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