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_enable_h_rpt_invalidate(void);
  28 void kvmppc_set_papr(PowerPCCPU *cpu);
  29 int kvmppc_set_compat(PowerPCCPU *cpu, uint32_t compat_pvr);
  30 void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy);
  31 bool kvmppc_get_fwnmi(void);
  32 int kvmppc_set_fwnmi(PowerPCCPU *cpu);
  33 int kvmppc_smt_threads(void);
  34 void kvmppc_error_append_smt_possible_hint(Error *const *errp);
  35 int kvmppc_set_smt_threads(int smt);
  36 int kvmppc_clear_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits);
  37 int kvmppc_or_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits);
  38 int kvmppc_set_tcr(PowerPCCPU *cpu);
  39 int kvmppc_booke_watchdog_enable(PowerPCCPU *cpu);
  40 target_ulong kvmppc_configure_v3_mmu(PowerPCCPU *cpu,
  41                                      bool radix, bool gtse,
  42                                      uint64_t proc_tbl);
  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, Error **errp);
  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_has_cap_rpt_invalidate(void);
  76 int kvmppc_enable_hwrng(void);
  77 int kvmppc_put_books_sregs(PowerPCCPU *cpu);
  78 PowerPCCPUClass *kvm_ppc_get_host_cpu_class(void);
  79 void kvmppc_check_papr_resize_hpt(Error **errp);
  80 int kvmppc_resize_hpt_prepare(PowerPCCPU *cpu, target_ulong flags, int shift);
  81 int kvmppc_resize_hpt_commit(PowerPCCPU *cpu, target_ulong flags, int shift);
  82 bool kvmppc_pvr_workaround_required(PowerPCCPU *cpu);
  83
  84 bool kvmppc_hpt_needs_host_contiguous_pages(void);
  85 void kvm_check_mmu(PowerPCCPU *cpu, Error **errp);
  86 void kvmppc_set_reg_ppc_online(PowerPCCPU *cpu, unsigned int online);
  87 void kvmppc_set_reg_tb_offset(PowerPCCPU *cpu, int64_t tb_offset);
  88
  89 int kvm_handle_nmi(PowerPCCPU *cpu, struct kvm_run *run);
  90
  91 #else
  92
  93 static inline uint32_t kvmppc_get_tbfreq(void)
  94 {
  95     return 0;
  96 }
  97
  98 static inline bool kvmppc_get_host_model(char **buf)
  99 {
 100     return false;
 101 }
 102
 103 static inline bool kvmppc_get_host_serial(char **buf)
 104 {
 105     return false;
 106 }
 107
 108 static inline uint64_t kvmppc_get_clockfreq(void)
 109 {
 110     return 0;
 111 }
 112
 113 static inline uint32_t kvmppc_get_vmx(void)
 114 {
 115     return 0;
 116 }
 117
 118 static inline uint32_t kvmppc_get_dfp(void)
 119 {
 120     return 0;
 121 }
 122
 123 static inline int kvmppc_get_hasidle(CPUPPCState *env)
 124 {
 125     return 0;
 126 }
 127
 128 static inline int kvmppc_get_hypercall(CPUPPCState *env,
 129                                        uint8_t *buf, int buf_len)
 130 {
 131     return -1;
 132 }
 133
 134 static inline int kvmppc_set_interrupt(PowerPCCPU *cpu, int irq, int level)
 135 {
 136     return -1;
 137 }
 138
 139 static inline void kvmppc_enable_logical_ci_hcalls(void)
 140 {
 141 }
 142
 143 static inline void kvmppc_enable_set_mode_hcall(void)
 144 {
 145 }
 146
 147 static inline void kvmppc_enable_clear_ref_mod_hcalls(void)
 148 {
 149 }
 150
 151 static inline void kvmppc_enable_h_page_init(void)
 152 {
 153 }
 154
 155 static inline void kvmppc_enable_h_rpt_invalidate(void)
 156 {
 157     g_assert_not_reached();
 158 }
 159
 160 static inline void kvmppc_set_papr(PowerPCCPU *cpu)
 161 {
 162 }
 163
 164 static inline int kvmppc_set_compat(PowerPCCPU *cpu, uint32_t compat_pvr)
 165 {
 166     return 0;
 167 }
 168
 169 static inline void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy)
 170 {
 171 }
 172
 173 static inline bool kvmppc_get_fwnmi(void)
 174 {
 175     return false;
 176 }
 177
 178 static inline int kvmppc_set_fwnmi(PowerPCCPU *cpu)
