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