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[2001:4830:134:3::11]) by mx.google.com with ESMTPS id u84si20175599qkl.122.2015.10.27.07.34.58 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Tue, 27 Oct 2015 07:34:58 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 2001:4830:134:3::11 as permitted sender) client-ip=2001:4830:134:3::11; Authentication-Results: mx.google.com; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 2001:4830:134:3::11 as permitted sender) smtp.mailfrom=qemu-devel-bounces+patch=linaro.org@nongnu.org Received: from localhost ([::1]:60027 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zr5Kz-00031q-Ol for patch@linaro.org; Tue, 27 Oct 2015 10:34:57 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56754) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zr5Je-0001Uk-DL for qemu-devel@nongnu.org; Tue, 27 Oct 2015 10:33:36 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Zr5Jb-0007Ts-Sl for qemu-devel@nongnu.org; Tue, 27 Oct 2015 10:33:34 -0400 Received: from mnementh.archaic.org.uk ([2001:8b0:1d0::1]:35203) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zr5Jb-0007SU-JA for qemu-devel@nongnu.org; Tue, 27 Oct 2015 10:33:31 -0400 Received: from pm215 by mnementh.archaic.org.uk with local (Exim 4.80) (envelope-from ) id 1Zr5Ja-0000Vd-O1 for qemu-devel@nongnu.org; Tue, 27 Oct 2015 14:33:30 +0000 From: Peter Maydell To: qemu-devel@nongnu.org Date: Tue, 27 Oct 2015 14:33:25 +0000 Message-Id: <1445956409-1818-24-git-send-email-peter.maydell@linaro.org> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1445956409-1818-1-git-send-email-peter.maydell@linaro.org> References: <1445956409-1818-1-git-send-email-peter.maydell@linaro.org> X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2001:8b0:1d0::1 Subject: [Qemu-devel] [PULL 23/27] target-arm: Add ARMMMUFaultInfo X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org From: "Edgar E. Iglesias" 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 Signed-off-by: Edgar E. Iglesias Message-id: 1445864527-14520-11-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell --- target-arm/helper.c | 32 ++++++++++++++++++++------------ target-arm/internals.h | 15 ++++++++++++++- target-arm/op_helper.c | 3 ++- 3 files changed, 36 insertions(+), 14 deletions(-) -- 1.9.1 diff --git a/target-arm/helper.c b/target-arm/helper.c index 4f6098b..3142761 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 8bd37eb..412827b 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 7929c71..86a6d03 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;