palacios/include/geekos/vmm.h

   1 #ifndef __VMM_H
   2 #define __VMM_H
   3
   4
   5 #include <geekos/ktypes.h>
   6 #include <geekos/string.h>
   7
   8 #include <geekos/vmm_mem.h>
   9 #include <geekos/vmm_paging.h>
  10
  11 #include <geekos/vm_guest.h>
  12
  13 /* utility definitions */
  14 #define PrintDebug(fmt, args...)                        \
  15   do {                                                  \
  16     extern struct vmm_os_hooks * os_hooks;              \
  17     if ((os_hooks) && (os_hooks)->print_debug) {        \
  18       (os_hooks)->print_debug((fmt), ##args);           \
  19     }                                                   \
  20   } while (0)                                           \
  21
  22
  23
  24 #define PrintInfo(fmt, args...)                         \
  25   do {                                                  \
  26     extern struct vmm_os_hooks * os_hooks;              \
  27     if ((os_hooks) && (os_hooks)->print_info) {         \
  28       (os_hooks)->print_info((fmt), ##args);            \
  29     }                                                   \
  30   } while (0)                                           \
  31
  32
  33 #define PrintTrace(fmt, args...)                        \
  34   do {                                                  \
  35     extern struct vmm_os_hooks * os_hooks;              \
  36     if ((os_hooks) && (os_hooks)->print_trace) {        \
  37       (os_hooks)->print_trace((fmt), ##args);           \
  38     }                                                   \
  39   } while (0)                                           \
  40
  41
  42
  43
  44 /* This clearly won't work, we need some way to get a return value out of it */
  45 #define VMMMalloc(size)                                 \
  46   do {                                                  \
  47     extern struct vmm_os_hooks * os_hooks;              \
  48     if ((os_hooks) && (os_hooks)->malloc) {             \
  49       (os_hooks)->malloc(size);                         \
  50     }                                                   \
  51   } while (0)                                           \
  52
  53
  54 // We need to check the hook structure at runtime to ensure its SAFE
  55 #define VMMFree(addr)                                   \
  56   do {                                                  \
  57     extern struct vmm_os_hooks * os_hooks;              \
  58     if ((os_hooks) && (os_hooks)->free) {               \
  59       (os_hooks)->free(addr);                           \
  60     }                                                   \
  61   } while (0)                                           \
  62
  63
  64 /* ** */
  65
  66
  67 #define VMM_INVALID_CPU 0
  68 #define VMM_VMX_CPU 1
  69 #define VMM_SVM_CPU 2
  70
  71
  72
  73
  74
  75
  76 /* We need a memory map and an IO device map */
  77
  78 /* This will contain function pointers that provide OS services */
  79 struct vmm_os_hooks {
  80   void (*print_info)(const char * format, ...);
  81   void (*print_debug)(const char * format, ...);
  82   void (*print_trace)(const char * format, ...);
  83
  84   void *(*allocate_pages)(int numPages);
  85   void (*free_page)(void * page);
  86
  87   void *(*malloc)(uint_t size);
  88   void (*free)(void * addr);
  89
  90
  91   void (*start_kernel_thread)(); // include pointer to function
  92 };
  93
  94
  95
  96
  97 /* This will contain Function pointers that control the VMs */
  98 struct vmm_ctrl_ops {
  99   int (*init_guest)(struct guest_info* info);
 100   int (*start_guest)(struct guest_info * info);
 101   //  int (*stop_vm)(uint_t vm_id);
 102 };
 103
 104
 105
 106
 107
 108
 109
 110 void Init_VMM(struct vmm_os_hooks * hooks, struct vmm_ctrl_ops * vmm_ops);
 111
 112
 113
 114
 115
 116 #endif