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