 179 {
 180     return -1;
 181 }
 182
 183 static inline int kvmppc_smt_threads(void)
 184 {
 185     return 1;
 186 }
 187
 188 static inline void kvmppc_error_append_smt_possible_hint(Error *const *errp)
 189 {
 190     return;
 191 }
 192
 193 static inline int kvmppc_set_smt_threads(int smt)
 194 {
 195     return 0;
 196 }
 197
 198 static inline int kvmppc_or_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits)
 199 {
 200     return 0;
 201 }
 202
 203 static inline int kvmppc_clear_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits)
 204 {
 205     return 0;
 206 }
 207
 208 static inline int kvmppc_set_tcr(PowerPCCPU *cpu)
 209 {
 210     return 0;
 211 }
 212
 213 static inline int kvmppc_booke_watchdog_enable(PowerPCCPU *cpu)
 214 {
 215     return -1;
 216 }
 217
 218 static inline target_ulong kvmppc_configure_v3_mmu(PowerPCCPU *cpu,
 219                                      bool radix, bool gtse,
 220                                      uint64_t proc_tbl)
 221 {
 222     return 0;
 223 }
 224
 225 static inline void kvmppc_set_reg_ppc_online(PowerPCCPU *cpu,
 226                                              unsigned int online)
 227 {
 228     return;
 229 }
 230
 231 static inline void kvmppc_set_reg_tb_offset(PowerPCCPU *cpu, int64_t tb_offset)
 232 {
 233 }
 234
 235 #ifndef CONFIG_USER_ONLY
 236 static inline bool kvmppc_spapr_use_multitce(void)
 237 {
 238     return false;
 239 }
 240
 241 static inline int kvmppc_spapr_enable_inkernel_multitce(void)
 242 {
 243     return -1;
 244 }
 245
 246 static inline void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t page_shift,
 247                                             uint64_t bus_offset,
 248                                             uint32_t nb_table,
 249                                             int *pfd, bool need_vfio)
 250 {
 251     return NULL;
 252 }
 253
 254 static inline int kvmppc_remove_spapr_tce(void *table, int pfd,
 255                                           uint32_t nb_table)
 256 {
 257     return -1;
 258 }
 259
 260 static inline int kvmppc_reset_htab(int shift_hint)
 261 {
 262     return 0;
 263 }
 264
 265 static inline uint64_t kvmppc_vrma_limit(unsigned int hash_shift)
 266 {
 267     g_assert_not_reached();
 268 }
 269
 270 static inline bool kvmppc_hpt_needs_host_contiguous_pages(void)
 271 {
 272     return false;
 273 }
 274
 275 static inline void kvm_check_mmu(PowerPCCPU *cpu, Error **errp)
 276 {
 277 }
 278
 279 static inline bool kvmppc_has_cap_spapr_vfio(void)
 280 {
 281     return false;
 282 }
 283
 284 static inline void kvmppc_read_hptes(ppc_hash_pte64_t *hptes,
 285                                      hwaddr ptex, int n)
 286 {
 287     abort();
 288 }
 289
 290 static inline void kvmppc_write_hpte(hwaddr ptex, uint64_t pte0, uint64_t pte1)
 291 {
 292     abort();
 293 }
 294
 295 #endif /* !CONFIG_USER_ONLY */
 296
 297 static inline bool kvmppc_has_cap_epr(void)
 298 {
 299     return false;
 300 }
 301
 302 static inline int kvmppc_define_rtas_kernel_token(uint32_t token,
 303                                                   const char *function)
 304 {
 305     return -1;
 306 }
 307
 308 static inline int kvmppc_get_htab_fd(bool write, uint64_t index, Error **errp)
 309 {
 310     return -1;
 311 }
 312
 313 static inline int kvmppc_save_htab(QEMUFile *f, int fd, size_t bufsize,
 314                                    int64_t max_ns)
 315 {
 316     abort();
 317 }
 318
 319 static inline int kvmppc_load_htab_chunk(QEMUFile *f, int fd, uint32_t index,
 320                                          uint16_t n_valid, uint16_t n_invalid,
