linux-kernel - Re: [PATCH 0/5] x86/pkeys: PKRU manipulation bug fixes and cleanups

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Message-ID: <875yz27p3p.ffs@nanos.tec.linutronix.de>
Date:   Fri, 28 May 2021 19:19:38 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Andy Lutomirski <luto@...nel.org>,
        Dave Hansen <dave.hansen@...el.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>, linux-mm@...ck.org
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        the arch/x86 maintainers <x86@...nel.org>, shuah@...nel.org,
        Babu Moger <babu.moger@....com>, dave.kleikamp@...cle.com,
        linuxram@...ibm.com, bauerman@...ux.ibm.com
Subject: Re: [PATCH 0/5] x86/pkeys: PKRU manipulation bug fixes and cleanups

On Fri, May 28 2021 at 10:13, Andy Lutomirski wrote:
> On Fri, May 28, 2021, at 9:11 AM, Dave Hansen wrote:
>> I have a few concerns about moving away from XSAVE management, though.
>> I'm not nixing the whole idea, but there are some things we need to resolve.
>> 
>> First is that there _may_ be ABI concerns.  
>
> I tend to think that, for -stable, we should fix the bug without an ABI change.

See my other mail. It's trivial enough to do.