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 #include <palacios/vmm_mem.h>
  26 #include <palacios/vmm_types.h>
  27
  28 struct guest_info;
  29
  30
  31 #ifdef __V3VEE__
  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     } while (0)
 194
 195
 196 #define V3_Call_On_CPU(cpu, fn, arg)                    \
 197     do {                                                \
 198         extern struct v3_os_hooks * os_hooks;           \
 199         if ((os_hooks) && (os_hooks)->call_on_cpu) {    \
 200             (os_hooks)->call_on_cpu(cpu, fn, arg);      \
 201         }                                               \
 202     } while (0)
 203
 204
 205
 206 #define V3_CREATE_THREAD_ON_CPU(cpu, fn, arg, name) ({                  \
 207             void * thread = NULL;                                       \
 208             extern struct v3_os_hooks * os_hooks;                       \
 209             if ((os_hooks) && (os_hooks)->start_thread_on_cpu) {        \
 210                 thread = (os_hooks)->start_thread_on_cpu(cpu, fn, arg, name); \
 211             }                                                           \
 212             thread;                                                     \
 213         })
 214
 215 #endif
 216
 217 /* ** */
 218
 219
 220 #define V3_ASSERT(x)                                                    \
 221     do {                                                                \
 222         extern struct v3_os_hooks * os_hooks;                           \
 223         if (!(x)) {                                                     \
 224             PrintDebug("Failed assertion in %s: %s at %s, line %d, RA=%lx\n", \
 225                        __func__, #x, __FILE__, __LINE__,                \
 226                        (ulong_t) __builtin_return_address(0));          \
 227             while(1){                                                   \
 228                 if ((os_hooks) && (os_hooks)->yield_cpu) {              \
 229                         (os_hooks)->yield_cpu();                        \
 230                 }                                                       \
 231             }                                                           \
 232         }                                                               \
 233     } while(0)                                                          \
 234
 235
 236
 237
 238
 239 typedef enum v3_vm_class {V3_INVALID_VM, V3_PC_VM, V3_CRAY_VM} v3_vm_class_t;
 240
 241
 242 // Maybe make this a define....
 243 typedef enum v3_cpu_arch {V3_INVALID_CPU, V3_SVM_CPU, V3_SVM_REV3_CPU, V3_VMX_CPU, V3_VMX_EPT_CPU} v3_cpu_arch_t;
 244
 245
 246 v3_cpu_mode_t v3_get_host_cpu_mode();
 247
 248 void v3_yield(struct guest_info * info);
 249 void v3_yield_cond(struct guest_info * info);
 250 void v3_print_cond(const char * fmt, ...);
 251
 252
 253 void v3_interrupt_cpu(struct v3_vm_info * vm, int logical_cpu, int vector);
 254
 255
 256 v3_cpu_arch_t v3_get_cpu_type(int cpu_id);
 257
 258
 259 int v3_vm_enter(struct guest_info * info);
 260
 261
 262 #endif /*!__V3VEE__ */
 263
 264
 265
 266 struct v3_vm_info;
 267
 268 /* This will contain function pointers that provide OS services */
 269 struct v3_os_hooks {
 270     void (*print)(const char * format, ...)
 271         __attribute__ ((format (printf, 1, 2)));
 272
 273     void *(*allocate_pages)(int num_pages, unsigned int alignment);
 274     void (*free_pages)(void * page, int num_pages);
 275
 276     void *(*malloc)(unsigned int size);
 277     void (*free)(void * addr);
 278
 279     void *(*paddr_to_vaddr)(void * addr);
 280     void *(*vaddr_to_paddr)(void * addr);
 281
 282     int (*hook_interrupt)(struct v3_vm_info * vm, unsigned int irq);
 283     int (*ack_irq)(int irq);
 284
 285     unsigned int (*get_cpu_khz)(void);
 286
 287
 288     void (*yield_cpu)(void);
 289
 290     void *(*mutex_alloc)(void);
 291     void (*mutex_free)(void * mutex);
 292     void (*mutex_lock)(void * mutex, int must_spin);
 293     void (*mutex_unlock)(void * mutex);
 294
 295     unsigned int (*get_cpu)(void);
 296
 297
 298
 299     void (*start_kernel_thread)(int (*fn)(void * arg), void * arg, char * thread_name);
 300     void (*interrupt_cpu)(struct v3_vm_info * vm, int logical_cpu, int vector);
 301     void (*call_on_cpu)(int logical_cpu, void (*fn)(void * arg), void * arg);
 302     void * (*start_thread_on_cpu)(int cpu_id, int (*fn)(void * arg), void * arg, char * thread_name);
 303
 304 };
 305
 306
 307 /*
 308  *
 309  * This is the interrupt state that the VMM's interrupt handlers need to see
 310  */
 311 struct v3_interrupt {
 312     unsigned int irq;
 313     unsigned int error;
 314
 315     unsigned int should_ack;  /* Should the vmm ack this interrupt, or will
 316                                * the host OS do it? */
 317 };
 318
 319
 320
 321
 322 void Init_V3(struct v3_os_hooks * hooks,  int num_cpus);
 323 void Deinit_V3();
 324
 325
 326 struct v3_vm_info * v3_create_vm(void * cfg, void * priv_data, char * name);
 327 int v3_start_vm(struct v3_vm_info * vm, unsigned int cpu_mask);
 328 int v3_stop_vm(struct v3_vm_info * vm);
 329 int v3_free_vm(struct v3_vm_info * vm);
 330
 331 int v3_deliver_irq(struct v3_vm_info * vm, struct v3_interrupt * intr);
 332
 333
 334 #endif