From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 30CC224EA96 for ; Thu, 3 Apr 2025 14:27:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743690435; cv=none; b=UVq1pUAvab2hEpXLCn2EH+NIy4ig27UuVzrSq/bZEBRF5wQp0TXUSYlxG62mECKpVwrIMusInYJMLJp+5a1/+qLD6m+huDGGzIXA1Nl9uMZ/+0ONz61iWveeCC7AdlXAjffP9sPa7jCSPwWi0jIL8utzq62rMz8pKbeiJmlsZrw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743690435; c=relaxed/simple; bh=0G0dgMDGY/LnFiozwv0Qbw0fNXb52V06kGln700h4MM=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=Z9fI4Pjncgtj6KaYe9UDISvsHSsgRlOyRFE4wHdWxNO/j93yupvdsLBXAMuPpq2U8/9N5P6Q4Fa+sDJrZeu3jVF2whI9NnnZoASpcK44Mnlqs7+roWcsHKtl5RJoEMPdu62Yu/vvMGuhksIeIaf+UCU7Bn/X4ZUOOe5JMGPKAGY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id E1FEC339; Thu, 3 Apr 2025 07:27:15 -0700 (PDT) Received: from e129823.cambridge.arm.com (e129823.arm.com [10.1.197.6]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 753FE3F59E; Thu, 3 Apr 2025 07:27:09 -0700 (PDT) From: Yeoreum Yun To: catalin.marinas@arm.com, will@kernel.org, broonie@kernel.org, anshuman.khandual@arm.com, joey.gouly@arm.com, maz@kernel.org, oliver.upton@linux.dev, frederic@kernel.org, james.morse@arm.com, hardevsinh.palaniya@siliconsignals.io, shameerali.kolothum.thodi@huawei.com, huangxiaojia2@huawei.com, mark.rutland@arm.com, samuel.holland@sifive.com, palmer@rivosinc.com, charlie@rivosinc.com, thiago.bauermann@linaro.org, bgray@linux.ibm.com, tglx@linutronix.de, puranjay@kernel.org, david@redhat.com, yang@os.amperecomputing.com, mbenes@suse.cz, joel.granados@kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, nd@arm.com, Yeoreum Yun Subject: [PATCH 0/3] support FEAT_MTE_STORE_ONLY feature Date: Thu, 3 Apr 2025 15:27:04 +0100 Message-Id: <20250403142707.26397-1-yeoreum.yun@arm.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The FEAT_MTE_STORE_ONLY feature provides support for tag check for store operation only. read operation is considered as unchecked operation so it doesn't raise tag check fault. NOTE: This patches based on https://lore.kernel.org/all/20250403141535.23496-1-yeoreum.yun@arm.com/ Yeoreum Yun (3): arm64/feature: add MTE_STORE_ONLY feature prtcl: introduce PR_MTE_STORE_ONLY arm64/kernel: support store-only mte tag check arch/arm64/include/asm/hwcap.h | 1 + arch/arm64/include/asm/processor.h | 2 ++ arch/arm64/include/uapi/asm/hwcap.h | 1 + arch/arm64/kernel/cpufeature.c | 9 +++++++++ arch/arm64/kernel/cpuinfo.c | 1 + arch/arm64/kernel/mte.c | 11 ++++++++++- arch/arm64/kernel/process.c | 6 +++++- arch/arm64/tools/cpucaps | 1 + include/uapi/linux/prctl.h | 2 ++ 9 files changed, 32 insertions(+), 2 deletions(-) -- LEVI:{C3F47F37-75D8-414A-A8BA-3980EC8A46D7}