target/ppc/mmu-radix64.h

   1 #ifndef MMU_RADIX64_H
   2 #define MMU_RADIX64_H
   3
   4 #ifndef CONFIG_USER_ONLY
   5
   6 /* Radix Quadrants */
   7 #define R_EADDR_MASK            0x3FFFFFFFFFFFFFFF
   8 #define R_EADDR_QUADRANT        0xC000000000000000
   9 #define R_EADDR_QUADRANT0       0x0000000000000000
  10 #define R_EADDR_QUADRANT1       0x4000000000000000
  11 #define R_EADDR_QUADRANT2       0x8000000000000000
  12 #define R_EADDR_QUADRANT3       0xC000000000000000
  13
  14 /* Radix Partition Table Entry Fields */
  15 #define PATBE1_R_PRTB           0x0FFFFFFFFFFFF000
  16 #define PATBE1_R_PRTS           0x000000000000001F
  17
  18 /* Radix Process Table Entry Fields */
  19 #define PRTBE_R_GET_RTS(rts) \
  20     ((((rts >> 58) & 0x18) | ((rts >> 5) & 0x7)) + 31)
  21 #define PRTBE_R_RPDB            0x0FFFFFFFFFFFFF00
  22 #define PRTBE_R_RPDS            0x000000000000001F
  23
  24 /* Radix Page Directory/Table Entry Fields */
  25 #define R_PTE_VALID             0x8000000000000000
  26 #define R_PTE_LEAF              0x4000000000000000
  27 #define R_PTE_SW0               0x2000000000000000
  28 #define R_PTE_RPN               0x01FFFFFFFFFFF000
  29 #define R_PTE_SW1               0x0000000000000E00
  30 #define R_GET_SW(sw)            (((sw >> 58) & 0x8) | ((sw >> 9) & 0x7))
  31 #define R_PTE_R                 0x0000000000000100
  32 #define R_PTE_C                 0x0000000000000080
  33 #define R_PTE_ATT               0x0000000000000030
  34 #define R_PTE_ATT_NORMAL        0x0000000000000000
  35 #define R_PTE_ATT_SAO           0x0000000000000010
  36 #define R_PTE_ATT_NI_IO         0x0000000000000020
  37 #define R_PTE_ATT_TOLERANT_IO   0x0000000000000030
  38 #define R_PTE_EAA_PRIV          0x0000000000000008
  39 #define R_PTE_EAA_R             0x0000000000000004
  40 #define R_PTE_EAA_RW            0x0000000000000002
  41 #define R_PTE_EAA_X             0x0000000000000001
  42 #define R_PDE_NLB               PRTBE_R_RPDB
  43 #define R_PDE_NLS               PRTBE_R_RPDS
  44
  45 #ifdef TARGET_PPC64
  46
  47 int ppc_radix64_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr, int rwx,
  48                                  int mmu_idx);
  49
  50 static inline int ppc_radix64_get_prot_eaa(uint64_t pte)
  51 {
  52     return (pte & R_PTE_EAA_R ? PAGE_READ : 0) |
  53            (pte & R_PTE_EAA_RW ? PAGE_READ | PAGE_WRITE : 0) |
  54            (pte & R_PTE_EAA_X ? PAGE_EXEC : 0);
  55 }
  56
  57 static inline int ppc_radix64_get_prot_amr(PowerPCCPU *cpu)
  58 {
  59     CPUPPCState *env = &cpu->env;
  60     int amr = env->spr[SPR_AMR] >> 62; /* We only care about key0 AMR63:62 */
  61     int iamr = env->spr[SPR_IAMR] >> 62; /* We only care about key0 IAMR63:62 */
  62
  63     return (amr & 0x2 ? 0 : PAGE_WRITE) | /* Access denied if bit is set */
  64            (amr & 0x1 ? 0 : PAGE_READ) |
  65            (iamr & 0x1 ? 0 : PAGE_EXEC);
  66 }
  67
  68 #endif /* TARGET_PPC64 */
  69
  70 #endif /* CONFIG_USER_ONLY */
  71
  72 #endif /* MMU_RADIX64_H */