palacios/src/palacios/vmm_symbiotic.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_symbiotic.h>
  22 #include <palacios/vm_guest.h>
  23
  24
  25 #define SYM_CPUID_NUM 0x90000000
  26
  27 static int cpuid_fn(struct guest_info * core, uint32_t cpuid,
  28                     uint32_t * eax, uint32_t * ebx,
  29                     uint32_t * ecx, uint32_t * edx,
  30                     void * private_data) {
  31     extern v3_cpu_arch_t v3_cpu_types[];
  32
  33     *eax = *(uint32_t *)"V3V";
  34
  35     if ((v3_cpu_types[0] == V3_SVM_CPU) ||
  36         (v3_cpu_types[0] == V3_SVM_REV3_CPU)) {
  37         *ebx = *(uint32_t *)"SVM";
  38     } else if ((v3_cpu_types[0] == V3_VMX_CPU) ||
  39                (v3_cpu_types[0] == V3_VMX_EPT_CPU)) {
  40         *ebx = *(uint32_t *)"VMX";
  41     }
  42
  43
  44     return 0;
  45 }
  46
  47
  48 int v3_init_symbiotic_vm(struct v3_vm_info * vm) {
  49     struct v3_sym_vm_state * vm_state = &(vm->sym_vm_state);
  50     memset(vm_state, 0, sizeof(struct v3_sym_vm_state));
  51
  52     v3_hook_cpuid(vm, SYM_CPUID_NUM, cpuid_fn, NULL);
  53
  54     if (v3_init_symspy_vm(vm, &(vm_state->symspy_state)) == -1) {
  55         PrintError("Error initializing global SymSpy state\n");
  56         return -1;
  57     }
  58
  59 #ifdef V3_CONFIG_SYMCALL
  60     if (v3_init_symcall_vm(vm) == -1) {
  61         PrintError("Error intializing global SymCall state\n");
  62         return -1;
  63     }
  64 #endif
  65
  66 #ifdef V3_CONFIG_SYMMOD
  67     if (v3_init_symmod_vm(vm, vm->cfg_data->cfg) == -1) {
  68         PrintError("Error initializing global SymMod state\n");
  69         return -1;
  70     }
  71 #endif
  72
  73
  74     return 0;
  75 }
  76
  77
  78 int v3_deinit_symbiotic_vm(struct v3_vm_info * vm) {
  79
  80 #ifdef V3_CONFIG_SYMMOD
  81     if (v3_deinit_symmod_vm(vm) == -1) {
  82         PrintError("Error deinitializing global SymMod state\n");
  83         return -1;
  84     }
  85 #endif
  86
  87     v3_unhook_cpuid(vm, SYM_CPUID_NUM);
  88
  89
  90     return 0;
  91 }
  92
  93
  94
  95 int v3_init_symbiotic_core(struct guest_info * core) {
  96     struct v3_sym_core_state * core_state = &(core->sym_core_state);
  97     memset(core_state, 0, sizeof(struct v3_sym_core_state));
  98
  99
 100     if (v3_init_symspy_core(core, &(core_state->symspy_state)) == -1) {
 101         PrintError("Error intializing local SymSpy state\n");
 102         return -1;
 103     }
 104
 105     return 0;
 106 }
 107
 108
 109 int v3_deinit_symbiotic_core(struct guest_info * core) {
 110
 111     return 0;
 112 }