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