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([172.58.111.133]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-30b8e3c9b32sm71031fac.24.2025.08.02.16.30.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 02 Aug 2025 16:30:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1754177421; x=1754782221; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=H1X7tRIlbeJs7+JRFY3gIthkRvi/ERSg1idEqFWeh8k=; b=jToFdCTNL33DzQYf406yArFDaRlxtkPw6rdhKrz9O3IlphyimUT17GDqfY5tredpF/ wft2sZqr9XHxJ7Xk3IamlyNMX/5HNs7nDkt1ggckKTcCi/uVtJR/yXDwPbu5glOPD4z3 4p2PWu0p8xd0rCLRhaMaqb9UsHglFUn/YN4VTkG+KLalgBr+/8S7kw0TsrZ0cghPo6a1 V6qcKMvPm2bMIi0JAvQuPlp7T6bPu49Ob7DYDLFMcpk1pQxiuImwq/hF6DIPVTF9FZ41 msGIYxRvP5f73M9azSfmbtnpo/rTEqjEiQLa+nZj5epWsvFl3KNLgNFn5ta5vjrdS46n mmUg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1754177421; x=1754782221; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=H1X7tRIlbeJs7+JRFY3gIthkRvi/ERSg1idEqFWeh8k=; b=YIhQBIWHBwohBhcwIcUyFe5OsyAklEczz9Jyyb3Vluok/sx9xUKjlIEy7tkLy62iQD YBEcuv1s0/mf+Skq4V2tIO6sSCHv6DHLiDUcWukycJjb3Z9tpvGQNGtlMkwbGn8hPMV7 ZuW1ZVzIarpE5L7SLOW3rce3XOLD8WDdx7Pli+zBWCIv197cy4ydU/45OpMV+nie4HXB 5Nu0Ce75adUKS5muGEjaPpuutLPDNuB0KlD3tcAqx9jKzsimrJ5pdRj2byrFvjiaFDkv kO852dhGJhOI7LY9dR7OuwG+DPBxtkonGyAJTyzgJGB80QCZ43E9yFrvtd3t00oyi1v1 kzlQ== X-Gm-Message-State: AOJu0Yxa6z88Rpm3wHMCleTS2ZOsMnNIegINm38rmPU4JTX1kAFawfdR kOzGkxPmKQxmSTElmIlEPYNQBgOtKR+srx+rqHo241W96/4tcikpOmhZOVHKfXJ9RBnVqCEGP7c 1ihrAXm4= X-Gm-Gg: ASbGncvHAQqUJgiCZEiUqS57Z2IQIqh8/6K9mnqszYshs/Ipzg8zwcnPql6cE04Srs4 O+gYmUFZfEoUYBbdrJyS35TkkJLR0OuCUrTuk86EiLGWBjRpn2pvO5koX8kPcUm1F/TOAq1MWFl quDw0HazlD4TkvG+Z2o3KUtWSFeO1syy1FFtL//PJo62WceT6e7soevUf48l5PRtq/6BMt2xtRT eUU1Ekkg0HwATexoPwVLLOFagn1JkuVPYnd+JkR0gFz+MpM8UA1nSLUBE9ueah7+FUUZL9u9LHE h3IvZxK6+Q8Qo8qLai1zu8ohefNzRWaVYMhzs8I7ulw0+am4YiR9mZpsiGS2alGEvNQYAopyxS6 dXukBN6xgSv2Bu6bGwsytFnLRcyUqBWtpiHvDKaNZdv+qXL2I622N X-Google-Smtp-Source: AGHT+IHygjNW+d2R1dy85V2oE9VABBsZH3ztf6vNeH4dc9MrqYXjrdiLEVL7/J02fmLa2jkZywQsbw== X-Received: by 2002:a05:6870:1e8e:b0:2d6:245:a9b3 with SMTP id 586e51a60fabf-30b6755af2amr2513407fac.6.1754177421237; Sat, 02 Aug 2025 16:30:21 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, Pierrick Bouvier Subject: [PATCH v2 04/85] target/arm: Add prot_check parameter to pmsav8_mpu_lookup Date: Sun, 3 Aug 2025 09:28:32 +1000 Message-ID: <20250802232953.413294-5-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250802232953.413294-1-richard.henderson@linaro.org> References: <20250802232953.413294-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::329; envelope-from=richard.henderson@linaro.org; helo=mail-ot1-x329.