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_enable_h_page_init(void);
  27 void kvmppc_set_papr(PowerPCCPU *cpu);
  28 int kvmppc_set_compat(PowerPCCPU *cpu, uint32_t compat_pvr);
  29 void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy);
  30 bool kvmppc_get_fwnmi(void);
  31 int kvmppc_set_fwnmi(PowerPCCPU *cpu);
  32 int kvmppc_smt_threads(void);
  33 void kvmppc_error_append_smt_possible_hint(Error *const *errp);
  34 int kvmppc_set_smt_threads(int smt);
  35 int kvmppc_clear_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits);
  36 int kvmppc_or_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits);
  37 int kvmppc_set_tcr(PowerPCCPU *cpu);
  38 int kvmppc_booke_watchdog_enable(PowerPCCPU *cpu);
  39 target_ulong kvmppc_configure_v3_mmu(PowerPCCPU *cpu,
  40                                      bool radix, bool gtse,
  41                                      uint64_t proc_tbl);
  42 void kvmppc_svm_off(Error **errp);
  43 #ifndef CONFIG_USER_ONLY
  44 bool kvmppc_spapr_use_multitce(void);
  45 int kvmppc_spapr_enable_inkernel_multitce(void);
  46 void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t page_shift,
  47                               uint64_t bus_offset, uint32_t nb_table,
  48                               int *pfd, bool need_vfio);
  49 int kvmppc_remove_spapr_tce(void *table, int pfd, uint32_t window_size);
  50 int kvmppc_reset_htab(int shift_hint);
  51 uint64_t kvmppc_vrma_limit(unsigned int hash_shift);
  52 bool kvmppc_has_cap_spapr_vfio(void);
  53 #endif /* !CONFIG_USER_ONLY */
  54 bool kvmppc_has_cap_epr(void);
  55 int kvmppc_define_rtas_kernel_token(uint32_t token, const char *function);
  56 int kvmppc_get_htab_fd(bool write, uint64_t index, Error **errp);
  57 int kvmppc_save_htab(QEMUFile *f, int fd, size_t bufsize, int64_t max_ns);
  58 int kvmppc_load_htab_chunk(QEMUFile *f, int fd, uint32_t index,
  59                            uint16_t n_valid, uint16_t n_invalid);
  60 void kvmppc_read_hptes(ppc_hash_pte64_t *hptes, hwaddr ptex, int n);
  61 void kvmppc_write_hpte(hwaddr ptex, uint64_t pte0, uint64_t pte1);
  62 bool kvmppc_has_cap_fixup_hcalls(void);
  63 bool kvmppc_has_cap_htm(void);
  64 bool kvmppc_has_cap_mmu_radix(void);
  65 bool kvmppc_has_cap_mmu_hash_v3(void);
  66 bool kvmppc_has_cap_xive(void);
  67 int kvmppc_get_cap_safe_cache(void);
  68 int kvmppc_get_cap_safe_bounds_check(void);
  69 int kvmppc_get_cap_safe_indirect_branch(void);
  70 int kvmppc_get_cap_count_cache_flush_assist(void);
  71 bool kvmppc_has_cap_nested_kvm_hv(void);
  72 int kvmppc_set_cap_nested_kvm_hv(int enable);
  73 int kvmppc_get_cap_large_decr(void);
  74 int kvmppc_enable_cap_large_decr(PowerPCCPU *cpu, int enable);
  75 int kvmppc_enable_hwrng(void);
  76 int kvmppc_put_books_sregs(PowerPCCPU *cpu);
  77 PowerPCCPUClass *kvm_ppc_get_host_cpu_class(void);
  78 void kvmppc_check_papr_resize_hpt(Error **errp);
  79 int kvmppc_resize_hpt_prepare(PowerPCCPU *cpu, target_ulong flags, int shift);
  80 int kvmppc_resize_hpt_commit(PowerPCCPU *cpu, target_ulong flags, int shift);
  81 bool kvmppc_pvr_workaround_required(PowerPCCPU *cpu);
  82
  83 bool kvmppc_hpt_needs_host_contiguous_pages(void);
  84 void kvm_check_mmu(PowerPCCPU *cpu, Error **errp);
  85 void kvmppc_set_reg_ppc_online(PowerPCCPU *cpu, unsigned int online);
  86 void kvmppc_set_reg_tb_offset(PowerPCCPU *cpu, int64_t tb_offset);
  87
  88 int kvm_handle_nmi(PowerPCCPU *cpu, struct kvm_run *run);
  89
  90 #else
  91
  92 static inline uint32_t kvmppc_get_tbfreq(void)
  93 {
  94     return 0;
  95 }
  96
  97 static inline bool kvmppc_get_host_model(char **buf)
  98 {
  99     return false;
 100 }
 101
 102 static inline bool kvmppc_get_host_serial(char **buf)
 103 {
 104     return false;
 105 }
 106
 107 static inline uint64_t kvmppc_get_clockfreq(void)
 108 {
 109     return 0;
 110 }
 111
 112 static inline uint32_t kvmppc_get_vmx(void)
 113 {
 114     return 0;
 115 }
 116
 117 static inline uint32_t kvmppc_get_dfp(void)
 118 {
 119     return 0;
 120 }
 121
 122 static inline int kvmppc_get_hasidle(CPUPPCState *env)
 123 {
 124     return 0;
 125 }
