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 //#include <palacios/vmm_paging.h>
  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 #define V3_AllocPages(num_pages)                                \
  71     ({                                                          \
  72         extern struct v3_os_hooks * os_hooks;                   \
  73         void * ptr = 0;                                         \
  74         if ((os_hooks) && (os_hooks)->allocate_pages) {         \
  75             ptr = (os_hooks)->allocate_pages(num_pages);        \
  76         }                                                       \
  77         ptr;                                                    \
  78     })
  79
  80
  81 #define V3_FreePage(page)                               \
  82     do {                                                \
  83         extern struct v3_os_hooks * os_hooks;           \
  84         if ((os_hooks) && (os_hooks)->free_page) {      \
  85             (os_hooks)->free_page(page);                \
  86         }                                               \
  87     } while(0)
  88
  89
  90 #define V3_VAddr(addr) ({                                       \
  91             extern struct v3_os_hooks * os_hooks;               \
  92             void * var = 0;                                     \
  93             if ((os_hooks) && (os_hooks)->paddr_to_vaddr) {     \
  94                 var = (os_hooks)->paddr_to_vaddr(addr);         \
  95             }                                                   \
  96             var;                                                \
  97         })
  98
  99
 100 #define V3_PAddr(addr) ({                                       \
 101             extern struct v3_os_hooks * os_hooks;               \
 102             void * var = 0;                                     \
 103             if ((os_hooks) && (os_hooks)->vaddr_to_paddr) {     \
 104                 var = (os_hooks)->vaddr_to_paddr(addr);         \
 105             }                                                   \
 106             var;                                                \
 107         })
 108
 109
 110
 111 #define V3_Malloc(size) ({                              \
 112             extern struct v3_os_hooks * os_hooks;       \
 113             void * var = 0;                             \
 114             if ((os_hooks) && (os_hooks)->malloc) {     \
 115                 var = (os_hooks)->malloc(size);         \
 116             }                                           \
 117             var;                                        \
 118         })
 119
 120 // We need to check the hook structure at runtime to ensure its SAFE
 121 #define V3_Free(addr)                           \
 122     do {                                        \
 123         extern struct v3_os_hooks * os_hooks;   \
 124         if ((os_hooks) && (os_hooks)->free) {   \
 125             (os_hooks)->free(addr);             \
 126         }                                       \
 127     } while (0)
 128
 129 // uint_t V3_CPU_KHZ();
 130 #define V3_CPU_KHZ() ({                                                 \
 131             unsigned int khz = 0;                                       \
 132             extern struct v3_os_hooks * os_hooks;                       \
 133             if ((os_hooks) && (os_hooks)->get_cpu_khz) {                \
 134                 khz = (os_hooks)->get_cpu_khz();                        \
 135             }                                                           \
 136             khz;                                                        \
 137         })                                                              \
 138
 139
 140
 141 #define V3_CREATE_THREAD(fn, arg, name)                         \
 142     do {                                                        \
 143         extern struct v3_os_hooks * os_hooks;                   \
 144         if ((os_hooks) && (os_hooks)->start_kernel_thread) {    \
 145             (os_hooks)->start_kernel_thread(fn, arg, name);     \
 146         }                                                       \
 147     } while (0)
 148
 149
 150 #define V3_Hook_Interrupt(irq, opaque) ({                               \
 151             int ret = 0;                                                \
 152             extern struct v3_os_hooks * os_hooks;                       \
 153             if ((os_hooks) && (os_hooks)->hook_interrupt) {             \
 154                 ret = (os_hooks)->hook_interrupt(irq, opaque);          \
 155             }                                                           \
 156             ret;                                                        \
 157         })                                                              \
 158
 159
 160 #define V3_ACK_IRQ(irq)                                         \
 161     do {                                                        \
 162         extern struct v3_os_hooks * os_hooks;                   \
 163         if ((os_hooks) && (os_hooks)->ack_irq) {                \
 164             (os_hooks)->ack_irq(irq);                           \
 165         }                                                       \
 166     } while (0)
 167
 168
 169
 170
 171
 172 /* ** */
 173
 174 #define V3_ASSERT(x)                                                    \
 175     do {                                                                \
 176         if (!(x)) {                                                     \
 177             PrintDebug("Failed assertion in %s: %s at %s, line %d, RA=%lx\n", \
 178                        __func__, #x, __FILE__, __LINE__,                \
 179                        (ulong_t) __builtin_return_address(0));          \
 180             while(1);                                                   \
 181         }                                                               \
 182     } while(0)                                                          \
 183
 184
 185
 186
 187
 188 typedef enum v3_vm_class {V3_INVALID_VM, V3_PC_VM, V3_CRAY_VM} v3_vm_class_t;
 189
 190
 191 // Maybe make this a define....
