From: Catalin Marinas <catalin.marinas@arm.com>
To: Kostya Serebryany <kcc@google.com>,
Florian Weimer <fw@deneb.enyo.de>,
Peter Collingbourne <pcc@google.com>,
Evgenii Stepanov <eugenis@google.com>,
Dave Martin <Dave.Martin@arm.com>,
Szabolcs Nagy <szabolcs.nagy@arm.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
Andrey Konovalov <andreyknvl@google.com>,
libc-alpha@sourceware.org, Kevin Brodsky <kevin.brodsky@arm.com>,
linux-api@vger.kernel.org
Subject: Re: [PATCH v8 1/3] arm64: mte: make the per-task SCTLR_EL1 field usable elsewhere
Date: Wed, 14 Apr 2021 11:10:19 +0100 [thread overview]
Message-ID: <161839488327.21932.16461913261970131291.b4-ty@arm.com> (raw)
In-Reply-To: <13d725cb8e741950fb9d6e64b2cd9bd54ff7c3f9.1616123271.git.pcc@google.com>
On Thu, 18 Mar 2021 20:10:52 -0700, Peter Collingbourne wrote:
> In an upcoming change we are going to introduce per-task SCTLR_EL1
> bits for PAC. Move the existing per-task SCTLR_EL1 field out of the
> MTE-specific code so that we will be able to use it from both the
> PAC and MTE code paths and make the task switching code more efficient.
Applied to arm64 (for-next/pac-set-get-enabled-keys).
Peter, can you please have a look and give it a try as part of the arm64
for-next/core branch? I rebased your patches on top of the
for-next/mte-async-kernel-mode branch as this was adding more code to
mte_thread_switch(), so I kept the function for now.
Thanks.
[1/3] arm64: mte: make the per-task SCTLR_EL1 field usable elsewhere
https://git.kernel.org/arm64/c/2f79d2fc391e
[2/3] arm64: Introduce prctl(PR_PAC_{SET,GET}_ENABLED_KEYS)
https://git.kernel.org/arm64/c/201698626fbc
[3/3] arm64: pac: Optimize kernel entry/exit key installation code paths
https://git.kernel.org/arm64/c/b90e483938ce
--
Catalin
next prev parent reply other threads:[~2021-04-14 10:10 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-19 3:10 [PATCH v8 1/3] arm64: mte: make the per-task SCTLR_EL1 field usable elsewhere Peter Collingbourne
2021-03-19 3:10 ` [PATCH v8 2/3] arm64: Introduce prctl(PR_PAC_{SET,GET}_ENABLED_KEYS) Peter Collingbourne
2021-03-19 3:10 ` [PATCH v8 3/3] arm64: pac: Optimize kernel entry/exit key installation code paths Peter Collingbourne
2021-04-14 10:10 ` Catalin Marinas [this message]
2021-04-16 16:20 ` [PATCH v8 1/3] arm64: mte: make the per-task SCTLR_EL1 field usable elsewhere Peter Collingbourne
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