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