From e04a5752cb03e066d7b1e583e340c7982fcd5e4e Mon Sep 17 00:00:00 2001 From: =?utf8?q?R=C3=A9mi=20Denis-Courmont?= Date: Tue, 12 Jan 2021 12:44:56 +0200 Subject: [PATCH] target/arm: use arm_hcr_el2_eff() where applicable MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This will simplify accessing HCR conditionally in secure state. Signed-off-by: Rémi Denis-Courmont Reviewed-by: Richard Henderson Message-id: 20210112104511.36576-4-remi.denis.courmont@huawei.com Signed-off-by: Peter Maydell --- target/arm/helper.c | 31 ++++++++++++++++++------------- 1 file changed, 18 insertions(+), 13 deletions(-) diff --git a/target/arm/helper.c b/target/arm/helper.c index ae208ab00f..30b4dde6dd 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -4433,16 +4433,16 @@ static CPAccessResult aa64_cacheop_pou_access(CPUARMState *env, static int vae1_tlbmask(CPUARMState *env) { - /* Since we exclude secure first, we may read HCR_EL2 directly. */ - if (arm_is_secure_below_el3(env)) { - return ARMMMUIdxBit_SE10_1 | - ARMMMUIdxBit_SE10_1_PAN | - ARMMMUIdxBit_SE10_0; - } else if ((env->cp15.hcr_el2 & (HCR_E2H | HCR_TGE)) - == (HCR_E2H | HCR_TGE)) { + uint64_t hcr = arm_hcr_el2_eff(env); + + if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { return ARMMMUIdxBit_E20_2 | ARMMMUIdxBit_E20_2_PAN | ARMMMUIdxBit_E20_0; + } else if (arm_is_secure_below_el3(env)) { + return ARMMMUIdxBit_SE10_1 | + ARMMMUIdxBit_SE10_1_PAN | + ARMMMUIdxBit_SE10_0; } else { return ARMMMUIdxBit_E10_1 | ARMMMUIdxBit_E10_1_PAN | @@ -9965,6 +9965,8 @@ static inline uint64_t regime_sctlr(CPUARMState *env, ARMMMUIdx mmu_idx) static inline bool regime_translation_disabled(CPUARMState *env, ARMMMUIdx mmu_idx) { + uint64_t hcr_el2; + if (arm_feature(env, ARM_FEATURE_M)) { switch (env->v7m.mpu_ctrl[regime_is_secure(env, mmu_idx)] & (R_V7M_MPU_CTRL_ENABLE_MASK | R_V7M_MPU_CTRL_HFNMIENA_MASK)) { @@ -9983,19 +9985,21 @@ static inline bool regime_translation_disabled(CPUARMState *env, } } + hcr_el2 = arm_hcr_el2_eff(env); + if (mmu_idx == ARMMMUIdx_Stage2) { /* HCR.DC means HCR.VM behaves as 1 */ - return (env->cp15.hcr_el2 & (HCR_DC | HCR_VM)) == 0; + return (hcr_el2 & (HCR_DC | HCR_VM)) == 0; } - if (env->cp15.hcr_el2 & HCR_TGE) { + if (hcr_el2 & HCR_TGE) { /* TGE means that NS EL0/1 act as if SCTLR_EL1.M is zero */ if (!regime_is_secure(env, mmu_idx) && regime_el(env, mmu_idx) == 1) { return true; } } - if ((env->cp15.hcr_el2 & HCR_DC) && arm_mmu_idx_is_stage1_of_2(mmu_idx)) { + if ((hcr_el2 & HCR_DC) && arm_mmu_idx_is_stage1_of_2(mmu_idx)) { /* HCR.DC means SCTLR_EL1.M behaves as 0 */ return true; } @@ -10346,7 +10350,8 @@ static hwaddr S1_ptw_translate(CPUARMState *env, ARMMMUIdx mmu_idx, fi->s1ptw = true; return ~0; } - if ((env->cp15.hcr_el2 & HCR_PTW) && (cacheattrs.attrs & 0xf0) == 0) { + if ((arm_hcr_el2_eff(env) & HCR_PTW) && + (cacheattrs.attrs & 0xf0) == 0) { /* * PTW set and S1 walk touched S2 Device memory: * generate Permission fault. @@ -10779,7 +10784,7 @@ static uint8_t convert_stage2_attrs(CPUARMState *env, uint8_t s2attrs) uint8_t hihint = 0, lohint = 0; if (hiattr != 0) { /* normal memory */ - if ((env->cp15.hcr_el2 & HCR_CD) != 0) { /* cache disabled */ + if (arm_hcr_el2_eff(env) & HCR_CD) { /* cache disabled */ hiattr = loattr = 1; /* non-cacheable */ } else { if (hiattr != 1) { /* Write-through or write-back */ @@ -12112,7 +12117,7 @@ bool get_phys_addr(CPUARMState *env, target_ulong address, } /* Combine the S1 and S2 cache attributes. */ - if (env->cp15.hcr_el2 & HCR_DC) { + if (arm_hcr_el2_eff(env) & HCR_DC) { /* * HCR.DC forces the first stage attributes to * Normal Non-Shareable, -- 2.11.4.GIT