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author | Richard Henderson <richard.henderson@linaro.org> | 2022-06-08 19:38:49 +0100 |
---|---|---|
committer | Peter Maydell <peter.maydell@linaro.org> | 2022-06-08 19:38:49 +0100 |
commit | 9a12fb366d442751603dc91ab5c5f9b7c828c783 (patch) | |
tree | 899bcebf4e9601547e5a82749e0505f11c97d519 | |
parent | 53c038efb7a634dd5b6ede8eb034791c0dc83f43 (diff) | |
download | qemu-9a12fb366d442751603dc91ab5c5f9b7c828c783.zip qemu-9a12fb366d442751603dc91ab5c5f9b7c828c783.tar.gz qemu-9a12fb366d442751603dc91ab5c5f9b7c828c783.tar.bz2 |
target/arm: Move get_phys_addr_pmsav5 to ptw.c
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220604040607.269301-6-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r-- | target/arm/helper.c | 85 | ||||
-rw-r--r-- | target/arm/ptw.c | 85 | ||||
-rw-r--r-- | target/arm/ptw.h | 4 |
3 files changed, 85 insertions, 89 deletions
diff --git a/target/arm/helper.c b/target/arm/helper.c index 4a58822..5d01019 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -12274,91 +12274,6 @@ bool get_phys_addr_pmsav8(CPUARMState *env, uint32_t address, return ret; } -bool get_phys_addr_pmsav5(CPUARMState *env, uint32_t address, - MMUAccessType access_type, ARMMMUIdx mmu_idx, - hwaddr *phys_ptr, int *prot, - ARMMMUFaultInfo *fi) -{ - int n; - uint32_t mask; - uint32_t base; - bool is_user = regime_is_user(env, mmu_idx); - - if (regime_translation_disabled(env, mmu_idx)) { - /* MPU disabled. */ - *phys_ptr = address; - *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC; - return false; - } - - *phys_ptr = address; - for (n = 7; n >= 0; n--) { - base = env->cp15.c6_region[n]; - if ((base & 1) == 0) { - continue; - } - mask = 1 << ((base >> 1) & 0x1f); - /* Keep this shift separate from the above to avoid an - (undefined) << 32. */ - mask = (mask << 1) - 1; - if (((base ^ address) & ~mask) == 0) { - break; - } - } - if (n < 0) { - fi->type = ARMFault_Background; - return true; - } - - if (access_type == MMU_INST_FETCH) { - mask = env->cp15.pmsav5_insn_ap; - } else { - mask = env->cp15.pmsav5_data_ap; - } - mask = (mask >> (n * 4)) & 0xf; - switch (mask) { - case 0: - fi->type = ARMFault_Permission; - fi->level = 1; - return true; - case 1: - if (is_user) { - fi->type = ARMFault_Permission; - fi->level = 1; - return true; - } - *prot = PAGE_READ | PAGE_WRITE; - break; - case 2: - *prot = PAGE_READ; - if (!is_user) { - *prot |= PAGE_WRITE; - } - break; - case 3: - *prot = PAGE_READ | PAGE_WRITE; - break; - case 5: - if (is_user) { - fi->type = ARMFault_Permission; - fi->level = 1; - return true; - } - *prot = PAGE_READ; - break; - case 6: - *prot = PAGE_READ; - break; - default: - /* Bad permission. */ - fi->type = ARMFault_Permission; - fi->level = 1; - return true; - } - *prot |= PAGE_EXEC; - return false; -} - /* Combine either inner or outer cacheability attributes for normal * memory, according to table D4-42 and pseudocode procedure * CombineS1S2AttrHints() of ARM DDI 0487B.b (the ARMv8 ARM). diff --git a/target/arm/ptw.c b/target/arm/ptw.c index 6a1f4b5..5c32648 100644 --- a/target/arm/ptw.c +++ b/target/arm/ptw.c @@ -289,6 +289,91 @@ do_fault: return true; } +static bool get_phys_addr_pmsav5(CPUARMState *env, uint32_t address, + MMUAccessType access_type, ARMMMUIdx mmu_idx, + hwaddr *phys_ptr, int *prot, + ARMMMUFaultInfo *fi) +{ + int n; + uint32_t mask; + uint32_t base; + bool is_user = regime_is_user(env, mmu_idx); + + if (regime_translation_disabled(env, mmu_idx)) { + /* MPU disabled. */ + *phys_ptr = address; + *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC; + return false; + } + + *phys_ptr = address; + for (n = 7; n >= 0; n--) { + base = env->cp15.c6_region[n]; + if ((base & 1) == 0) { + continue; + } + mask = 1 << ((base >> 1) & 0x1f); + /* Keep this shift separate from the above to avoid an + (undefined) << 32. */ + mask = (mask << 1) - 1; + if (((base ^ address) & ~mask) == 0) { + break; + } + } + if (n < 0) { + fi->type = ARMFault_Background; + return true; + } + + if (access_type == MMU_INST_FETCH) { + mask = env->cp15.pmsav5_insn_ap; + } else { + mask = env->cp15.pmsav5_data_ap; + } + mask = (mask >> (n * 4)) & 0xf; + switch (mask) { + case 0: + fi->type = ARMFault_Permission; + fi->level = 1; + return true; + case 1: + if (is_user) { + fi->type = ARMFault_Permission; + fi->level = 1; + return true; + } + *prot = PAGE_READ | PAGE_WRITE; + break; + case 2: + *prot = PAGE_READ; + if (!is_user) { + *prot |= PAGE_WRITE; + } + break; + case 3: + *prot = PAGE_READ | PAGE_WRITE; + break; + case 5: + if (is_user) { + fi->type = ARMFault_Permission; + fi->level = 1; + return true; + } + *prot = PAGE_READ; + break; + case 6: + *prot = PAGE_READ; + break; + default: + /* Bad permission. */ + fi->type = ARMFault_Permission; + fi->level = 1; + return true; + } + *prot |= PAGE_EXEC; + return false; +} + /** * get_phys_addr - get the physical address for this virtual address * diff --git a/target/arm/ptw.h b/target/arm/ptw.h index 349b842..324a9dd 100644 --- a/target/arm/ptw.h +++ b/target/arm/ptw.h @@ -33,10 +33,6 @@ simple_ap_to_rw_prot(CPUARMState *env, ARMMMUIdx mmu_idx, int ap) return simple_ap_to_rw_prot_is_user(ap, regime_is_user(env, mmu_idx)); } -bool get_phys_addr_pmsav5(CPUARMState *env, uint32_t address, - MMUAccessType access_type, ARMMMUIdx mmu_idx, - hwaddr *phys_ptr, int *prot, - ARMMMUFaultInfo *fi); bool get_phys_addr_pmsav7(CPUARMState *env, uint32_t address, MMUAccessType access_type, ARMMMUIdx mmu_idx, hwaddr *phys_ptr, int *prot, |