 321                                          Error **errp)
 322 {
 323     abort();
 324 }
 325
 326 static inline bool kvmppc_has_cap_fixup_hcalls(void)
 327 {
 328     abort();
 329 }
 330
 331 static inline bool kvmppc_has_cap_htm(void)
 332 {
 333     return false;
 334 }
 335
 336 static inline bool kvmppc_has_cap_mmu_radix(void)
 337 {
 338     return false;
 339 }
 340
 341 static inline bool kvmppc_has_cap_mmu_hash_v3(void)
 342 {
 343     return false;
 344 }
 345
 346 static inline bool kvmppc_has_cap_xive(void)
 347 {
 348     return false;
 349 }
 350
 351 static inline int kvmppc_get_cap_safe_cache(void)
 352 {
 353     return 0;
 354 }
 355
 356 static inline int kvmppc_get_cap_safe_bounds_check(void)
 357 {
 358     return 0;
 359 }
 360
 361 static inline int kvmppc_get_cap_safe_indirect_branch(void)
 362 {
 363     return 0;
 364 }
 365
 366 static inline int kvmppc_get_cap_count_cache_flush_assist(void)
 367 {
 368     return 0;
 369 }
 370
 371 static inline bool kvmppc_has_cap_nested_kvm_hv(void)
 372 {
 373     return false;
 374 }
 375
 376 static inline int kvmppc_set_cap_nested_kvm_hv(int enable)
 377 {
 378     return -1;
 379 }
 380
 381 static inline int kvmppc_get_cap_large_decr(void)
 382 {
 383     return 0;
 384 }
 385
 386 static inline int kvmppc_enable_cap_large_decr(PowerPCCPU *cpu, int enable)
 387 {
 388     return -1;
 389 }
 390
 391 static inline int kvmppc_has_cap_rpt_invalidate(void)
 392 {
 393     return false;
 394 }
 395
 396 static inline int kvmppc_enable_hwrng(void)
 397 {
 398     return -1;
 399 }
 400
 401 static inline int kvmppc_put_books_sregs(PowerPCCPU *cpu)
 402 {
 403     abort();
 404 }
 405
 406 static inline PowerPCCPUClass *kvm_ppc_get_host_cpu_class(void)
 407 {
 408     return NULL;
 409 }
 410
 411 static inline void kvmppc_check_papr_resize_hpt(Error **errp)
 412 {
 413     return;
 414 }
 415
 416 static inline int kvmppc_resize_hpt_prepare(PowerPCCPU *cpu,
 417                                             target_ulong flags, int shift)
 418 {
 419     return -ENOSYS;
 420 }
 421
 422 static inline int kvmppc_resize_hpt_commit(PowerPCCPU *cpu,
 423                                            target_ulong flags, int shift)
 424 {
 425     return -ENOSYS;
 426 }
 427
 428 static inline bool kvmppc_pvr_workaround_required(PowerPCCPU *cpu)
 429 {
 430     return false;
 431 }
 432
 433 #endif
 434
 435 #ifndef CONFIG_KVM
 436
 437 #define kvmppc_eieio() do { } while (0)
 438
 439 static inline void kvmppc_dcbst_range(PowerPCCPU *cpu, uint8_t *addr, int len)
 440 {
 441 }
 442
 443 static inline void kvmppc_icbi_range(PowerPCCPU *cpu, uint8_t *addr, int len)
 444 {
 445 }
 446
 447 #else   /* CONFIG_KVM */
 448
 449 #define kvmppc_eieio() \
 450     do {                                          \
 451         if (kvm_enabled()) {                          \
 452             asm volatile("eieio" : : : "memory"); \
 453         } \
 454     } while (0)
 455
 456 /* Store data cache blocks back to memory */
 457 static inline void kvmppc_dcbst_range(PowerPCCPU *cpu, uint8_t *addr, int len)
 458 {
 459     uint8_t *p;
 460
 461     for (p = addr; p < addr + len; p += cpu->env.dcache_line_size) {
 462         asm volatile("dcbst 0,%0" : : "r"(p) : "memory");
 463     }
 464 }
 465
 466 /* Invalidate instruction cache blocks */
 467 static inline void kvmppc_icbi_range(PowerPCCPU *cpu, uint8_t *addr, int len)
 468 {
 469     uint8_t *p;
 470
 471     for (p = addr; p < addr + len; p += cpu->env.icache_line_size) {
 472         asm volatile("icbi 0,%0" : : "r"(p));
 473     }
 474 }
 475
 476 #endif  /* CONFIG_KVM */
 477
 478 #endif /* KVM_PPC_H */