From: Yeoreum Yun <yeoreum.yun@arm.com>
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 <yeoreum.yun@arm.com>
Subject: [PATCH 0/3] support FEAT_MTE_STORE_ONLY feature
Date: Thu, 3 Apr 2025 15:27:04 +0100 [thread overview]
Message-ID: <20250403142707.26397-1-yeoreum.yun@arm.com> (raw)
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}
next reply other threads:[~2025-04-03 14:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-03 14:27 Yeoreum Yun [this message]
2025-04-03 14:27 ` [PATCH 1/3] arm64/feature: add MTE_STORE_ONLY feature Yeoreum Yun
2025-04-03 15:30 ` Mark Brown
2025-04-03 17:39 ` Yeoreum Yun
2025-04-03 14:27 ` [PATCH 2/3] prtcl: introduce PR_MTE_STORE_ONLY Yeoreum Yun
2025-04-03 14:27 ` [PATCH 3/3] arm64/kernel: support store-only mte tag check Yeoreum Yun
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