LXR qemu/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 PATE1_R_PRTB           0x0FFFFFFFFFFFF000
  16#define PATE1_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
  47bool ppc_radix64_xlate(PowerPCCPU *cpu, vaddr eaddr, MMUAccessType access_type,
  48                       hwaddr *raddr, int *psizep, int *protp, int mmu_idx,
  49                       bool guest_visible);
  50
  51static inline int ppc_radix64_get_prot_eaa(uint64_t pte)
  52{
  53    return (pte & R_PTE_EAA_R ? PAGE_READ : 0) |
  54           (pte & R_PTE_EAA_RW ? PAGE_READ | PAGE_WRITE : 0) |
  55           (pte & R_PTE_EAA_X ? PAGE_EXEC : 0);
  56}
  57
  58static inline int ppc_radix64_get_prot_amr(const PowerPCCPU *cpu)
  59{
  60    const CPUPPCState *env = &cpu->env;
  61    int amr = env->spr[SPR_AMR] >> 62; /* We only care about key0 AMR63:62 */
  62    int iamr = env->spr[SPR_IAMR] >> 62; /* We only care about key0 IAMR63:62 */
  63
  64    return (amr & 0x2 ? 0 : PAGE_WRITE) | /* Access denied if bit is set */
  65           (amr & 0x1 ? 0 : PAGE_READ) |
  66           (iamr & 0x1 ? 0 : PAGE_EXEC);
  67}
  68
  69#endif /* TARGET_PPC64 */
  70
  71#endif /* CONFIG_USER_ONLY */
  72
  73#endif /* MMU_RADIX64_H */
  74