linux-kernel - Re: [PATCHv2 0/4] x86: 5-level related changes into decompression code

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:   Thu, 30 Nov 2017 11:14:02 +0100
From:   Borislav Petkov <bp@...e.de>
To:     "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Cc:     "Kirill A. Shutemov" <kirill@...temov.name>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andy Lutomirski <luto@...capital.net>,
        Cyrill Gorcunov <gorcunov@...nvz.org>,
        Andi Kleen <ak@...ux.intel.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCHv2 0/4] x86: 5-level related changes into decompression
 code

On Thu, Nov 30, 2017 at 10:31:31AM +0300, Kirill A. Shutemov wrote:
> On Wed, Nov 29, 2017 at 05:48:51PM +0000, Borislav Petkov wrote:
> > On Wed, Nov 29, 2017 at 08:08:31PM +0300, Kirill A. Shutemov wrote:
> > > We're really early in the boot -- startup_64 in decompression code -- and
> > > I don't know a way print a message there. Is there a way?
> > > 
> > > no_longmode handled by just hanging the machine. Is it enough for no_la57
> > > case too?
> > 
> > Patch pls.
> 
> The patch below on top of patch 2/4 from this patch would do the trick.
> 
> Please give it a shot.

Yap, that works. Thanks!

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--