diff options
author | Edgar E. Iglesias <edgar.iglesias@xilinx.com> | 2015-10-26 14:02:03 +0100 |
---|---|---|
committer | Peter Maydell <peter.maydell@linaro.org> | 2015-10-27 15:59:47 +0000 |
commit | e14b5a23d8c83304559f31397f95d22ada60a19a (patch) | |
tree | a72d80e39e3223ff51c72939cb5f2a7c8b5fed24 | |
parent | af51f566ec7106d5e834476e78681a7b354f3c7c (diff) |
target-arm: Add ARMMMUFaultInfo
Introduce ARMMMUFaultInfo to propagate MMU Fault information
across the MMU translation code path. This is in preparation for
adding Stage-2 translation.
No functional changes.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1445864527-14520-11-git-send-email-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r-- | target-arm/helper.c | 32 | ||||
-rw-r--r-- | target-arm/internals.h | 15 | ||||
-rw-r--r-- | target-arm/op_helper.c | 3 |
3 files changed, 36 insertions, 14 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c index 4f6098b235..3142761157 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -18,7 +18,8 @@ static bool get_phys_addr(CPUARMState *env, target_ulong address, int access_type, ARMMMUIdx mmu_idx, hwaddr *phys_ptr, MemTxAttrs *attrs, int *prot, - target_ulong *page_size, uint32_t *fsr); + target_ulong *page_size, uint32_t *fsr, + ARMMMUFaultInfo *fi); /* Definitions for the PMCCNTR and PMCR registers */ #define PMCRD 0x8 @@ -1778,9 +1779,10 @@ static uint64_t do_ats_write(CPUARMState *env, uint64_t value, bool ret; uint64_t par64; MemTxAttrs attrs = {}; + ARMMMUFaultInfo fi = {}; ret = get_phys_addr(env, value, access_type, mmu_idx, - &phys_addr, &attrs, &prot, &page_size, &fsr); + &phys_addr, &attrs, &prot, &page_size, &fsr, &fi); if (extended_addresses_enabled(env)) { /* fsr is a DFSR/IFSR value for the long descriptor * translation table format, but with WnR always clear. @@ -6231,7 +6233,8 @@ static uint64_t arm_ldq_ptw(CPUState *cs, hwaddr addr, bool is_secure) static bool get_phys_addr_v5(CPUARMState *env, uint32_t address, int access_type, ARMMMUIdx mmu_idx, hwaddr *phys_ptr, int *prot, - target_ulong *page_size, uint32_t *fsr) + target_ulong *page_size, uint32_t *fsr, + ARMMMUFaultInfo *fi) { CPUState *cs = CPU(arm_env_get_cpu(env)); int code; @@ -6344,7 +6347,8 @@ do_fault: static bool get_phys_addr_v6(CPUARMState *env, uint32_t address, int access_type, ARMMMUIdx mmu_idx, hwaddr *phys_ptr, MemTxAttrs *attrs, int *prot, - target_ulong *page_size, uint32_t *fsr) + target_ulong *page_size, uint32_t *fsr, + ARMMMUFaultInfo *fi) { CPUState *cs = CPU(arm_env_get_cpu(env)); int code; @@ -6554,7 +6558,8 @@ static bool check_s2_startlevel(ARMCPU *cpu, bool is_aa64, int level, static bool get_phys_addr_lpae(CPUARMState *env, target_ulong address, int access_type, ARMMMUIdx mmu_idx, hwaddr *phys_ptr, MemTxAttrs *txattrs, int *prot, - target_ulong *page_size_ptr, uint32_t *fsr) + target_ulong *page_size_ptr, uint32_t *fsr, + ARMMMUFaultInfo *fi) { ARMCPU *cpu = arm_env_get_cpu(env); CPUState *cs = CPU(cpu); @@ -7129,7 +7134,8 @@ static bool get_phys_addr_pmsav5(CPUARMState *env, uint32_t address, static bool get_phys_addr(CPUARMState *env, target_ulong address, int access_type, ARMMMUIdx mmu_idx, hwaddr *phys_ptr, MemTxAttrs *attrs, int *prot, - target_ulong *page_size, uint32_t *fsr) + target_ulong *page_size, uint32_t *fsr, + ARMMMUFaultInfo *fi) { if (mmu_idx == ARMMMUIdx_S12NSE0 || mmu_idx == ARMMMUIdx_S12NSE1) { /* TODO: when we support EL2 we should here call ourselves recursively @@ -7188,13 +7194,13 @@ static bool get_phys_addr(CPUARMState *env, target_ulong address, if (regime_using_lpae_format(env, mmu_idx)) { return get_phys_addr_lpae(env, address, access_type, mmu_idx, phys_ptr, - attrs, prot, page_size, fsr); + attrs, prot, page_size, fsr, fi); } else if (regime_sctlr(env, mmu_idx) & SCTLR_XP) { return get_phys_addr_v6(env, address, access_type, mmu_idx, phys_ptr, - attrs, prot, page_size, fsr); + attrs, prot, page_size, fsr, fi); } else { return get_phys_addr_v5(env, address, access_type, mmu_idx, phys_ptr, - prot, page_size, fsr); + prot, page_size, fsr, fi); } } @@ -7203,7 +7209,8 @@ static bool get_phys_addr(CPUARMState *env, target_ulong address, * fsr with ARM DFSR/IFSR fault register format value on failure. */ bool arm_tlb_fill(CPUState *cs, vaddr address, - int access_type, int mmu_idx, uint32_t *fsr) + int access_type, int mmu_idx, uint32_t *fsr, + ARMMMUFaultInfo *fi) { ARMCPU *cpu = ARM_CPU(cs); CPUARMState *env = &cpu->env; @@ -7214,7 +7221,7 @@ bool arm_tlb_fill(CPUState *cs, vaddr address, MemTxAttrs attrs = {}; ret = get_phys_addr(env, address, access_type, mmu_idx, &phys_addr, - &attrs, &prot, &page_size, fsr); + &attrs, &prot, &page_size, fsr, fi); if (!ret) { /* Map a single [sub]page. */ phys_addr &= TARGET_PAGE_MASK; @@ -7237,9 +7244,10 @@ hwaddr arm_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) bool ret; uint32_t fsr; MemTxAttrs attrs = {}; + ARMMMUFaultInfo fi = {}; ret = get_phys_addr(env, addr, 0, cpu_mmu_index(env, false), &phys_addr, - &attrs, &prot, &page_size, &fsr); + &attrs, &prot, &page_size, &fsr, &fi); if (ret) { return -1; diff --git a/target-arm/internals.h b/target-arm/internals.h index 8bd37eba65..412827bcbf 100644 --- a/target-arm/internals.h +++ b/target-arm/internals.h @@ -414,8 +414,21 @@ bool arm_is_psci_call(ARMCPU *cpu, int excp_type); void arm_handle_psci_call(ARMCPU *cpu); #endif +/** + * ARMMMUFaultInfo: Information describing an ARM MMU Fault + * @s2addr: Address that caused a fault at stage 2 + * @stage2: True if we faulted at stage 2 + * @s1ptw: True if we faulted at stage 2 while doing a stage 1 page-table walk + */ +typedef struct ARMMMUFaultInfo ARMMMUFaultInfo; +struct ARMMMUFaultInfo { + target_ulong s2addr; + bool stage2; + bool s1ptw; +}; + /* Do a page table walk and add page to TLB if possible */ bool arm_tlb_fill(CPUState *cpu, vaddr address, int rw, int mmu_idx, - uint32_t *fsr); + uint32_t *fsr, ARMMMUFaultInfo *fi); #endif diff --git a/target-arm/op_helper.c b/target-arm/op_helper.c index 7929c71b43..86a6d038c7 100644 --- a/target-arm/op_helper.c +++ b/target-arm/op_helper.c @@ -83,8 +83,9 @@ void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx, { bool ret; uint32_t fsr = 0; + ARMMMUFaultInfo fi = {}; - ret = arm_tlb_fill(cs, addr, is_write, mmu_idx, &fsr); + ret = arm_tlb_fill(cs, addr, is_write, mmu_idx, &fsr, &fi); if (unlikely(ret)) { ARMCPU *cpu = ARM_CPU(cs); CPUARMState *env = &cpu->env; |