 192 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;
 193
 194
 195 v3_cpu_mode_t v3_get_host_cpu_mode();
 196
 197 void v3_yield(struct guest_info * info);
 198 void v3_yield_cond(struct guest_info * info);
 199
 200
 201 void v3_interrupt_cpu(struct guest_info * vm, int logical_cpu);
 202
 203 unsigned int v3_get_cpu_id();
 204
 205 v3_cpu_arch_t v3_get_cpu_type(int cpu_id);
 206
 207
 208 int v3_vm_enter(struct guest_info * info);
 209
 210
 211 #endif //!__V3VEE__
 212
 213
 214
 215 struct guest_info;
 216
 217 /* This will contain function pointers that provide OS services */
 218 struct v3_os_hooks {
 219     void (*print)(const char * format, ...)
 220         __attribute__ ((format (printf, 1, 2)));
 221
 222     void *(*allocate_pages)(int numPages);
 223     void (*free_page)(void * page);
 224
 225     void *(*malloc)(unsigned int size);
 226     void (*free)(void * addr);
 227
 228     void *(*paddr_to_vaddr)(void *addr);
 229     void *(*vaddr_to_paddr)(void *addr);
 230
 231     int (*hook_interrupt)(struct guest_info * vm, unsigned int irq);
 232
 233     int (*ack_irq)(int irq);
 234
 235     unsigned int (*get_cpu_khz)(void);
 236
 237     void (*start_kernel_thread)(int (*fn)(void * arg), void * arg, char * thread_name);
 238
 239     void (*yield_cpu)(void);
 240
 241     void *(*mutex_alloc)(void);
 242     void (*mutex_free)(void * mutex);
 243     void (*mutex_lock)(void * mutex, int must_spin);
 244     void (*mutex_unlock)(void * mutex);
 245
 246     unsigned int (*get_cpu)(void);
 247     void (*interrupt_cpu)(struct guest_info * vm, int logical_cpu);
 248     void (*call_on_cpu)(int logical_cpu, void (*fn)(void * arg), void * arg);
 249     void (*start_thread_on_cpu)(int logical_cpu, int (*fn)(void * arg), void * arg, char * thread_name);
 250 };
 251
 252
 253
 254
 255
 256
 257
 258 //
 259 //
 260 // This is the interrupt state that the VMM's interrupt handlers need to see
 261 //
 262 struct v3_interrupt {
 263     unsigned int irq;
 264     unsigned int error;
 265
 266     unsigned int should_ack;  // Should the vmm ack this interrupt, or will
 267     // the host OS do it?
 268 };
 269
 270
 271
 272
 273 void Init_V3(struct v3_os_hooks * hooks,  int num_cpus);
 274
 275
 276 int v3_start_vm(struct guest_info * info, unsigned int cpu_mask);
 277 struct guest_info * v3_create_vm(void * cfg);
 278
 279 int v3_deliver_irq(struct guest_info * vm, struct v3_interrupt * intr);
 280
 281
 282
 283 #endif