palacios/include/palacios/vmm.h

   1 #ifndef __VMM_H
   2 #define __VMM_H
   3
   4
   5 #include <palacios/vm_guest.h>
   6 #include <palacios/vmm_mem.h>
   7
   8 #ifdef __V3VEE__
   9
  10 //#include <palacios/vmm_types.h>
  11 #include <palacios/vmm_string.h>
  12
  13
  14 //#include <palacios/vmm_paging.h>
  15
  16 /* utility definitions */
  17
  18 #if VMM_DEBUG
  19 #define PrintDebug(fmt, args...)                        \
  20   do {                                                  \
  21     extern struct vmm_os_hooks * os_hooks;              \
  22     if ((os_hooks) && (os_hooks)->print_debug) {        \
  23       (os_hooks)->print_debug((fmt), ##args);           \
  24     }                                                   \
  25   } while (0)
  26 #else
  27 #define PrintDebug(fmt,args ...)
  28 #endif
  29
  30
  31
  32 #define PrintError(fmt, args...)                        \
  33   do {                                                  \
  34     extern struct vmm_os_hooks * os_hooks;              \
  35     if ((os_hooks) && (os_hooks)->print_debug) {        \
  36       (os_hooks)->print_debug((fmt), ##args);           \
  37     }                                                   \
  38   } while (0)
  39
  40
  41
  42 #if VMM_INFO
  43 #define PrintInfo(fmt, args...)                         \
  44   do {                                                  \
  45     extern struct vmm_os_hooks * os_hooks;              \
  46     if ((os_hooks) && (os_hooks)->print_info) {         \
  47       (os_hooks)->print_info((fmt), ##args);            \
  48     }                                                   \
  49   } while (0)
  50 #else
  51 #define PrintInfo(fmt, args...)
  52 #endif
  53
  54
  55 #if VMM_TRACE
  56 #define PrintTrace(fmt, args...)                        \
  57   do {                                                  \
  58     extern struct vmm_os_hooks * os_hooks;              \
  59     if ((os_hooks) && (os_hooks)->print_trace) {        \
  60       (os_hooks)->print_trace((fmt), ##args);           \
  61     }                                                   \
  62   } while (0)
  63 #else
  64 #define PrintTrace(fmt, args...)
  65 #endif
  66
  67
  68 #define V3_AllocPages(ptr, num_pages)                   \
  69   do {                                                  \
  70     extern struct vmm_os_hooks * os_hooks;              \
  71     ptr = 0;                                            \
  72     if ((os_hooks) && (os_hooks)->allocate_pages) {     \
  73       ptr = (os_hooks)->allocate_pages(num_pages);      \
  74     }                                                   \
  75   } while (0)                                           \
  76
  77
  78 #define V3_FreePage(page)                       \
  79   do {                                          \
  80     extern struct vmm_os_hooks * os_hooks;      \
  81     if ((os_hooks) && (os_hooks)->free_page) {  \
  82       (os_hooks)->free_page(page);              \
  83     }                                           \
  84   } while(0)                                    \
  85
  86
  87
  88
  89 #define V3_Malloc(size) ({                      \
  90       extern struct vmm_os_hooks * os_hooks;    \
  91       void * var = 0;                           \
  92       if ((os_hooks) && (os_hooks)->malloc) {   \
  93         var = (os_hooks)->malloc(size);         \
  94       }                                         \
  95       var;                                      \
  96     })
  97
  98 // We need to check the hook structure at runtime to ensure its SAFE
  99 #define V3_Free(addr)                                   \
 100   do {                                                  \
 101     extern struct vmm_os_hooks * os_hooks;              \
 102     if ((os_hooks) && (os_hooks)->free) {               \
 103       (os_hooks)->free(addr);                           \
 104     }                                                   \
 105   } while (0)                                           \
 106
 107
 108 // uint_t V3_CPU_KHZ();
 109 #define V3_CPU_KHZ()                                    \
 110   ({                                                    \
 111     unsigned int khz = 0;                               \
 112     extern struct vmm_os_hooks * os_hooks;              \
 113     if ((os_hooks) && (os_hooks)->get_cpu_khz) {        \
 114       khz = (os_hooks)->get_cpu_khz();                  \
 115     }                                                   \
 116     khz;                                                \
 117   })                                                    \
 118
 119
 120
 121 #define V3_Hook_Interrupt(irq, opaque)                          \
 122   ({                                                            \
 123     int ret = 0;                                                        \
 124     extern struct vmm_os_hooks * os_hooks;                      \
 125     if ((os_hooks) && (os_hooks)->hook_interrupt) {             \
 126       ret = (os_hooks)->hook_interrupt(irq, opaque);            \
 127     }                                                           \
 128     ret;                                                        \
 129   })                                                            \
 130
 131
 132 /* ** */
 133
 134 #define V3_ASSERT(x)                                                    \
 135   do {                                                                  \
 136     if (!(x)) {                                                         \
 137       PrintDebug("Failed assertion in %s: %s at %s, line %d, RA=%lx\n", \
 138                  __func__, #x, __FILE__, __LINE__,                      \
 139                  (ulong_t) __builtin_return_address(0));                \
 140       while(1);                                                         \
 141     }                                                                   \
 142   } while(0)                                                            \
 143
 144
 145
 146
 147 #define VMM_INVALID_CPU 0
 148 #define VMM_VMX_CPU 1
 149 #define VMM_SVM_CPU 2
 150
 151 #endif //!__V3VEE__
 152
 153
 154 //
 155 //
 156 // This is the interrupt state that the VMM's interrupt handlers need to see
 157 //
 158 struct vmm_intr_state {
 159   uint_t irq;
 160   uint_t error;
 161
 162   uint_t should_ack;  // Should the vmm ack this interrupt, or will
 163                       // the host OS do it?
 164
 165   // This is the value given when the interrupt is hooked.
 166   // This will never be NULL
 167   void *opaque;
 168 };
 169
 170 void deliver_interrupt_to_vmm(struct vmm_intr_state *state);
 171
 172
 173 /* This will contain function pointers that provide OS services */
 174 struct vmm_os_hooks {
 175   void (*print_info)(const char * format, ...);
 176   void (*print_debug)(const char * format, ...);
 177   void (*print_trace)(const char * format, ...);
 178
 179   void *(*allocate_pages)(int numPages);
 180   void (*free_page)(void * page);
 181
 182   void *(*malloc)(unsigned int size);
 183   void (*free)(void * addr);
 184
 185   void *(*paddr_to_vaddr)(void *addr);
 186   void *(*vaddr_to_paddr)(void *addr);
 187
 188   //  int (*hook_interrupt)(struct guest_info *s, int irq);
 189
 190   int (*hook_interrupt)(uint_t irq, void *opaque);
 191
 192   int (*ack_irq)(int irq);
 193
 194
 195   unsigned int (*get_cpu_khz)();
 196
 197
 198   void (*start_kernel_thread)(); // include pointer to function
 199 };
 200
 201
 202
 203 /* This will contain Function pointers that control the VMs */
 204 struct vmm_ctrl_ops {
 205   int (*init_guest)(struct guest_info* info);
 206   int (*start_guest)(struct guest_info * info);
 207   //  int (*stop_vm)(uint_t vm_id);
 208
 209   int (*has_nested_paging)();
 210 };
 211
 212
 213
 214
 215 void Init_V3(struct vmm_os_hooks * hooks, struct vmm_ctrl_ops * vmm_ops);
 216
 217
 218
 219
 220
 221 #endif