linux-kernel - Re: [PATCH] x86/microcode: Document the three loading methods

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] [day] [month] [year] [list]

Message-ID: <20170718074217.GA8372@nazgul.tnic>
Date:   Tue, 18 Jul 2017 09:42:17 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Dominik Brodowski <linux@...inikbrodowski.net>
Cc:     X86 ML <x86@...nel.org>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86/microcode: Document the three loading methods

On Tue, Jul 18, 2017 at 08:27:54AM +0200, Dominik Brodowski wrote:
> What about: "... microcode in (uncompressed) cpio format followed by the
> (possibly compressed) initrd image", to clarify this distinction?

Meh.

> What about something more fancy, such as
> 	iucode_tool -v /lib/firmware/intel-ucode/ -S $DSTDIR/GenuineIntel.bin
> ?

Why, because fancy is better? And simple is not good enough?

The less we rely on special tools for kernel stuff, the better.

> Maybe specify here that this works using the firmware infrastructure,
> therefore the microcode will be loaded from /lib/firmware/ ? Basically the
> same terms apply for this method as for the builtin microcode you describe
> next.

The distro package already installs it into /lib/firmware but ok, I'll
note the path explicitly.

Thx.

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
--