linux-kernel - Re: [PATCH v2 8/8] riscv: add support for PR_SET_UNALIGN and PR_GET

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Message-ID: <871qeauwzc.fsf@all.your.base.are.belong.to.us>
Date:   Wed, 04 Oct 2023 19:19:03 +0200
From:   Björn Töpel <bjorn@...nel.org>
To:     Clément Léger <cleger@...osinc.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>
Cc:     Clément Léger <cleger@...osinc.com>,
        Atish Patra <atishp@...osinc.com>,
        Andrew Jones <ajones@...tanamicro.com>,
        Evan Green <evan@...osinc.com>,
        Björn Topel <bjorn@...osinc.com>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Ron Minnich <rminnich@...il.com>,
        Daniel Maslowski <cyrevolt@...glemail.com>,
        Conor Dooley <conor@...nel.org>
Subject: Re: [PATCH v2 8/8] riscv: add support for PR_SET_UNALIGN and
 PR_GET_UNALIGN

Clément Léger <cleger@...osinc.com> writes:

> Now that trap support is ready to handle misalignment errors in S-mode,
> allow the user to control the behavior of misaligned accesses using
> prctl(PR_SET_UNALIGN). Add an align_ctl flag in thread_struct which
> will be used to determine if we should SIGBUS the process or not on
> such fault.
>
> Signed-off-by: Clément Léger <cleger@...osinc.com>

Reviewed-by: Björn Töpel <bjorn@...osinc.com>