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