linux-kernel - Re: [PATCH v3 05/21] x86/fpu/xstate: Add a new variable to indicate dynamic user states

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ECD78824-BE93-4D84-B5F6-C5D4BF9441C6@intel.com>
Date:   Wed, 27 Jan 2021 01:23:26 +0000
From:   "Bae, Chang Seok" <chang.seok.bae@...el.com>
To:     Borislav Petkov <bp@...e.de>
CC:     Andy Lutomirski <luto@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>, x86-ml <x86@...nel.org>,
        "Brown, Len" <len.brown@...el.com>,
        "Hansen, Dave" <dave.hansen@...el.com>,
        "Liu, Jing2" <jing2.liu@...el.com>,
        "Shankar, Ravi V" <ravi.v.shankar@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 05/21] x86/fpu/xstate: Add a new variable to indicate
 dynamic user states

On Jan 22, 2021, at 02:56, Borislav Petkov <bp@...e.de> wrote:
> On Tue, Jan 19, 2021 at 06:57:26PM +0000, Bae, Chang Seok wrote:
>> This series attempts to save the AMX state in the context switch buffer only
> 
> What is the context switch buffer?
> 
> I think you mean simply the xstate per-task buffer which is switched on
> context switches...

Yes, I will use ‘xstate per-task buffer’ instead of it.

>> How about the changelog message like this:
>> 
>> "
>> The context switch buffer is in preparation to be dynamic for user states.

s/context switch/xstate per-task/

Thanks,
Chan