linux-kernel - Re: i686 quirk for AMD Geode

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: <40101cc30910022008r285fed55vbd92ba8854837cf2@mail.gmail.com>
Date:	Sat, 3 Oct 2009 05:08:02 +0200
From:	Matteo Croce <technoboy85@...il.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: i686 quirk for AMD Geode

On Sat, Oct 3, 2009 at 4:34 AM, H. Peter Anvin <hpa@...or.com> wrote:
> On 10/02/2009 07:12 PM, Matteo Croce wrote:
>> Hi,
>>
>> the AMD GEode LX has an x86 id of 5 (i586) tought it's technically an i686:
>>
>
> a) Wrong place - it should be in cpu/amd.c.
> b) You need to also make sure that it has FCOMI and the long NOP\
>   instructions.
>
>        -hpa
>
> --
> H. Peter Anvin, Intel Open Source Technology Center
> I work for Intel.  I don't speak on their behalf.
>
>

I've run the attached files and I get this:

root@...x:/usr/src# ./longnop
Long NOPs supported: no
root@...x:/usr/src# ./fcomi
Long FCOMi supported: yes

View attachment "longnop.c" of type "text/x-csrc" (346 bytes)

View attachment "fcomi.c" of type "text/x-csrc" (353 bytes)