From: Catalin Marinas <catalin.marinas@arm.com>
To: Mark Rutland <mark.rutland@arm.com>,
linux-arm-kernel@lists.infradead.org
Cc: Will Deacon <will@kernel.org>,
maz@kernel.org, james.morse@arm.com, joey.gouly@arm.com
Subject: Re: [PATCH 0/4] arm64: entry: rework user return handling
Date: Thu, 5 Aug 2021 14:38:56 +0100 [thread overview]
Message-ID: <162817061093.16854.7299387625427703505.b4-ty@arm.com> (raw)
In-Reply-To: <20210802140733.52716-1-mark.rutland@arm.com>
On Mon, 2 Aug 2021 15:07:29 +0100, Mark Rutland wrote:
> These patches (based on v5.14-rc3) rework the arm64 entry code,
> converting the bulk of `ret_to_user` and `work_pending` assembly code to
> C. This simplifies the code, and ensure that for each exception there is
> a single assembly<->c transition, which may make it easier to handle
> backtracing in future if metadata is necessary.
>
> The bulk of the additions are comments added in patch 2, which clarify
> the semantics of some helpers functions used during entry/exit.
>
> [...]
Applied to arm64 (for-next/entry). There was a small conflict in entry.S
with the changes from the for-next/mte branch - clear_mte_async_tcf
macro call moved around. I also fixed the typos that Joey mentioned.
Please have a look to make sure everthing is still ok. Thanks!
[1/4] arm64: entry: consolidate entry/exit helpers
https://git.kernel.org/arm64/c/46a2b02d232e
[2/4] arm64: entry: clarify entry/exit helpers
https://git.kernel.org/arm64/c/bc29b71f53b1
[3/4] arm64: entry: move bulk of ret_to_user to C
https://git.kernel.org/arm64/c/4d1c2ee2709f
[4/4] arm64: entry: call exit_to_user_mode() from C
https://git.kernel.org/arm64/c/e130338eed5d
--
Catalin
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prev parent reply other threads:[~2021-08-05 13:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-02 14:07 [PATCH 0/4] arm64: entry: rework user return handling Mark Rutland
2021-08-02 14:07 ` [PATCH 1/4] arm64: entry: consolidate entry/exit helpers Mark Rutland
2021-08-03 12:07 ` Joey Gouly
2021-08-02 14:07 ` [PATCH 2/4] arm64: entry: clarify " Mark Rutland
2021-08-03 11:53 ` Joey Gouly
2021-08-02 14:07 ` [PATCH 3/4] arm64: entry: move bulk of ret_to_user to C Mark Rutland
2021-08-03 12:06 ` Joey Gouly
2021-08-02 14:07 ` [PATCH 4/4] arm64: entry: call exit_to_user_mode() from C Mark Rutland
2021-08-03 12:17 ` Joey Gouly
2021-08-05 13:38 ` Catalin Marinas [this message]
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