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
  10
  11 /* utility definitions */
  12 #define PrintDebug(fmt, args...)                        \
  13   do {                                                  \
  14     extern struct vmm_os_hooks * os_hooks;              \
  15     if ((os_hooks) && (os_hooks)->print_debug) {        \
  16       (os_hooks)->print_debug((fmt), ##args);           \
  17     }                                                   \
  18   } while (0)                                           \
  19
  20
  21
  22 #define PrintInfo(fmt, args...)                         \
  23   do {                                                  \
  24     extern struct vmm_os_hooks * os_hooks;              \
  25     if ((os_hooks) && (os_hooks)->print_info) {         \
  26       (os_hooks)->print_info((fmt), ##args);            \
  27     }                                                   \
  28   } while (0)                                           \
  29
  30
  31 #define PrintTrace(fmt, args...)                        \
  32   do {                                                  \
  33     extern struct vmm_os_hooks * os_hooks;              \
  34     if ((os_hooks) && (os_hooks)->print_trace) {        \
  35       (os_hooks)->print_trace((fmt), ##args);           \
  36     }                                                   \
  37   } while (0)                                           \
  38
  39
  40
  41
  42 // We need to check the hook structure at runtime to ensure its SAFE
  43 #define VMMMalloc(size)                                 \
  44   do {                                                  \
  45     extern struct vmm_os_hooks * os_hooks;              \
  46     if ((os_hooks) && (os_hooks)->malloc) {             \
  47       (os_hooks)->malloc(size);                         \
  48     }                                                   \
  49   } while (0)                                           \
  50
  51
  52 /* ** */
  53
  54
  55 #define VMM_INVALID_CPU 0
  56 #define VMM_VMX_CPU 1
  57 #define VMM_SVM_CPU 2
  58
  59
  60
  61 typedef struct guest_info {
  62   ullong_t rip;
  63   ullong_t rsp;
  64
  65   vmm_mem_map_t mem_map;
  66   // preallocation map
  67   // device_map
  68
  69   void * vmm_data;
  70 } guest_info_t;
  71
  72
  73
  74 /* We need a memory map and an IO device map */
  75
  76 /* This will contain function pointers that provide OS services */
  77 struct vmm_os_hooks {
  78   void (*print_info)(const char * format, ...);
  79   void (*print_debug)(const char * format, ...);
  80   void (*print_trace)(const char * format, ...);
  81
  82   void *(*Allocate_Pages)(int numPages);
  83   void (*Free_Page)(void * page);
  84
  85   void *(*malloc)(uint_t size);
  86   void (*free)(void * addr);
  87
  88
  89   void (*start_kernel_thread)(); // include pointer to function
  90 };
  91
  92
  93
  94
  95 /* This will contain Function pointers that control the VMs */
  96 struct vmm_ctrl_ops {
  97   int (*init_guest)(struct guest_info* info);
  98   int (*start_guest)(struct guest_info * info);
  99   //  int (*stop_vm)(uint_t vm_id);
 100 };
 101
 102
 103
 104
 105
 106
 107
 108 void Init_VMM(struct vmm_os_hooks * hooks, struct vmm_ctrl_ops * vmm_ops);
 109
 110
 111
 112
 113
 114 #endif