target-ppc/mmu-hash64.h

   1 #if !defined (__MMU_HASH64_H__)
   2 #define __MMU_HASH64_H__
   3
   4 #ifndef CONFIG_USER_ONLY
   5
   6 #ifdef TARGET_PPC64
   7 void dump_slb(FILE *f, fprintf_function cpu_fprintf, CPUPPCState *env);
   8 int ppc_store_slb (CPUPPCState *env, target_ulong rb, target_ulong rs);
   9 hwaddr ppc_hash64_get_phys_page_debug(CPUPPCState *env, target_ulong addr);
  10 int ppc_hash64_handle_mmu_fault(CPUPPCState *env, target_ulong address, int rw,
  11                                 int mmu_idx);
  12 #endif
  13
  14 /*
  15  * SLB definitions
  16  */
  17
  18 /* Bits in the SLB ESID word */
  19 #define SLB_ESID_ESID           0xFFFFFFFFF0000000ULL
  20 #define SLB_ESID_V              0x0000000008000000ULL /* valid */
  21
  22 /* Bits in the SLB VSID word */
  23 #define SLB_VSID_SHIFT          12
  24 #define SLB_VSID_SHIFT_1T       24
  25 #define SLB_VSID_SSIZE_SHIFT    62
  26 #define SLB_VSID_B              0xc000000000000000ULL
  27 #define SLB_VSID_B_256M         0x0000000000000000ULL
  28 #define SLB_VSID_B_1T           0x4000000000000000ULL
  29 #define SLB_VSID_VSID           0x3FFFFFFFFFFFF000ULL
  30 #define SLB_VSID_PTEM           (SLB_VSID_B | SLB_VSID_VSID)
  31 #define SLB_VSID_KS             0x0000000000000800ULL
  32 #define SLB_VSID_KP             0x0000000000000400ULL
  33 #define SLB_VSID_N              0x0000000000000200ULL /* no-execute */
  34 #define SLB_VSID_L              0x0000000000000100ULL
  35 #define SLB_VSID_C              0x0000000000000080ULL /* class */
  36 #define SLB_VSID_LP             0x0000000000000030ULL
  37 #define SLB_VSID_ATTR           0x0000000000000FFFULL
  38
  39 /*
  40  * Hash page table definitions
  41  */
  42
  43 #define HPTES_PER_GROUP         8
  44 #define HASH_PTE_SIZE_64        16
  45 #define HASH_PTEG_SIZE_64       (HASH_PTE_SIZE_64 * HPTES_PER_GROUP)
  46
  47 #define HPTE64_V_SSIZE_SHIFT    62
  48 #define HPTE64_V_AVPN_SHIFT     7
  49 #define HPTE64_V_AVPN           0x3fffffffffffff80ULL
  50 #define HPTE64_V_AVPN_VAL(x)    (((x) & HPTE64_V_AVPN) >> HPTE64_V_AVPN_SHIFT)
  51 #define HPTE64_V_COMPARE(x, y)  (!(((x) ^ (y)) & 0xffffffffffffff80ULL))
  52 #define HPTE64_V_LARGE          0x0000000000000004ULL
  53 #define HPTE64_V_SECONDARY      0x0000000000000002ULL
  54 #define HPTE64_V_VALID          0x0000000000000001ULL
  55
  56 #define HPTE64_R_PP0            0x8000000000000000ULL
  57 #define HPTE64_R_TS             0x4000000000000000ULL
  58 #define HPTE64_R_KEY_HI         0x3000000000000000ULL
  59 #define HPTE64_R_RPN_SHIFT      12
  60 #define HPTE64_R_RPN            0x0ffffffffffff000ULL
  61 #define HPTE64_R_FLAGS          0x00000000000003ffULL
  62 #define HPTE64_R_PP             0x0000000000000003ULL
  63 #define HPTE64_R_N              0x0000000000000004ULL
  64 #define HPTE64_R_G              0x0000000000000008ULL
  65 #define HPTE64_R_M              0x0000000000000010ULL
  66 #define HPTE64_R_I              0x0000000000000020ULL
  67 #define HPTE64_R_W              0x0000000000000040ULL
  68 #define HPTE64_R_WIMG           0x0000000000000078ULL
  69 #define HPTE64_R_C              0x0000000000000080ULL
  70 #define HPTE64_R_R              0x0000000000000100ULL
  71 #define HPTE64_R_KEY_LO         0x0000000000000e00ULL
  72 #define HPTE64_R_KEY(x)         ((((x) & HPTE64_R_KEY_HI) >> 60) | \
  73                                  (((x) & HPTE64_R_KEY_LO) >> 9))
  74
  75 #define HPTE64_V_1TB_SEG        0x4000000000000000ULL
  76 #define HPTE64_V_VRMA_MASK      0x4001ffffff000000ULL
  77
  78
  79 extern bool kvmppc_kern_htab;
  80 uint64_t ppc_hash64_start_access(PowerPCCPU *cpu, target_ulong pte_index);
  81 void ppc_hash64_stop_access(uint64_t token);
  82
  83 static inline target_ulong ppc_hash64_load_hpte0(CPUPPCState *env,
  84                                                  uint64_t token, int index)
  85 {
  86     CPUState *cs = ENV_GET_CPU(env);
  87     uint64_t addr;
  88     addr = token + (index * HASH_PTE_SIZE_64);
  89     if (env->external_htab) {
  90         return  ldq_p((const void *)(uintptr_t)addr);
  91     } else {
  92         return ldq_phys(cs->as, addr);
  93     }
  94 }
  95
  96 static inline target_ulong ppc_hash64_load_hpte1(CPUPPCState *env,
  97                                                  uint64_t token, int index)
  98 {
  99     CPUState *cs = ENV_GET_CPU(env);
 100     uint64_t addr;
 101     addr = token + (index * HASH_PTE_SIZE_64) + HASH_PTE_SIZE_64/2;
 102     if (env->external_htab) {
 103         return  ldq_p((const void *)(uintptr_t)addr);
 104     } else {
 105         return ldq_phys(cs->as, addr);
 106     }
 107 }
 108
 109 static inline void ppc_hash64_store_hpte0(CPUPPCState *env,
 110                                           hwaddr pte_offset, target_ulong pte0)
 111 {
 112     CPUState *cs = ENV_GET_CPU(env);
 113     if (env->external_htab) {
 114         stq_p(env->external_htab + pte_offset, pte0);
 115     } else {
 116         stq_phys(cs->as, env->htab_base + pte_offset, pte0);
 117     }
 118 }
 119
 120 static inline void ppc_hash64_store_hpte1(CPUPPCState *env,
 121                                           hwaddr pte_offset, target_ulong pte1)
 122 {
 123     CPUState *cs = ENV_GET_CPU(env);
 124     if (env->external_htab) {
 125         stq_p(env->external_htab + pte_offset + HASH_PTE_SIZE_64/2, pte1);
 126     } else {
 127         stq_phys(cs->as,
 128                  env->htab_base + pte_offset + HASH_PTE_SIZE_64/2, pte1);
 129     }
 130 }
 131
 132 typedef struct {
 133     uint64_t pte0, pte1;
 134 } ppc_hash_pte64_t;
 135
 136 #endif /* CONFIG_USER_ONLY */
 137
 138 #endif /* !defined (__MMU_HASH64_H__) */