 126
 127 static inline int kvmppc_get_hypercall(CPUPPCState *env,
 128                                        uint8_t *buf, int buf_len)
 129 {
 130     return -1;
 131 }
 132
 133 static inline int kvmppc_set_interrupt(PowerPCCPU *cpu, int irq, int level)
 134 {
 135     return -1;
 136 }
 137
 138 static inline void kvmppc_enable_logical_ci_hcalls(void)
 139 {
 140 }
 141
 142 static inline void kvmppc_enable_set_mode_hcall(void)
 143 {
 144 }
 145
 146 static inline void kvmppc_enable_clear_ref_mod_hcalls(void)
 147 {
 148 }
 149
 150 static inline void kvmppc_enable_h_page_init(void)
 151 {
 152 }
 153
 154 static inline void kvmppc_set_papr(PowerPCCPU *cpu)
 155 {
 156 }
 157
 158 static inline int kvmppc_set_compat(PowerPCCPU *cpu, uint32_t compat_pvr)
 159 {
 160     return 0;
 161 }
 162
 163 static inline void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy)
 164 {
 165 }
 166
 167 static inline bool kvmppc_get_fwnmi(void)
 168 {
 169     return false;
 170 }
 171
 172 static inline int kvmppc_set_fwnmi(PowerPCCPU *cpu)
 173 {
 174     return -1;
 175 }
 176
 177 static inline int kvmppc_smt_threads(void)
 178 {
 179     return 1;
 180 }
 181
 182 static inline void kvmppc_error_append_smt_possible_hint(Error *const *errp)
 183 {
 184     return;
 185 }
 186
 187 static inline int kvmppc_set_smt_threads(int smt)
 188 {
 189     return 0;
 190 }
 191
 192 static inline int kvmppc_or_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits)
 193 {
 194     return 0;
 195 }
 196
 197 static inline int kvmppc_clear_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits)
 198 {
 199     return 0;
 200 }
 201
 202 static inline int kvmppc_set_tcr(PowerPCCPU *cpu)
 203 {
 204     return 0;
 205 }
 206
 207 static inline int kvmppc_booke_watchdog_enable(PowerPCCPU *cpu)
 208 {
 209     return -1;
 210 }
 211
 212 static inline target_ulong kvmppc_configure_v3_mmu(PowerPCCPU *cpu,
 213                                      bool radix, bool gtse,
 214                                      uint64_t proc_tbl)
 215 {
 216     return 0;
 217 }
 218
 219 static inline void kvmppc_svm_off(Error **errp)
 220 {
 221     return;
 222 }
 223
 224 static inline void kvmppc_set_reg_ppc_online(PowerPCCPU *cpu,
 225                                              unsigned int online)
 226 {
 227     return;
 228 }
 229
 230 static inline void kvmppc_set_reg_tb_offset(PowerPCCPU *cpu, int64_t tb_offset)
 231 {
 232 }
 233
 234 #ifndef CONFIG_USER_ONLY
 235 static inline bool kvmppc_spapr_use_multitce(void)
 236 {
 237     return false;
 238 }
 239
 240 static inline int kvmppc_spapr_enable_inkernel_multitce(void)
 241 {
 242     return -1;
 243 }
 244
 245 static inline void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t page_shift,
 246                                             uint64_t bus_offset,
 247                                             uint32_t nb_table,
 248                                             int *pfd, bool need_vfio)
 249 {
 250     return NULL;
 251 }
 252
 253 static inline int kvmppc_remove_spapr_tce(void *table, int pfd,
 254                                           uint32_t nb_table)
 255 {
 256     return -1;
 257 }
 258
 259 static inline int kvmppc_reset_htab(int shift_hint)
 260 {
 261     return 0;
 262 }
 263
 264 static inline uint64_t kvmppc_vrma_limit(unsigned int hash_shift)
 265 {
 266     g_assert_not_reached();
 267 }
 268
 269 static inline bool kvmppc_hpt_needs_host_contiguous_pages(void)
 270 {
 271     return false;
 272 }
 273
 274 static inline void kvm_check_mmu(PowerPCCPU *cpu, Error **errp)
 275 {
 276 }
 277
 278 static inline bool kvmppc_has_cap_spapr_vfio(void)
 279 {
 280     return false;
 281 }
 282
 283 static inline void kvmppc_read_hptes(ppc_hash_pte64_t *hptes,
 284                                      hwaddr ptex, int n)
 285 {
 286     abort();
 287 }
 288
 289 static inline void kvmppc_write_hpte(hwaddr ptex, uint64_t pte0, uint64_t pte1)
 290 {
 291     abort();
 292 }
 293
 294 #endif /* !CONFIG_USER_ONLY */
 295
 296 static inline bool kvmppc_has_cap_epr(void)
 297 {
 298     return false;
 299 }
 300
