palacios/include/palacios/vmm.h

   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 #ifndef __VMM_H__
  21 #define __VMM_H__
  22
  23
  24 /*#include <palacios/vm_guest.h>*/
  25
  26 struct guest_info;
  27
  28
  29 #ifdef __V3VEE__
  30 #include <palacios/vmm_mem.h>
  31 #include <palacios/vmm_types.h>
  32
  33 //#include <palacios/vmm_types.h>
  34 #include <palacios/vmm_string.h>
  35
  36
  37
  38
  39 /* utility definitions */
  40
  41
  42 #define V3_Print(fmt, args...)                                  \
  43     do {                                                        \
  44         extern struct v3_os_hooks * os_hooks;                   \
  45         if ((os_hooks) && (os_hooks)->print) {                  \
  46             (os_hooks)->print((fmt), ##args);                   \
  47         }                                                       \
  48     } while (0)
  49
  50
  51 #define PrintDebug(fmt, args...)                        \
  52     do {                                                \
  53         extern struct v3_os_hooks * os_hooks;           \
  54         if ((os_hooks) && (os_hooks)->print) {  \
  55             (os_hooks)->print((fmt), ##args);   \
  56         }                                               \
  57     } while (0)
  58
  59
  60 #define PrintError(fmt, args...)                                        \
  61     do {                                                                \
  62         extern struct v3_os_hooks * os_hooks;                           \
  63         if ((os_hooks) && (os_hooks)->print) {                  \
  64             (os_hooks)->print("%s(%d): " fmt, __FILE__, __LINE__, ##args); \
  65         }                                                               \
  66     } while (0)
  67
  68
  69
  70 /* 4KB-aligned */
  71 #define V3_AllocPages(num_pages)                                        \
  72     ({                                                                  \
  73         extern struct v3_os_hooks * os_hooks;                           \
  74         void * ptr = 0;                                                 \
  75         if ((os_hooks) && (os_hooks)->allocate_pages) {                 \
  76             ptr = (os_hooks)->allocate_pages(num_pages,PAGE_SIZE_4KB);  \
  77         }                                                               \
  78         ptr;                                                            \
  79     })
  80
  81
  82 #define V3_AllocAlignedPages(num_pages, align)                          \
  83     ({                                                                  \
  84         extern struct v3_os_hooks * os_hooks;                           \
  85         void * ptr = 0;                                                 \
  86         if ((os_hooks) && (os_hooks)->allocate_pages) {                 \
  87             ptr = (os_hooks)->allocate_pages(num_pages,align);          \
  88         }                                                               \
  89         ptr;                                                            \
  90     })
  91
  92
  93 #define V3_FreePages(page, num_pages)                   \
  94     do {                                                \
  95         extern struct v3_os_hooks * os_hooks;           \
  96         if ((os_hooks) && (os_hooks)->free_pages) {     \
  97             (os_hooks)->free_pages(page, num_pages);    \
  98         }                                               \
  99     } while(0)
 100
 101
 102 #define V3_VAddr(addr) ({                                       \
 103             extern struct v3_os_hooks * os_hooks;               \
 104             void * var = 0;                                     \
 105             if ((os_hooks) && (os_hooks)->paddr_to_vaddr) {     \
 106                 var = (os_hooks)->paddr_to_vaddr(addr);         \
 107             }                                                   \
 108             var;                                                \
 109         })
 110
 111
 112 #define V3_PAddr(addr) ({                                       \
 113             extern struct v3_os_hooks * os_hooks;               \
 114             void * var = 0;                                     \
 115             if ((os_hooks) && (os_hooks)->vaddr_to_paddr) {     \
 116                 var = (os_hooks)->vaddr_to_paddr(addr);         \
 117             }                                                   \
 118             var;                                                \
 119         })
 120
 121
 122
 123 #define V3_Malloc(size) ({                              \
 124             extern struct v3_os_hooks * os_hooks;       \
 125             void * var = 0;                             \
 126             if ((os_hooks) && (os_hooks)->malloc) {     \
 127                 var = (os_hooks)->malloc(size);         \
 128             }                                           \
 129             if (!var) PrintError("MALLOC FAILURE. Memory LEAK!!\n");    \
 130             var;                                        \
 131         })
 132
 133 // We need to check the hook structure at runtime to ensure its SAFE
 134 #define V3_Free(addr)                           \
 135     do {                                        \
 136         extern struct v3_os_hooks * os_hooks;   \
