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