 301 static inline int kvmppc_define_rtas_kernel_token(uint32_t token,
 302                                                   const char *function)
 303 {
 304     return -1;
 305 }
 306
 307 static inline int kvmppc_get_htab_fd(bool write, uint64_t index, Error **errp)
 308 {
 309     return -1;
 310 }
 311
 312 static inline int kvmppc_save_htab(QEMUFile *f, int fd, size_t bufsize,
 313                                    int64_t max_ns)
 314 {
 315     abort();
 316 }
 317
 318 static inline int kvmppc_load_htab_chunk(QEMUFile *f, int fd, uint32_t index,
 319                                          uint16_t n_valid, uint16_t n_invalid)
 320 {
 321     abort();
 322 }
 323
 324 static inline bool kvmppc_has_cap_fixup_hcalls(void)
 325 {
 326     abort();
 327 }
 328
 329 static inline bool kvmppc_has_cap_htm(void)
 330 {
 331     return false;
 332 }
 333
 334 static inline bool kvmppc_has_cap_mmu_radix(void)
 335 {
 336     return false;
 337 }
 338
 339 static inline bool kvmppc_has_cap_mmu_hash_v3(void)
 340 {
 341     return false;
 342 }
 343
 344 static inline bool kvmppc_has_cap_xive(void)
 345 {
 346     return false;
 347 }
 348
 349 static inline int kvmppc_get_cap_safe_cache(void)
 350 {
 351     return 0;
 352 }
 353
 354 static inline int kvmppc_get_cap_safe_bounds_check(void)
 355 {
 356     return 0;
 357 }
 358
 359 static inline int kvmppc_get_cap_safe_indirect_branch(void)
 360 {
 361     return 0;
 362 }
 363
 364 static inline int kvmppc_get_cap_count_cache_flush_assist(void)
 365 {
 366     return 0;
 367 }
 368
 369 static inline bool kvmppc_has_cap_nested_kvm_hv(void)
 370 {
 371     return false;
 372 }
 373
 374 static inline int kvmppc_set_cap_nested_kvm_hv(int enable)
 375 {
 376     return -1;
 377 }
 378
 379 static inline int kvmppc_get_cap_large_decr(void)
 380 {
 381     return 0;
 382 }
 383
 384 static inline int kvmppc_enable_cap_large_decr(PowerPCCPU *cpu, int enable)
 385 {
 386     return -1;
 387 }
 388
 389 static inline int kvmppc_enable_hwrng(void)
 390 {
 391     return -1;
 392 }
 393
 394 static inline int kvmppc_put_books_sregs(PowerPCCPU *cpu)
 395 {
 396     abort();
 397 }
 398
 399 static inline PowerPCCPUClass *kvm_ppc_get_host_cpu_class(void)
 400 {
 401     return NULL;
 402 }
 403
 404 static inline void kvmppc_check_papr_resize_hpt(Error **errp)
 405 {
 406     return;
 407 }
 408
 409 static inline int kvmppc_resize_hpt_prepare(PowerPCCPU *cpu,
 410                                             target_ulong flags, int shift)
 411 {
 412     return -ENOSYS;
 413 }
 414
 415 static inline int kvmppc_resize_hpt_commit(PowerPCCPU *cpu,
 416                                            target_ulong flags, int shift)
 417 {
 418     return -ENOSYS;
 419 }
 420
 421 static inline bool kvmppc_pvr_workaround_required(PowerPCCPU *cpu)
 422 {
 423     return false;
 424 }
 425
 426 #endif
 427
 428 #ifndef CONFIG_KVM
 429
 430 #define kvmppc_eieio() do { } while (0)
 431
 432 static inline void kvmppc_dcbst_range(PowerPCCPU *cpu, uint8_t *addr, int len)
 433 {
 434 }
 435
 436 static inline void kvmppc_icbi_range(PowerPCCPU *cpu, uint8_t *addr, int len)
 437 {
 438 }
 439
 440 #else   /* CONFIG_KVM */
 441
 442 #define kvmppc_eieio() \
 443     do {                                          \
 444         if (kvm_enabled()) {                          \
 445             asm volatile("eieio" : : : "memory"); \
 446         } \
 447     } while (0)
 448
 449 /* Store data cache blocks back to memory */
 450 static inline void kvmppc_dcbst_range(PowerPCCPU *cpu, uint8_t *addr, int len)
 451 {
 452     uint8_t *p;
 453
 454     for (p = addr; p < addr + len; p += cpu->env.dcache_line_size) {
 455         asm volatile("dcbst 0,%0" : : "r"(p) : "memory");
 456     }
 457 }
 458
 459 /* Invalidate instruction cache blocks */
 460 static inline void kvmppc_icbi_range(PowerPCCPU *cpu, uint8_t *addr, int len)
 461 {
 462     uint8_t *p;
 463
 464     for (p = addr; p < addr + len; p += cpu->env.icache_line_size) {
 465         asm volatile("icbi 0,%0" : : "r"(p));
 466     }
 467 }
 468
 469 #endif  /* CONFIG_KVM */
 470
 471 #endif /* KVM_PPC_H */