linux-kernel - Re: [PATCH 2/6] s390: implement nospec

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]

Date:   Wed, 17 Jan 2018 13:41:54 +0100 (CET)
From:   Jiri Kosina <jikos@...nel.org>
To:     Martin Schwidefsky <schwidefsky@...ibm.com>
cc:     linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
        kvm@...r.kernel.org, Heiko Carstens <heiko.carstens@...ibm.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Cornelia Huck <cohuck@...hat.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jon Masters <jcm@...hat.com>,
        Marcus Meissner <meissner@...e.de>
Subject: Re: [PATCH 2/6] s390: implement nospec_[load|ptr]

On Wed, 17 Jan 2018, Martin Schwidefsky wrote:

> Implement nospec_load() and nospec_ptr() for s390 with the new
> gmb() barrier between the boundary condition and the load that
> may not be done speculatively.

FWIW the naming seems to be changing constantly. The latest patchset from 
Dan Williams [1] uses ifence_...().

[1] lkml.kernel.org/r/151586744180.5820.13215059696964205856.stgit@...llia2-desk3.amr.corp.intel.com

-- 
Jiri Kosina
SUSE Labs