palacios/src/extensions/ext_inspector.c

   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 //#include <palacios/vmm_inspector.h>
  22 #include <palacios/vmm.h>
  23 #include <palacios/vm_guest.h>
  24 #include <palacios/vmm_sprintf.h>
  25 #include <palacios/vmm_extensions.h>
  26
  27 #include <palacios/vmm_multitree.h>
  28 #include <interfaces/inspector.h>
  29
  30 // Note that v3_inspect_node_t is actuall a struct v3_mtree
  31 // Its set as void for opaque portability
  32
  33 struct v3_inspector_state {
  34     struct v3_mtree state_tree;
  35
  36 };
  37
  38
  39 static int init_inspector(struct v3_vm_info * vm, v3_cfg_tree_t * cfg, void ** priv_data) {
  40     struct v3_inspector_state * state = V3_Malloc(sizeof(struct v3_inspector_state));
  41     memset(state, 0, sizeof(struct v3_inspector_state));
  42
  43     strncpy(state->state_tree.name, "vm->name", 50);
  44     state->state_tree.subtree = 1;
  45
  46     *priv_data = state;
  47
  48     return 0;
  49 }
  50
  51
  52 static int init_inspector_core(struct guest_info * core, void * priv_data) {
  53     struct v3_inspector_state * vm_state = priv_data;
  54     char core_name[50];
  55
  56     snprintf(core_name, 50, "core.%d", core->cpu_id);
  57
  58     {
  59         struct v3_mtree * core_node = v3_mtree_create_subtree(&(vm_state->state_tree), core_name);
  60         v3_inspect_64(core_node, "RIP", (uint64_t *)&(core->rip));
  61         v3_inspect_64(core_node, "NUM_EXITS", (uint64_t *)&(core->num_exits));
  62         //      v3_inspect_buf(core_node, "EXEC_NAME", core->exec_name, sizeof(core->exec_name));
  63
  64
  65         struct v3_mtree * gpr_node = v3_mtree_create_subtree(core_node, "GPRS");
  66         v3_inspect_64(gpr_node, "RAX", (uint64_t *)&(core->vm_regs.rax));
  67         v3_inspect_64(gpr_node, "RBX", (uint64_t *)&(core->vm_regs.rbx));
  68         v3_inspect_64(gpr_node, "RCX", (uint64_t *)&(core->vm_regs.rcx));
  69         v3_inspect_64(gpr_node, "RDX", (uint64_t *)&(core->vm_regs.rdx));
  70         v3_inspect_64(gpr_node, "RSP", (uint64_t *)&(core->vm_regs.rsp));
  71         v3_inspect_64(gpr_node, "RBP", (uint64_t *)&(core->vm_regs.rbp));
  72         v3_inspect_64(gpr_node, "RSI", (uint64_t *)&(core->vm_regs.rsi));
  73         v3_inspect_64(gpr_node, "RDI", (uint64_t *)&(core->vm_regs.rdi));
  74
  75
  76         struct v3_mtree * cr_node = v3_mtree_create_subtree(core_node, "CTRL_REGS");
  77         v3_inspect_64(cr_node, "CR0", (uint64_t *)&(core->ctrl_regs.cr0));
  78         v3_inspect_64(cr_node, "CR2", (uint64_t *)&(core->ctrl_regs.cr2));
  79         v3_inspect_64(cr_node, "CR3", (uint64_t *)&(core->ctrl_regs.cr3));
  80         v3_inspect_64(cr_node, "CR4", (uint64_t *)&(core->ctrl_regs.cr4));
  81         v3_inspect_64(cr_node, "RFLAGS", (uint64_t *)&(core->ctrl_regs.rflags));
  82         v3_inspect_64(cr_node, "EFER", (uint64_t *)&(core->ctrl_regs.efer));
  83
  84
  85         //struct v3_mtree * seg_node = v3_mtree_create_subtree(core_node, "SEGMENTS");
  86
  87
  88
  89     }
  90
  91     return 0;
  92 }
  93
  94
  95
  96
  97
  98 static struct v3_extension_impl inspector_impl = {
  99     .name = "inspector",
 100     .init = init_inspector,
 101     .deinit = NULL,
 102     .core_init = init_inspector_core,
 103     .core_deinit = NULL,
 104     .on_entry = NULL,
 105     .on_exit = NULL
 106 };
 107
 108
 109 register_extension(&inspector_impl);
 110
 111
 112 v3_inspect_node_t * v3_inspect_add_subtree(v3_inspect_node_t * root, char * name) {
 113     return v3_mtree_create_subtree(root, name);
 114 }
 115
 116 int v3_inspect_8(v3_inspect_node_t * node, char * name, uint8_t * val) {
 117     v3_mtree_create_value(node, name, 1, val);
 118     return 0;
 119 }
 120
 121
 122 int v3_inspect_16(v3_inspect_node_t * node, char * name, uint16_t * val) {
 123     v3_mtree_create_value(node, name, 2, val);
 124
 125     return 0;
 126 }
 127
 128 int v3_inspect_32(v3_inspect_node_t * node, char * name, uint32_t * val) {
 129     v3_mtree_create_value(node, name, 4, val);
 130     return 0;
 131 }
 132
 133 int v3_inspect_64(v3_inspect_node_t * node, char * name, uint64_t * val) {
 134     v3_mtree_create_value(node, name, 8, val);
 135     return 0;
 136 }
 137
 138 int v3_inspect_addr(v3_inspect_node_t * node, char * name, addr_t * val) {
 139     v3_mtree_create_value(node, name, sizeof(addr_t), val);
 140     return 0;
 141 }
 142
 143 int v3_inspect_buf(v3_inspect_node_t * node, char * name,
 144                    uint8_t * buf, uint64_t size) {
 145     v3_mtree_create_value(node, name, size, buf);
 146
 147     return 0;
 148 }
 149
 150
 151
 152 int v3_find_inspection_value(v3_inspect_node_t * node, char * name,
 153                            struct v3_inspection_value * value) {
 154     struct v3_mtree * mt_node = v3_mtree_find_node(node, name);
 155
 156     if (!mt_node) {
 157         return -1;
 158     }
 159
 160     *value = v3_inspection_value(mt_node);
 161
 162     return 0;
 163 }
 164
 165 struct v3_inspection_value v3_inspection_value(v3_inspect_node_t * node) {
 166     struct v3_mtree * mt_node = node;
 167     struct v3_inspection_value value;
 168
 169     value.value = mt_node->value;
 170     value.size = mt_node->size;
 171     value.flags = mt_node->user_flags;
 172     value.name = mt_node->name;
 173
 174     return value;
 175 }
 176
 177
 178
 179 v3_inspect_node_t * v3_get_inspection_root(struct v3_vm_info * vm) {
 180     struct v3_inspector_state * inspector = v3_get_extension_state(vm, inspector_impl.name);
 181
 182     if (inspector == NULL) {
 183         return NULL;
 184     }
 185
 186     return &(inspector->state_tree);
 187 }
 188
 189 v3_inspect_node_t * v3_get_inspection_subtree(v3_inspect_node_t * root, char * name) {
 190     return v3_mtree_find_subtree(root, name);
 191 }
 192
 193
 194 v3_inspect_node_t * v3_inspection_node_next(v3_inspect_node_t * node) {
 195     return v3_mtree_next_node(node);
 196 }
 197
 198 v3_inspect_node_t * v3_inspection_first_child(v3_inspect_node_t * root) {
 199     return v3_mtree_first_child(root);
 200 }
 201
 202
 203
 204