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
  29
  30 #ifdef __V3VEE__
  31
  32 //#include <palacios/vmm_types.h>
  33 #include <palacios/vmm_string.h>
  34
  35
  36 //#include <palacios/vmm_paging.h>
  37
  38 /* utility definitions */
  39
  40
  41 #define PrintDebug(fmt, args...)                        \
  42     do {                                                \
  43         extern struct v3_os_hooks * os_hooks;           \
  44         if ((os_hooks) && (os_hooks)->print_debug) {    \
  45             (os_hooks)->print_debug((fmt), ##args);     \
  46         }                                               \
  47     } while (0)
  48
  49 #if 1
  50 #else
  51 #define PrintDebug(fmt,args ...)
  52 #endif
  53
  54
  55
  56 #define PrintError(fmt, args...)                                        \
  57     do {                                                                \
  58         extern struct v3_os_hooks * os_hooks;                           \
  59         if ((os_hooks) && (os_hooks)->print_debug) {                    \
  60             (os_hooks)->print_debug("%s(%d): " fmt, __FILE__, __LINE__, ##args); \
  61         }                                                               \
  62     } while (0)
  63
  64
  65
  66 #ifdef VMM_INFO
  67 #define PrintInfo(fmt, args...)                         \
  68     do {                                                \
  69         extern struct v3_os_hooks * os_hooks;           \
  70         if ((os_hooks) && (os_hooks)->print_info) {     \
  71             (os_hooks)->print_info((fmt), ##args);      \
  72         }                                               \
  73     } while (0)
  74 #else
  75 #define PrintInfo(fmt, args...)
  76 #endif
  77
  78
  79 #ifdef VMM_TRACE
  80 #define PrintTrace(fmt, args...)                        \
  81     do {                                                \
  82         extern struct v3_os_hooks * os_hooks;           \
  83         if ((os_hooks) && (os_hooks)->print_trace) {    \
  84             (os_hooks)->print_trace(fmt, ##args);       \
  85         }                                               \
  86     } while (0)
  87 #else
  88 #define PrintTrace(fmt, args...)
  89 #endif
  90
  91
  92 #define V3_AllocPages(num_pages)                                \
  93     ({                                                          \
  94         extern struct v3_os_hooks * os_hooks;                   \
  95         void * ptr = 0;                                         \
  96         if ((os_hooks) && (os_hooks)->allocate_pages) {         \
  97             ptr = (os_hooks)->allocate_pages(num_pages);        \
  98         }                                                       \
  99         ptr;                                                    \
 100     })
 101
 102
 103 #define V3_FreePage(page)                               \
 104     do {                                                \
 105         extern struct v3_os_hooks * os_hooks;           \
 106         if ((os_hooks) && (os_hooks)->free_page) {      \
 107             (os_hooks)->free_page(page);                \
 108         }                                               \
 109     } while(0)
 110
 111
 112 #define V3_VAddr(addr) ({                                       \
 113             extern struct v3_os_hooks * os_hooks;               \
 114             void * var = 0;                                     \
 115             if ((os_hooks) && (os_hooks)->paddr_to_vaddr) {     \
 116                 var = (os_hooks)->paddr_to_vaddr(addr);         \
 117             }                                                   \
 118             var;                                                \
 119         })
 120
 121
 122 #define V3_PAddr(addr) ({                                       \
 123             extern struct v3_os_hooks * os_hooks;               \
 124             void * var = 0;                                     \
 125             if ((os_hooks) && (os_hooks)->vaddr_to_paddr) {     \
 126                 var = (os_hooks)->vaddr_to_paddr(addr);         \
 127             }                                                   \
 128             var;                                                \
 129         })
 130
 131
 132
 133 #define V3_Malloc(size) ({                              \
 134             extern struct v3_os_hooks * os_hooks;       \
 135             void * var = 0;                             \
 136             if ((os_hooks) && (os_hooks)->malloc) {     \
 137                 var = (os_hooks)->malloc(size);         \
 138             }                                           \
 139             var;                                        \
 140         })
 141
 142 // We need to check the hook structure at runtime to ensure its SAFE
 143 #define V3_Free(addr)                           \
 144     do {                                        \
 145         extern struct v3_os_hooks * os_hooks;   \
 146         if ((os_hooks) && (os_hooks)->free) {   \
 147             (os_hooks)->free(addr);             \
 148         }                                       \
 149     } while (0)
 150
 151 // uint_t V3_CPU_KHZ();
 152 #define V3_CPU_KHZ() ({                                                 \
 153             unsigned int khz = 0;                                       \
 154             extern struct v3_os_hooks * os_hooks;                       \
 155             if ((os_hooks) && (os_hooks)->get_cpu_khz) {                \
 156                 khz = (os_hooks)->get_cpu_khz();                        \
 157             }                                                           \
