From: Will Deacon <will@kernel.org>
To: Andrea della Porta <andrea.porta@suse.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, nik.borisov@suse.com,
arnd@arndb.de, keescook@chromium.org
Subject: Re: [PATCH 0/4] arm64: Make Aarch32 compatibility enablement optional at boot
Date: Wed, 18 Oct 2023 13:27:30 +0100 [thread overview]
Message-ID: <20231018122729.GA18556@willie-the-truck> (raw)
In-Reply-To: <cover.1697614386.git.andrea.porta@suse.com>
Hi,
On Wed, Oct 18, 2023 at 01:13:18PM +0200, Andrea della Porta wrote:
> Aarch32 compatibility mode is enabled at compile time through
> CONFIG_COMPAT Kconfig option. This patchset lets 32-bit support
> (for both processes and syscalls) be enabled at boot time using
> a kernel parameter. Also, it provides a mean for distributions
> to set their own default without sacrificing compatibility support,
> that is users can override default behaviour through the kernel
> parameter.
I proposed something similar in the past:
https://lkml.kernel.org/linux-fsdevel/20210916131816.8841-1-will@kernel.org/
bu the conclusion there (see the reply from Kees) was that it was better
to either use existing seccomp mechanisms or add something to control
which binfmts can be loaded.
Will
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next prev parent reply other threads:[~2023-10-18 12:28 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-18 11:13 [PATCH 0/4] arm64: Make Aarch32 compatibility enablement optional at boot Andrea della Porta
2023-10-18 11:13 ` [PATCH 1/4] arm64: Introduce aarch32_enabled() Andrea della Porta
2023-10-18 11:13 ` [PATCH 2/4] arm64/process: Make loading of 32bit processes depend on aarch32_enabled() Andrea della Porta
2023-10-18 12:52 ` Mark Rutland
2023-10-19 12:38 ` Andrea della Porta
2023-10-19 14:27 ` Mark Rutland
2023-10-19 14:32 ` Andrea della Porta
2023-10-19 14:50 ` Mark Rutland, Will Deacon
2023-10-18 11:13 ` [PATCH 3/4] arm64/entry-common: Make Aarch32 syscalls' availability " Andrea della Porta
2023-10-18 12:57 ` Mark Rutland
2023-10-19 12:48 ` Andrea della Porta
2023-10-22 20:30 ` kernel test robot
2023-10-18 11:13 ` [PATCH 4/4] arm64: Make Aarch32 emulation boot time configurable Andrea della Porta
2023-10-18 13:02 ` Mark Rutland
2023-10-19 12:50 ` Andrea della Porta
2023-10-18 12:27 ` Will Deacon [this message]
2023-10-18 12:44 ` [PATCH 0/4] arm64: Make Aarch32 compatibility enablement optional at boot Arnd Bergmann
2023-10-19 10:52 ` Andrea della Porta
2023-10-19 11:41 ` Arnd Bergmann
2023-10-19 9:17 ` Andrea della Porta
2023-10-18 12:52 ` Mark Rutland
2023-10-19 12:34 ` Andrea della Porta
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