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