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