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