target/ppc/kvm_ppc.h

   1 /*
   2  * Copyright 2008 IBM Corporation.
   3  * Authors: Hollis Blanchard <hollisb@us.ibm.com>
   4  *
   5  * This work is licensed under the GNU GPL license version 2 or later.
   6  *
   7  */
   8
   9 #ifndef KVM_PPC_H
  10 #define KVM_PPC_H
  11
  12 #define TYPE_HOST_POWERPC_CPU POWERPC_CPU_TYPE_NAME("host")
  13
  14 #ifdef CONFIG_KVM
  15
  16 uint32_t kvmppc_get_tbfreq(void);
  17 uint64_t kvmppc_get_clockfreq(void);
  18 bool kvmppc_get_host_model(char **buf);
  19 bool kvmppc_get_host_serial(char **buf);
  20 int kvmppc_get_hasidle(CPUPPCState *env);
  21 int kvmppc_get_hypercall(CPUPPCState *env, uint8_t *buf, int buf_len);
  22 int kvmppc_set_interrupt(PowerPCCPU *cpu, int irq, int level);
  23 void kvmppc_enable_logical_ci_hcalls(void);
  24 void kvmppc_enable_set_mode_hcall(void);
  25 void kvmppc_enable_clear_ref_mod_hcalls(void);
  26 void kvmppc_set_papr(PowerPCCPU *cpu);
  27 int kvmppc_set_compat(PowerPCCPU *cpu, uint32_t compat_pvr);
  28 void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy);
  29 int kvmppc_smt_threads(void);
  30 void kvmppc_hint_smt_possible(Error **errp);
  31 int kvmppc_set_smt_threads(int smt);
  32 int kvmppc_clear_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits);
  33 int kvmppc_or_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits);
  34 int kvmppc_set_tcr(PowerPCCPU *cpu);
  35 int kvmppc_booke_watchdog_enable(PowerPCCPU *cpu);
  36 target_ulong kvmppc_configure_v3_mmu(PowerPCCPU *cpu,
  37                                      bool radix, bool gtse,
  38                                      uint64_t proc_tbl);
  39 #ifndef CONFIG_USER_ONLY
  40 off_t kvmppc_alloc_rma(void **rma);
  41 bool kvmppc_spapr_use_multitce(void);
  42 int kvmppc_spapr_enable_inkernel_multitce(void);
  43 void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t page_shift,
  44                               uint64_t bus_offset, uint32_t nb_table,
  45                               int *pfd, bool need_vfio);
  46 int kvmppc_remove_spapr_tce(void *table, int pfd, uint32_t window_size);
  47 int kvmppc_reset_htab(int shift_hint);
  48 uint64_t kvmppc_rma_size(uint64_t current_size, unsigned int hash_shift);
  49 bool kvmppc_has_cap_spapr_vfio(void);
  50 #endif /* !CONFIG_USER_ONLY */
  51 bool kvmppc_has_cap_epr(void);
  52 int kvmppc_define_rtas_kernel_token(uint32_t token, const char *function);
  53 int kvmppc_get_htab_fd(bool write, uint64_t index, Error **errp);
  54 int kvmppc_save_htab(QEMUFile *f, int fd, size_t bufsize, int64_t max_ns);
  55 int kvmppc_load_htab_chunk(QEMUFile *f, int fd, uint32_t index,
  56                            uint16_t n_valid, uint16_t n_invalid);
  57 void kvmppc_read_hptes(ppc_hash_pte64_t *hptes, hwaddr ptex, int n);
  58 void kvmppc_write_hpte(hwaddr ptex, uint64_t pte0, uint64_t pte1);
  59 bool kvmppc_has_cap_fixup_hcalls(void);
  60 bool kvmppc_has_cap_htm(void);
  61 bool kvmppc_has_cap_mmu_radix(void);
  62 bool kvmppc_has_cap_mmu_hash_v3(void);
  63 int kvmppc_get_cap_safe_cache(void);
  64 int kvmppc_get_cap_safe_bounds_check(void);
  65 int kvmppc_get_cap_safe_indirect_branch(void);
  66 int kvmppc_enable_hwrng(void);
  67 int kvmppc_put_books_sregs(PowerPCCPU *cpu);
  68 PowerPCCPUClass *kvm_ppc_get_host_cpu_class(void);
  69 void kvmppc_check_papr_resize_hpt(Error **errp);
  70 int kvmppc_resize_hpt_prepare(PowerPCCPU *cpu, target_ulong flags, int shift);
  71 int kvmppc_resize_hpt_commit(PowerPCCPU *cpu, target_ulong flags, int shift);
  72 bool kvmppc_pvr_workaround_required(PowerPCCPU *cpu);
  73
  74 bool kvmppc_is_mem_backend_page_size_ok(const char *obj_path);
  75
  76 #else
  77
  78 static inline uint32_t kvmppc_get_tbfreq(void)
  79 {
  80     return 0;
  81 }