 158             khz;                                                        \
 159         })                                                              \
 160
 161
 162
 163 #define V3_CREATE_THREAD(fn, arg, name)                         \
 164     do {                                                        \
 165         extern struct v3_os_hooks * os_hooks;                   \
 166         if ((os_hooks) && (os_hooks)->start_kernel_thread) {    \
 167             (os_hooks)->start_kernel_thread(fn, arg, name);     \
 168         }                                                       \
 169     } while (0)
 170
 171
 172 #define V3_Hook_Interrupt(irq, opaque) ({                               \
 173             int ret = 0;                                                \
 174             extern struct v3_os_hooks * os_hooks;                       \
 175             if ((os_hooks) && (os_hooks)->hook_interrupt) {             \
 176                 ret = (os_hooks)->hook_interrupt(irq, opaque);          \
 177             }                                                           \
 178             ret;                                                        \
 179         })                                                              \
 180
 181 #define V3_Yield(addr)                                  \
 182     do {                                                \
 183         extern struct v3_os_hooks * os_hooks;           \
 184         if ((os_hooks) && (os_hooks)->yield_cpu) {      \
 185             (os_hooks)->yield_cpu();                    \
 186         }                                               \
 187     } while (0)                                         \
 188                                                         \
 189                                                         \
 190                                                         \
 191                                                         \
 192                                                         \
 193 /* ** */
 194
 195 #define V3_ASSERT(x)                                                    \
 196     do {                                                                \
 197         if (!(x)) {                                                     \
 198             PrintDebug("Failed assertion in %s: %s at %s, line %d, RA=%lx\n", \
 199                        __func__, #x, __FILE__, __LINE__,                \
 200                        (ulong_t) __builtin_return_address(0));          \
 201             while(1);                                                   \
 202         }                                                               \
 203     } while(0)                                                          \
 204
 205
 206
 207
 208 #define VMM_INVALID_CPU 0
 209 #define VMM_VMX_CPU 1
 210 #define VMM_SVM_CPU 2
 211
 212
 213 // Maybe make this a define....
 214 typedef enum v3_cpu_arch {V3_INVALID_CPU, V3_SVM_CPU, V3_SVM_REV3_CPU, V3_VMX_CPU} v3_cpu_arch_t;
 215
 216
 217 #endif //!__V3VEE__
 218
 219
 220
 221 struct guest_info;
 222
 223 /* This will contain function pointers that provide OS services */
 224 struct v3_os_hooks {
 225     void (*print_info)(const char * format, ...)
 226         __attribute__ ((format (printf, 1, 2)));
 227     void (*print_debug)(const char * format, ...)
 228         __attribute__ ((format (printf, 1, 2)));
 229     void (*print_trace)(const char * format, ...)
 230         __attribute__ ((format (printf, 1, 2)));
 231
 232     void *(*allocate_pages)(int numPages);
 233     void (*free_page)(void * page);
 234
 235     void *(*malloc)(unsigned int size);
 236     void (*free)(void * addr);
 237
 238     void *(*paddr_to_vaddr)(void *addr);
 239     void *(*vaddr_to_paddr)(void *addr);
 240
 241     int (*hook_interrupt)(struct guest_info * vm, unsigned int irq);
 242
 243     int (*ack_irq)(int irq);
 244
 245     unsigned int (*get_cpu_khz)(void);
 246
 247     void (*start_kernel_thread)(int (*fn)(void * arg), void * arg, char * thread_name);
 248
 249     void (*yield_cpu)(void);
 250 };
 251
 252
 253 struct v3_vm_config {
 254     void * rombios;
 255     int rombios_size;
 256
 257     void * vgabios;
 258     int vgabios_size;
 259
 260     unsigned long mem_size; // in bytes, var should be natural size of cpu
 261     // so we can specify maximum physical address size
 262     // (We're screwed if we want to do 32 bit host/64 bit guest)
 263
 264
 265     int enable_profiling;
 266
 267     int use_ramdisk;
 268     void * ramdisk;
 269     int ramdisk_size;
 270 };
 271
 272
 273
 274 /* This will contain Function pointers that control the VMs */
 275 struct v3_ctrl_ops {
 276     struct guest_info *(*allocate_guest)(void);
 277
 278     int (*config_guest)(struct guest_info * info, struct v3_vm_config * config_ptr);
 279     int (*init_guest)(struct guest_info * info);
 280     int (*start_guest)(struct guest_info * info);
 281     //  int (*stop_vm)(uint_t vm_id);
 282
 283     int (*has_nested_paging)(void);
 284
 285     //  v3_cpu_arch_t (*get_cpu_arch)();
 286 };
 287
 288
 289
 290
 291 //
 292 //
 293 // This is the interrupt state that the VMM's interrupt handlers need to see
 294 //
 295 struct v3_interrupt {
 296     unsigned int irq;
 297     unsigned int error;
 298
 299     unsigned int should_ack;  // Should the vmm ack this interrupt, or will
 300     // the host OS do it?
 301 };
 302
 303
 304
 305
 306 void Init_V3(struct v3_os_hooks * hooks, struct v3_ctrl_ops * vmm_ops);
 307
 308 int v3_deliver_irq(struct guest_info * vm, struct v3_interrupt * intr);
 309 int v3_deliver_keyboard_evt(struct guest_info * vm);
 310
 311
 312 #endif