_sym_context {
  63     struct v3_gprs vm_regs;
  64     struct v3_segment cs;
  65     struct v3_segment ss;
  66     uint64_t gs_base;
  67     uint64_t fs_base;
  68     uint64_t rip;
  69     uint64_t flags;
  70     uint8_t cpl;
  71 };
  72
  73
  74
  75 struct v3_sym_state {
  76
  77     struct v3_sym_interface * sym_page;
  78     addr_t sym_page_pa;
  79
  80     uint64_t guest_pg_addr;
  81
  82     struct {
  83         uint_t active                  : 1; // activated when symbiotic page MSR is written
  84         uint_t sym_call_active         : 1;
  85         uint_t sym_call_returned       : 1;
  86         uint_t sym_call_error          : 1;
  87     } __attribute__((packed));
  88
  89     struct v3_sym_context old_ctx;
  90
  91     int sym_call_errno;
  92
  93     uint64_t sym_call_rip;
  94     uint64_t sym_call_cs;
  95     uint64_t sym_call_rsp;
  96     uint64_t sym_call_gs;
  97     uint64_t sym_call_fs;
  98 };
  99
 100 int v3_init_sym_iface(struct guest_info * info);
 101
 102
 103 typedef uint64_t sym_arg_t;
 104
 105 #define v3_sym_call0(info, call_num)            \
 106     v3_sym_call(info, call_num, 0, 0, 0, 0, 0)
 107 #define v3_sym_call1(info, call_num, arg1)              \
 108     v3_sym_call(info, call_num, arg1, 0, 0, 0, 0)
 109 #define v3_sym_call2(info, call_num, arg1, arg2)        \
 110     v3_sym_call(info, call_num, arg1, arg2, 0, 0, 0)
 111 #define v3_sym_call3(info, call_num, arg1, arg2, arg3)  \
 112     v3_sym_call(info, call_num, arg1, arg2, arg3, 0, 0)
 113 #define v3_sym_call4(info, call_num, arg1, arg2, arg3, arg4)    \
 114     v3_sym_call(info, call_num, arg1, arg2, arg3, arg4, 0)
 115 #define v3_sym_call5(info, call_num, arg1, arg2, arg3, arg4, arg5)      \
 116     v3_sym_call(info, call_num, arg1, arg2, arg3, arg4, arg5)
 117
 118
 119
 120
 121 int v3_sym_map_pci_passthrough(struct guest_info * info, uint_t bus, uint_t dev, uint_t fn);
 122 int v3_sym_unmap_pci_passthrough(struct guest_info * info, uint_t bus, uint_t dev, uint_t fn);
 123
 124
 125 /* Symcall numbers */
 126 #define SYMCALL_TEST 1
 127 #define SYMCALL_MEM_LOOKUP 10
 128 /* ** */
 129
 130 int v3_sym_call(struct guest_info * info,
 131                 uint64_t call_num, sym_arg_t * arg0,
 132                 sym_arg_t * arg1, sym_arg_t * arg2,
 133                 sym_arg_t * arg3, sym_arg_t * arg4);
 134
 135
 136 #endif
 137
 138 #endif