  82
  83 static inline bool kvmppc_get_host_model(char **buf)
  84 {
  85     return false;
  86 }
  87
  88 static inline bool kvmppc_get_host_serial(char **buf)
  89 {
  90     return false;
  91 }
  92
  93 static inline uint64_t kvmppc_get_clockfreq(void)
  94 {
  95     return 0;
  96 }
  97
  98 static inline uint32_t kvmppc_get_vmx(void)
  99 {
 100     return 0;
 101 }
 102
 103 static inline uint32_t kvmppc_get_dfp(void)
 104 {
 105     return 0;
 106 }
 107
 108 static inline int kvmppc_get_hasidle(CPUPPCState *env)
 109 {
 110     return 0;
 111 }
 112
 113 static inline int kvmppc_get_hypercall(CPUPPCState *env, uint8_t *buf, int buf_len)
 114 {
 115     return -1;
 116 }
 117
 118 static inline int kvmppc_set_interrupt(PowerPCCPU *cpu, int irq, int level)
 119 {
 120     return -1;
 121 }
 122
 123 static inline void kvmppc_enable_logical_ci_hcalls(void)
 124 {
 125 }
 126
 127 static inline void kvmppc_enable_set_mode_hcall(void)
 128 {
 129 }
 130
 131 static inline void kvmppc_enable_clear_ref_mod_hcalls(void)
 132 {
 133 }
 134
 135 static inline void kvmppc_set_papr(PowerPCCPU *cpu)
 136 {
 137 }
 138
 139 static inline int kvmppc_set_compat(PowerPCCPU *cpu, uint32_t compat_pvr)
 140 {
 141     return 0;
 142 }
 143
 144 static inline void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy)
 145 {
 146 }
 147
 148 static inline int kvmppc_smt_threads(void)
 149 {
 150     return 1;
 151 }
 152
 153 static inline void kvmppc_hint_smt_possible(Error **errp)
 154 {
 155     return;
 156 }
 157
 158 static inline int kvmppc_set_smt_threads(int smt)
 159 {
 160     return 0;
 161 }
 162
 163 static inline int kvmppc_or_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits)
 164 {
 165     return 0;
 166 }
 167
 168 static inline int kvmppc_clear_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits)
 169 {
 170     return 0;
 171 }
 172
 173 static inline int kvmppc_set_tcr(PowerPCCPU *cpu)
 174 {
 175     return 0;
 176 }
 177
 178 static inline int kvmppc_booke_watchdog_enable(PowerPCCPU *cpu)
 179 {
 180     return -1;
 181 }
 182
 183 static inline target_ulong kvmppc_configure_v3_mmu(PowerPCCPU *cpu,
 184                                      bool radix, bool gtse,
 185                                      uint64_t proc_tbl)
 186 {
 187     return 0;
 188 }
 189
 190 #ifndef CONFIG_USER_ONLY
 191 static inline off_t kvmppc_alloc_rma(void **rma)
 192 {
 193     return 0;
 194 }
 195
 196 static inline bool kvmppc_spapr_use_multitce(void)
 197 {
 198     return false;
 199 }
 200
 201 static inline int kvmppc_spapr_enable_inkernel_multitce(void)
 202 {
 203     return -1;
 204 }
 205
 206 static inline void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t page_shift,
 207                                             uint64_t bus_offset,
 208                                             uint32_t nb_table,
 209                                             int *pfd, bool need_vfio)
 210 {
 211     return NULL;
 212 }
 213
 214 static inline int kvmppc_remove_spapr_tce(void *table, int pfd,
 215                                           uint32_t nb_table)
 216 {
 217     return -1;
 218 }
 219
 220 static inline int kvmppc_reset_htab(int shift_hint)
 221 {
 222     return 0;
 223 }
 224
 225 static inline uint64_t kvmppc_rma_size(uint64_t current_size,
 226                                        unsigned int hash_shift)
 227 {
 228     return ram_size;
 229 }
 230
 231 static inline bool kvmppc_is_mem_backend_page_size_ok(const char *obj_path)
 232 {
 233     return true;
 234 }
 235
 236 static inline bool kvmppc_has_cap_spapr_vfio(void)
 237 {
 238     return false;
 239 }
 240
 241 #endif /* !CONFIG_USER_ONLY */
 242
 243 static inline bool kvmppc_has_cap_epr(void)