 137         if ((os_hooks) && (os_hooks)->free) {   \
 138             (os_hooks)->free(addr);             \
 139         }                                       \
 140     } while (0)
 141
 142 // uint_t V3_CPU_KHZ();
 143 #define V3_CPU_KHZ() ({                                                 \
 144             unsigned int khz = 0;                                       \
 145             extern struct v3_os_hooks * os_hooks;                       \
 146             if ((os_hooks) && (os_hooks)->get_cpu_khz) {                \
 147                 khz = (os_hooks)->get_cpu_khz();                        \
 148             }                                                           \
 149             khz;                                                        \
 150         })                                                              \
 151
 152
 153
 154
 155 #define V3_Hook_Interrupt(vm, irq) ({                                   \
 156             int ret = 0;                                                \
 157             extern struct v3_os_hooks * os_hooks;                       \
 158             if ((os_hooks) && (os_hooks)->hook_interrupt) {             \
 159                 ret = (os_hooks)->hook_interrupt(vm, irq);              \
 160             }                                                           \
 161             ret;                                                        \
 162         })                                                              \
 163
 164
 165 #define V3_ACK_IRQ(irq)                                         \
 166     do {                                                        \
 167         extern struct v3_os_hooks * os_hooks;                   \
 168         if ((os_hooks) && (os_hooks)->ack_irq) {                \
 169             (os_hooks)->ack_irq(irq);                           \
 170         }                                                       \
 171     } while (0)
 172
 173
 174
 175 #define V3_Get_CPU() ({                                                 \
 176             int ret = 0;                                                \
 177             extern struct v3_os_hooks * os_hooks;                       \
 178             if ((os_hooks) && (os_hooks)->get_cpu) {                    \
 179                 ret = (os_hooks)->get_cpu();                            \
 180             }                                                           \
 181             ret;                                                        \
 182         })
 183
 184
 185 #ifdef CONFIG_MULTITHREAD_OS
 186
 187 #define V3_CREATE_THREAD(fn, arg, name)                                 \
 188     do {                                                                \
 189         extern struct v3_os_hooks * os_hooks;                           \
 190         if ((os_hooks) && (os_hooks)->start_kernel_thread) {            \
 191             (os_hooks)->start_kernel_thread(fn, arg, name);             \
 192         }                                                               \
 193     }
 194
 195
 196
 197
 198 #define V3_Call_On_CPU(cpu, fn, arg)                    \
 199     do {                                                \
 200         extern struct v3_os_hooks * os_hooks;           \
 201         if ((os_hooks) && (os_hooks)->call_on_cpu) {    \
 202             (os_hooks)->call_on_cpu(cpu, fn, arg);      \
 203         }                                               \
 204     } while (0)
 205
 206
 207
 208 #define V3_CREATE_THREAD_ON_CPU(cpu, fn, arg, name) ({                  \
 209             void * thread = NULL;                                       \
 210             extern struct v3_os_hooks * os_hooks;                       \
 211             if ((os_hooks) && (os_hooks)->start_thread_on_cpu) {        \
 212                 thread = (os_hooks)->start_thread_on_cpu(cpu, fn, arg, name); \
 213             }                                                           \
 214             thread;                                                     \
 215         })
 216
 217 #endif
 218
 219 /* ** */
 220
 221
 222 #define V3_ASSERT(x)                                                    \
 223     do {                                                                \
 224         extern struct v3_os_hooks * os_hooks;                           \
 225         if (!(x)) {                                                     \
 226             PrintDebug("Failed assertion in %s: %s at %s, line %d, RA=%lx\n", \
 227                        __func__, #x, __FILE__, __LINE__,                \
 228                        (ulong_t) __builtin_return_address(0));          \
 229             while(1){                                                   \
 230                 if ((os_hooks) && (os_hooks)->yield_cpu) {              \
 231                         (os_hooks)->yield_cpu();                        \
 232                 }                                                       \
 233             }                                                           \
 234         }                                                               \
 235     } while(0)                                                          \
 236
 237
 238
 239
 240
 241 typedef enum v3_vm_class {V3_INVALID_VM, V3_PC_VM, V3_CRAY_VM} v3_vm_class_t;
 242
 243
 244 // Maybe make this a define....
