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