 244 {
 245     return false;
 246 }
 247
 248 static inline int kvmppc_define_rtas_kernel_token(uint32_t token,
 249                                                   const char *function)
 250 {
 251     return -1;
 252 }
 253
 254 static inline int kvmppc_get_htab_fd(bool write, uint64_t index, Error **errp)
 255 {
 256     return -1;
 257 }
 258
 259 static inline int kvmppc_save_htab(QEMUFile *f, int fd, size_t bufsize,
 260                                    int64_t max_ns)
 261 {
 262     abort();
 263 }
 264
 265 static inline int kvmppc_load_htab_chunk(QEMUFile *f, int fd, uint32_t index,
 266                                          uint16_t n_valid, uint16_t n_invalid)
 267 {
 268     abort();
 269 }
 270
 271 static inline void kvmppc_read_hptes(ppc_hash_pte64_t *hptes,
 272                                      hwaddr ptex, int n)
 273 {
 274     abort();
 275 }
 276
 277 static inline void kvmppc_write_hpte(hwaddr ptex, uint64_t pte0, uint64_t pte1)
 278 {
 279     abort();
 280 }
 281
 282 static inline bool kvmppc_has_cap_fixup_hcalls(void)
 283 {
 284     abort();
 285 }
 286
 287 static inline bool kvmppc_has_cap_htm(void)
 288 {
 289     return false;
 290 }
 291
 292 static inline bool kvmppc_has_cap_mmu_radix(void)
 293 {
 294     return false;
 295 }
 296
 297 static inline bool kvmppc_has_cap_mmu_hash_v3(void)
 298 {
 299     return false;
 300 }
 301
 302 static inline int kvmppc_get_cap_safe_cache(void)
 303 {
 304     return 0;
 305 }
 306
 307 static inline int kvmppc_get_cap_safe_bounds_check(void)
 308 {
 309     return 0;
 310 }
 311
 312 static inline int kvmppc_get_cap_safe_indirect_branch(void)
 313 {
 314     return 0;
 315 }
 316
 317 static inline int kvmppc_enable_hwrng(void)
 318 {
 319     return -1;
 320 }
 321
 322 static inline int kvmppc_put_books_sregs(PowerPCCPU *cpu)
 323 {
 324     abort();
 325 }
 326
 327 static inline PowerPCCPUClass *kvm_ppc_get_host_cpu_class(void)
 328 {
 329     return NULL;
 330 }
 331
 332 static inline void kvmppc_check_papr_resize_hpt(Error **errp)
 333 {
 334     return;
 335 }
 336
 337 static inline int kvmppc_resize_hpt_prepare(PowerPCCPU *cpu,
 338                                             target_ulong flags, int shift)
 339 {
 340     return -ENOSYS;
 341 }
 342
 343 static inline int kvmppc_resize_hpt_commit(PowerPCCPU *cpu,
 344                                            target_ulong flags, int shift)
 345 {
 346     return -ENOSYS;
 347 }
 348
 349 #endif
 350
 351 #ifndef CONFIG_KVM
 352
 353 #define kvmppc_eieio() do { } while (0)
 354
 355 static inline void kvmppc_dcbst_range(PowerPCCPU *cpu, uint8_t *addr, int len)
 356 {
 357 }
 358
 359 static inline void kvmppc_icbi_range(PowerPCCPU *cpu, uint8_t *addr, int len)
 360 {
 361 }
 362
 363 #else   /* CONFIG_KVM */
 364
 365 #define kvmppc_eieio() \
 366     do {                                          \
 367         if (kvm_enabled()) {                          \
 368             asm volatile("eieio" : : : "memory"); \
 369         } \
 370     } while (0)
 371
 372 /* Store data cache blocks back to memory */
 373 static inline void kvmppc_dcbst_range(PowerPCCPU *cpu, uint8_t *addr, int len)
 374 {
 375     uint8_t *p;
 376
 377     for (p = addr; p < addr + len; p += cpu->env.dcache_line_size) {
 378         asm volatile("dcbst 0,%0" : : "r"(p) : "memory");
 379     }
 380 }
 381
 382 /* Invalidate instruction cache blocks */
 383 static inline void kvmppc_icbi_range(PowerPCCPU *cpu, uint8_t *addr, int len)
 384 {
 385     uint8_t *p;
 386
 387     for (p = addr; p < addr + len; p += cpu->env.icache_line_size) {
 388         asm volatile("icbi 0,%0" : : "r"(p));
 389     }
 390 }
 391
 392 #endif  /* CONFIG_KVM */
 393
 394 #endif /* KVM_PPC_H */