diff options
Diffstat (limited to 'target/ppc/mmu-radix64.h')
| -rw-r--r-- | target/ppc/mmu-radix64.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/target/ppc/mmu-radix64.h b/target/ppc/mmu-radix64.h new file mode 100644 index 0000000000..1d5c7cfea5 --- /dev/null +++ b/target/ppc/mmu-radix64.h @@ -0,0 +1,72 @@ +#ifndef MMU_RADIX64_H +#define MMU_RADIX64_H + +#ifndef CONFIG_USER_ONLY + +/* Radix Quadrants */ +#define R_EADDR_MASK 0x3FFFFFFFFFFFFFFF +#define R_EADDR_QUADRANT 0xC000000000000000 +#define R_EADDR_QUADRANT0 0x0000000000000000 +#define R_EADDR_QUADRANT1 0x4000000000000000 +#define R_EADDR_QUADRANT2 0x8000000000000000 +#define R_EADDR_QUADRANT3 0xC000000000000000 + +/* Radix Partition Table Entry Fields */ +#define PATBE1_R_PRTB 0x0FFFFFFFFFFFF000 +#define PATBE1_R_PRTS 0x000000000000001F + +/* Radix Process Table Entry Fields */ +#define PRTBE_R_GET_RTS(rts) \ + ((((rts >> 58) & 0x18) | ((rts >> 5) & 0x7)) + 31) +#define PRTBE_R_RPDB 0x0FFFFFFFFFFFFF00 +#define PRTBE_R_RPDS 0x000000000000001F + +/* Radix Page Directory/Table Entry Fields */ +#define R_PTE_VALID 0x8000000000000000 +#define R_PTE_LEAF 0x4000000000000000 +#define R_PTE_SW0 0x2000000000000000 +#define R_PTE_RPN 0x01FFFFFFFFFFF000 +#define R_PTE_SW1 0x0000000000000E00 +#define R_GET_SW(sw) (((sw >> 58) & 0x8) | ((sw >> 9) & 0x7)) +#define R_PTE_R 0x0000000000000100 +#define R_PTE_C 0x0000000000000080 +#define R_PTE_ATT 0x0000000000000030 +#define R_PTE_ATT_NORMAL 0x0000000000000000 +#define R_PTE_ATT_SAO 0x0000000000000010 +#define R_PTE_ATT_NI_IO 0x0000000000000020 +#define R_PTE_ATT_TOLERANT_IO 0x0000000000000030 +#define R_PTE_EAA_PRIV 0x0000000000000008 +#define R_PTE_EAA_R 0x0000000000000004 +#define R_PTE_EAA_RW 0x0000000000000002 +#define R_PTE_EAA_X 0x0000000000000001 +#define R_PDE_NLB PRTBE_R_RPDB +#define R_PDE_NLS PRTBE_R_RPDS + +#ifdef TARGET_PPC64 + +int ppc_radix64_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr, int rwx, + int mmu_idx); + +static inline int ppc_radix64_get_prot_eaa(uint64_t pte) +{ + return (pte & R_PTE_EAA_R ? PAGE_READ : 0) | + (pte & R_PTE_EAA_RW ? PAGE_READ | PAGE_WRITE : 0) | + (pte & R_PTE_EAA_X ? PAGE_EXEC : 0); +} + +static inline int ppc_radix64_get_prot_amr(PowerPCCPU *cpu) +{ + CPUPPCState *env = &cpu->env; + int amr = env->spr[SPR_AMR] >> 62; /* We only care about key0 AMR63:62 */ + int iamr = env->spr[SPR_IAMR] >> 62; /* We only care about key0 IAMR63:62 */ + + return (amr & 0x2 ? 0 : PAGE_WRITE) | /* Access denied if bit is set */ + (amr & 0x1 ? 0 : PAGE_READ) | + (iamr & 0x1 ? 0 : PAGE_EXEC); +} + +#endif /* TARGET_PPC64 */ + +#endif /* CONFIG_USER_ONLY */ + +#endif /* MMU_RADIX64_H */ |