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
  42     if (!state) {
  43         PrintError(vm, VCORE_NONE, "Cannot allocate state in inspector\n");
  44         return -1;
  45     }
  46
  47     memset(state, 0, sizeof(struct v3_inspector_state));
  48
  49     strncpy(state->state_tree.name, "vm->name", 50);
  50     state->state_tree.name[49] = 0;
  51     state->state_tree.subtree = 1;
  52
  53     *priv_data = state;
  54
  55     return 0;
  56 }
  57
  58
  59 static int init_inspector_core(struct guest_info * core, void * priv_data, void ** core_data) {
  60     struct v3_inspector_state * vm_state = priv_data;
  61     char core_name[50];
  62
  63     snprintf(core_name, 50, "core.%d", core->vcpu_id);
  64
  65     {
  66         struct v3_mtree * core_node = v3_mtree_create_subtree(&(vm_state->state_tree), core_name);
  67         v3_inspect_64(core_node, "RIP", (uint64_t *)&(core->rip));
  68         v3_inspect_64(core_node, "NUM_EXITS", (uint64_t *)&(core->num_exits));
  69         //      v3_inspect_buf(core_node, "EXEC_NAME", core->exec_name, sizeof(core->exec_name));
  70
  71
  72         struct v3_mtree * gpr_node = v3_mtree_create_subtree(core_node, "GPRS");
  73         v3_inspect_64(gpr_node, "RAX", (uint64_t *)&(core->vm_regs.rax));
  74         v3_inspect_64(gpr_node, "RBX", (uint64_t *)&(core->vm_regs.rbx));
  75         v3_inspect_64(gpr_node, "RCX", (uint64_t *)&(core->vm_regs.rcx));
  76         v3_inspect_64(gpr_node, "RDX", (uint64_t *)&(core->vm_regs.rdx));
  77         v3_inspect_64(gpr_node, "RSP", (uint64_t *)&(core->vm_regs.rsp));
  78         v3_inspect_64(gpr_node, "RBP", (uint64_t *)&(core->vm_regs.rbp));
  79         v3_inspect_64(gpr_node, "RSI", (uint64_t *)&(core->vm_regs.rsi));
  80         v3_inspect_64(gpr_node, "RDI", (uint64_t *)&(core->vm_regs.rdi));
  81
  82
  83         struct v3_mtree * cr_node = v3_mtree_create_subtree(core_node, "CTRL_REGS");
  84         v3_inspect_64(cr_node, "CR0", (uint64_t *)&(core->ctrl_regs.cr0));
  85         v3_inspect_64(cr_node, "CR2", (uint64_t *)&(core->ctrl_regs.cr2));
  86         v3_inspect_64(cr_node, "CR3", (uint64_t *)&(core->ctrl_regs.cr3));
  87         v3_inspect_64(cr_node, "CR4", (uint64_t *)&(core->ctrl_regs.cr4));
  88         v3_inspect_64(cr_node, "RFLAGS", (uint64_t *)&(core->ctrl_regs.rflags));
  89         v3_inspect_64(cr_node, "EFER", (uint64_t *)&(core->ctrl_regs.efer));
  90
  91
  92         //struct v3_mtree * seg_node = v3_mtree_create_subtree(core_node, "SEGMENTS");
  93
  94
  95
  96     }
  97
  98     return 0;
  99 }
 100
 101
 102
 103
 104
 105 static struct v3_extension_impl inspector_impl = {
 106     .name = "inspector",
 107     .init = NULL,
 108     .vm_init = init_inspector,
 109     .vm_deinit = NULL,
 110     .core_init = init_inspector_core,
 111     .core_deinit = NULL,
 112     .on_entry = NULL,
 113     .on_exit = NULL
 114 };
 115
 116
 117 register_extension(&inspector_impl);
 118
 119
 120 v3_inspect_node_t * v3_inspect_add_subtree(v3_inspect_node_t * root, char * name) {
 121     return v3_mtree_create_subtree(root, name);
 122 }
 123
 124 int v3_inspect_8(v3_inspect_node_t * node, char * name, uint8_t * val) {
 125     v3_mtree_create_value(node, name, 1, val);
 126     return 0;
 127 }
 128
 129
 130 int v3_inspect_16(v3_inspect_node_t * node, char * name, uint16_t * val) {
 131     v3_mtree_create_value(node, name, 2, val);
 132
 133     return 0;
 134 }
 135
 136 int v3_inspect_32(v3_inspect_node_t * node, char * name, uint32_t * val) {
 137     v3_mtree_create_value(node, name, 4, val);
 138     return 0;
 139 }
 140
 141 int v3_inspect_64(v3_inspect_node_t * node, char * name, uint64_t * val) {
 142     v3_mtree_create_value(node, name, 8, val);
 143     return 0;
 144 }
 145
 146 int v3_inspect_addr(v3_inspect_node_t * node, char * name, addr_t * val) {
 147     v3_mtree_create_value(node, name, sizeof(addr_t), val);
 148     return 0;
 149 }
 150
 151 int v3_inspect_buf(v3_inspect_node_t * node, char * name,
 152                    uint8_t * buf, uint64_t size) {
 153     v3_mtree_create_value(node, name, size, buf);
 154
 155     return 0;
 156 }
 157
 158
 159
 160 int v3_find_inspection_value(v3_inspect_node_t * node, char * name,
 161                            struct v3_inspection_value * value) {
 162     struct v3_mtree * mt_node = v3_mtree_find_node(node, name);
 163
 164     if (!mt_node) {
 165         return -1;
 166     }
 167
 168     *value = v3_inspection_value(mt_node);
 169
 170     return 0;
 171 }
 172
 173 struct v3_inspection_value v3_inspection_value(v3_inspect_node_t * node) {
 174     struct v3_mtree * mt_node = node;
 175     struct v3_inspection_value value;
 176
 177     value.value = mt_node->value;
 178     value.size = mt_node->size;
 179     value.flags = mt_node->user_flags;
 180     value.name = mt_node->name;
 181
 182     return value;
 183 }
 184
 185
 186
 187 v3_inspect_node_t * v3_get_inspection_root(struct v3_vm_info * vm) {
 188     struct v3_inspector_state * inspector = v3_get_extension_state(vm, inspector_impl.name);
 189
 190     if (inspector == NULL) {
 191         return NULL;
 192     }
 193
 194     return &(inspector->state_tree);
 195 }
 196
 197 v3_inspect_node_t * v3_get_inspection_subtree(v3_inspect_node_t * root, char * name) {
 198     return v3_mtree_find_subtree(root, name);
 199 }
 200
 201
 202 v3_inspect_node_t * v3_inspection_node_next(v3_inspect_node_t * node) {
 203     return v3_mtree_next_node(node);
 204 }
 205
 206 v3_inspect_node_t * v3_inspection_first_child(v3_inspect_node_t * root) {
 207     return v3_mtree_first_child(root);
 208 }
 209
 210
 211
 212