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1754177721212116600 Content-Type: text/plain; charset="utf-8" Separate the access_type from the protection check. Reviewed-by: Pierrick Bouvier Signed-off-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- target/arm/internals.h | 5 +++-- target/arm/ptw.c | 11 ++++++----- target/arm/tcg/m_helper.c | 4 ++-- 3 files changed, 11 insertions(+), 9 deletions(-) diff --git a/target/arm/internals.h b/target/arm/internals.h index 118659815f..326b5a73cf 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -1626,8 +1626,9 @@ bool get_phys_addr_with_space_nogpc(CPUARMState *env,= vaddr address, __attribute__((nonnull)); =20 bool pmsav8_mpu_lookup(CPUARMState *env, uint32_t address, - MMUAccessType access_type, ARMMMUIdx mmu_idx, - bool is_secure, GetPhysAddrResult *result, + MMUAccessType access_type, unsigned prot_check, + ARMMMUIdx mmu_idx, bool is_secure, + GetPhysAddrResult *result, ARMMMUFaultInfo *fi, uint32_t *mregion); =20 void arm_log_exception(CPUState *cs); diff --git a/target/arm/ptw.c b/target/arm/ptw.c index 561bf2678e..a914e7e23c 100644 --- a/target/arm/ptw.c +++ b/target/arm/ptw.c @@ -2561,8 +2561,9 @@ static uint32_t *regime_rlar(CPUARMState *env, ARMMMU= Idx mmu_idx, } =20 bool pmsav8_mpu_lookup(CPUARMState *env, uint32_t address, - MMUAccessType access_type, ARMMMUIdx mmu_idx, - bool secure, GetPhysAddrResult *result, + MMUAccessType access_type, unsigned prot_check, + ARMMMUIdx mmu_idx, bool secure, + GetPhysAddrResult *result, ARMMMUFaultInfo *fi, uint32_t *mregion) { /* @@ -2750,7 +2751,7 @@ bool pmsav8_mpu_lookup(CPUARMState *env, uint32_t add= ress, if (arm_feature(env, ARM_FEATURE_M)) { fi->level =3D 1; } - return !(result->f.prot & (1 << access_type)); + return (prot_check & ~result->f.prot) !=3D 0; } =20 static bool v8m_is_sau_exempt(CPUARMState *env, @@ -2952,8 +2953,8 @@ static bool get_phys_addr_pmsav8(CPUARMState *env, } } =20 - ret =3D pmsav8_mpu_lookup(env, address, access_type, mmu_idx, secure, - result, fi, NULL); + ret =3D pmsav8_mpu_lookup(env, address, access_type, 1 << access_type, + mmu_idx, secure, result, fi, NULL); if (sattrs.subpage) { result->f.lg_page_size =3D 0; } diff --git a/target/arm/tcg/m_helper.c b/target/arm/tcg/m_helper.c index 28307b5615..d856e3bc8e 100644 --- a/target/arm/tcg/m_helper.c +++ b/target/arm/tcg/m_helper.c @@ -2829,8 +2829,8 @@ uint32_t HELPER(v7m_tt)(CPUARMState *env, uint32_t ad= dr, uint32_t op) ARMMMUFaultInfo fi =3D {}; =20 /* We can ignore the return value as prot is always set */ - pmsav8_mpu_lookup(env, addr, MMU_DATA_LOAD, mmu_idx, targetsec, - &res, &fi, &mregion); + pmsav8_mpu_lookup(env, addr, MMU_DATA_LOAD, PAGE_READ, mmu_idx, + targetsec, &res, &fi, &mregion); if (mregion =3D=3D -1) { mrvalid =3D false; mregion =3D 0; --=20 2.43.0