 245 typedef enum v3_cpu_arch {V3_INVALID_CPU, V3_SVM_CPU, V3_SVM_REV3_CPU, V3_VMX_CPU, V3_VMX_EPT_CPU, V3_VMX_EPT_UG_CPU} v3_cpu_arch_t;
 246
 247
 248 v3_cpu_mode_t v3_get_host_cpu_mode();
 249
 250 void v3_yield(struct guest_info * info);
 251 void v3_yield_cond(struct guest_info * info);
 252 void v3_print_cond(const char * fmt, ...);
 253
 254
 255 #ifdef CONFIG_MULTITHREAD_OS
 256 void v3_interrupt_cpu(struct v3_vm_info * vm, int logical_cpu, int vector);
 257 #endif
 258
 259
 260 v3_cpu_arch_t v3_get_cpu_type(int cpu_id);
 261
 262
 263 int v3_vm_enter(struct guest_info * info);
 264
 265
 266 #endif /*!__V3VEE__ */
 267
 268
 269
 270 struct v3_vm_info;
 271
 272 /* This will contain function pointers that provide OS services */
 273 struct v3_os_hooks {
 274     void (*print)(const char * format, ...)
 275         __attribute__ ((format (printf, 1, 2)));
 276
 277     void *(*allocate_pages)(int num_pages, unsigned int alignment);
 278     void (*free_pages)(void * page, int num_pages);
 279
 280     void *(*malloc)(unsigned int size);
 281     void (*free)(void * addr);
 282
 283     void *(*paddr_to_vaddr)(void * addr);
 284     void *(*vaddr_to_paddr)(void * addr);
 285
 286     int (*hook_interrupt)(struct v3_vm_info * vm, unsigned int irq);
 287     int (*ack_irq)(int irq);
 288
 289     unsigned int (*get_cpu_khz)(void);
 290
 291
 292     void (*yield_cpu)(void);
 293
 294     void *(*mutex_alloc)(void);
 295     void (*mutex_free)(void * mutex);
 296     void (*mutex_lock)(void * mutex, int must_spin);
 297     void (*mutex_unlock)(void * mutex);
 298
 299     unsigned int (*get_cpu)(void);
 300
 301
 302
 303     void (*start_kernel_thread)(int (*fn)(void * arg), void * arg, char * thread_name);
 304     void (*interrupt_cpu)(struct v3_vm_info * vm, int logical_cpu, int vector);
 305     void (*call_on_cpu)(int logical_cpu, void (*fn)(void * arg), void * arg);
 306     void * (*start_thread_on_cpu)(int cpu_id, int (*fn)(void * arg), void * arg, char * thread_name);
 307
 308 };
 309
 310
 311 /*
 312  *
 313  * This is the interrupt state that the VMM's interrupt handlers need to see
 314  */
 315 struct v3_interrupt {
 316     unsigned int irq;
 317     unsigned int error;
 318
 319     unsigned int should_ack;  /* Should the vmm ack this interrupt, or will
 320                                * the host OS do it? */
 321 };
 322
 323
 324
 325
 326 void Init_V3(struct v3_os_hooks * hooks,  int num_cpus);
 327 void Shutdown_V3( void );
 328
 329
 330 struct v3_vm_info * v3_create_vm(void * cfg, void * priv_data, char * name);
 331 int v3_start_vm(struct v3_vm_info * vm, unsigned int cpu_mask);
 332 int v3_stop_vm(struct v3_vm_info * vm);
 333 int v3_free_vm(struct v3_vm_info * vm);
 334
 335 int v3_deliver_irq(struct v3_vm_info * vm, struct v3_interrupt * intr);
 336
 337
 338 #endif