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_rma_size(uint64_t current_size, 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_rma_size(uint64_t current_size,
 259                                        unsigned int hash_shift)
 260 {
 261     return ram_size;
 262 }
 263
 264 static inline bool kvmppc_hpt_needs_host_contiguous_pages(void)
 265 {
 266     return false;
 267 }
 268
 269 static inline void kvm_check_mmu(PowerPCCPU *cpu, Error **errp)
 270 {
 271 }
 272
 273 static inline bool kvmppc_has_cap_spapr_vfio(void)
 274 {
 275     return false;
 276 }
 277
 278 #endif /* !CONFIG_USER_ONLY */
 279
 280 static inline bool kvmppc_has_cap_epr(void)
 281 {
 282     return false;
 283 }
 284
 285 static inline int kvmppc_define_rtas_kernel_token(uint32_t token,
 286                                                   const char *function)
 287 {
 288     return -1;
 289 }
 290
 291 static inline int kvmppc_get_htab_fd(bool write, uint64_t index, Error **errp)
 292 {
 293     return -1;
 294 }
 295
 296 static inline int kvmppc_save_htab(QEMUFile *f, int fd, size_t bufsize,
 297                                    int64_t max_ns)
 298 {
 299     abort();
 300 }
 301
 302 static inline int kvmppc_load_htab_chunk(QEMUFile *f, int fd, uint32_t index,
 303                                          uint16_t n_valid, uint16_t n_invalid)
 304 {
 305     abort();
 306 }
 307
 308 static inline void kvmppc_read_hptes(ppc_hash_pte64_t *hptes,
 309                                      hwaddr ptex, int n)
 310 {
 311     abort();
 312 }
 313
 314 static inline void kvmppc_write_hpte(hwaddr ptex, uint64_t pte0, uint64_t pte1)
 315 {
 316     abort();
 317 }
 318
 319 static inline bool kvmppc_has_cap_fixup_hcalls(void)
 320 {
 321     abort();
 322 }
 323
 324 static inline bool kvmppc_has_cap_htm(void)
 325 {
 326     return false;
 327 }
 328
 329 static inline bool kvmppc_has_cap_mmu_radix(void)
 330 {
 331     return false;
 332 }
 333
 334 static inline bool kvmppc_has_cap_mmu_hash_v3(void)
 335 {
 336     return false;
 337 }
 338
 339 static inline bool kvmppc_has_cap_xive(void)
 340 {
 341     return false;
 342 }
 343
 344 static inline int kvmppc_get_cap_safe_cache(void)
 345 {
 346     return 0;
 347 }
 348
 349 static inline int kvmppc_get_cap_safe_bounds_check(void)
 350 {
 351     return 0;
 352 }
 353
 354 static inline int kvmppc_get_cap_safe_indirect_branch(void)
 355 {
 356     return 0;
 357 }
 358
 359 static inline int kvmppc_get_cap_count_cache_flush_assist(void)
 360 {
 361     return 0;
 362 }
 363
 364 static inline bool kvmppc_has_cap_nested_kvm_hv(void)
 365 {
 366     return false;
 367 }
 368
 369 static inline int kvmppc_set_cap_nested_kvm_hv(int enable)
 370 {
 371     return -1;
 372 }
 373
 374 static inline int kvmppc_get_cap_large_decr(void)
 375 {
 376     return 0;
 377 }
 378
 379 static inline int kvmppc_enable_cap_large_decr(PowerPCCPU *cpu, int enable)
 380 {
 381     return -1;
 382 }
 383
 384 static inline int kvmppc_enable_hwrng(void)
 385 {
 386     return -1;
 387 }
 388
 389 static inline int kvmppc_put_books_sregs(PowerPCCPU *cpu)
 390 {
 391     abort();
 392 }
 393
 394 static inline PowerPCCPUClass *kvm_ppc_get_host_cpu_class(void)
 395 {
 396     return NULL;
 397 }
 398
 399 static inline void kvmppc_check_papr_resize_hpt(Error **errp)
 400 {
 401     return;
 402 }
 403
 404 static inline int kvmppc_resize_hpt_prepare(PowerPCCPU *cpu,
 405                                             target_ulong flags, int shift)
 406 {
 407     return -ENOSYS;
 408 }
 409
 410 static inline int kvmppc_resize_hpt_commit(PowerPCCPU *cpu,
 411                                            target_ulong flags, int shift)
 412 {
 413     return -ENOSYS;
 414 }
 415
 416 static inline bool kvmppc_pvr_workaround_required(PowerPCCPU *cpu)
 417 {
 418     return false;
 419 }
 420
 421 #endif
 422
 423 #ifndef CONFIG_KVM
 424
 425 #define kvmppc_eieio() do { } while (0)
 426
 427 static inline void kvmppc_dcbst_range(PowerPCCPU *cpu, uint8_t *addr, int len)
 428 {
 429 }
 430
 431 static inline void kvmppc_icbi_range(PowerPCCPU *cpu, uint8_t *addr, int len)
 432 {
 433 }
 434
 435 #else   /* CONFIG_KVM */
 436
 437 #define kvmppc_eieio() \
 438     do {                                          \
 439         if (kvm_enabled()) {                          \
 440             asm volatile("eieio" : : : "memory"); \
 441         } \
 442     } while (0)
 443
 444 /* Store data cache blocks back to memory */
 445 static inline void kvmppc_dcbst_range(PowerPCCPU *cpu, uint8_t *addr, int len)
 446 {
 447     uint8_t *p;
 448
 449     for (p = addr; p < addr + len; p += cpu->env.dcache_line_size) {
 450         asm volatile("dcbst 0,%0" : : "r"(p) : "memory");
 451     }
 452 }
 453
 454 /* Invalidate instruction cache blocks */
 455 static inline void kvmppc_icbi_range(PowerPCCPU *cpu, uint8_t *addr, int len)
 456 {
 457     uint8_t *p;
 458
 459     for (p = addr; p < addr + len; p += cpu->env.icache_line_size) {
 460         asm volatile("icbi 0,%0" : : "r"(p));
 461     }
 462 }
 463
 464 #endif  /* CONFIG_KVM */
 465
 466 #endif /* KVM_PPC_H */