linux-kernel - Re: [PATCH] PR_SPEC_DISABLE

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Message-ID: <20200921110020.GA2139@willie-the-truck>
Date:   Mon, 21 Sep 2020 12:00:21 +0100
From:   Will Deacon <will@...nel.org>
To:     Anthony Steinhauser <asteinhauser@...gle.com>
Cc:     LKML <linux-kernel@...r.kernel.org>, catalin.marinas@....com,
        maz@...nel.org
Subject: Re: [PATCH] PR_SPEC_DISABLE_NOEXEC support for arm64.

Hi Anthony,

On Sun, Sep 20, 2020 at 03:25:23AM -0700, Anthony Steinhauser wrote:
> > As a heads up: I'm currently reworking most of this, and hope to post
> > something within the next two weeks.
> 
> Sure. Let me know whether you want to implement the
> PR_SPEC_DISABLE_NOEXEC support directly or whether this patch would be
> relevant even after your rework.

I posted a first cut at the rework on Friday:

http://lists.infradead.org/pipermail/linux-arm-kernel/2020-September/602709.html

so maybe you could take a look at implementing PR_SPEC_DISABLE_NOEXEC
on top of that? If not, please let me know and I can look into it as I
think it should be reasonably straightforward.

Will