Re: [PATCH v2] arm64: compat: Implement misalignment fixups for multiword loads
- To: linux-arm-kernel@lists.infradead.org, Ard Biesheuvel <ardb@kernel.org>
- Cc: Will Deacon <will@kernel.org>, debian-arm@lists.debian.org, Riku Voipio <riku.voipio@iki.fi>, broonie@kernel.org, Vagrant Cascadian <vagrant@debian.org>, arnd@arndb.de, maz@kernel.org, mark.rutland@arm.com, Steve McIntyre <steve@einval.com>
- Subject: Re: [PATCH v2] arm64: compat: Implement misalignment fixups for multiword loads
- From: Catalin Marinas <catalin.marinas@arm.com>
- Date: Tue, 6 Sep 2022 18:45:58 +0100
- Message-id: <[🔎] 166248634944.3559400.6408871481644138648.b4-ty@arm.com>
- In-reply-to: <20220701135322.3025321-1-ardb@kernel.org>
- References: <20220701135322.3025321-1-ardb@kernel.org>
On Fri, 1 Jul 2022 15:53:22 +0200, Ard Biesheuvel wrote:
> The 32-bit ARM kernel implements fixups on behalf of user space when
> using LDM/STM or LDRD/STRD instructions on addresses that are not 32-bit
> aligned. This is not something that is supported by the architecture,
> but was done anyway to increase compatibility with user space software,
> which mostly targeted x86 at the time and did not care about aligned
> accesses.
>
> [...]
Applied to arm64 (for-next/misc), thanks!
[1/1] arm64: compat: Implement misalignment fixups for multiword loads
https://git.kernel.org/arm64/c/3fc24ef32d3b
--
Catalin
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