linux-kernel - Re: [RT] [RFC] simple SMI detector

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: <1232919517.1326.7.camel@jcmlaptop>
Date:	Sun, 25 Jan 2009 16:38:37 -0500
From:	Jon Masters <jonathan@...masters.org>
To:	Sven-Thorsten Dietrich <sdietrich@...ell.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Lee Revell <rlrevell@...-job.com>,
	linux-rt-users@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	williams <williams@...hat.com>,
	"Luis Claudio R. Goncalves" <lgoncalv@...hat.com>
Subject: Re: [RT] [RFC] simple SMI detector

On Sun, 2009-01-25 at 13:12 +1100, Sven-Thorsten Dietrich wrote:

> I envision documentation of these specs, in a similar fashion to the
> manner in which CPU clock-cycles are documented for specific instruction
> executions - for those systems eligible (certified?) for low-latency
> operation.

I'd love to see a generic API that OS's could use to interface with
BIOS-level SMI implementations. Something provided in ACPI data. For all
I know, there already is something generic, but I've not heard of it?
It'd be really nice to have generic functions like:

disable_random_vendor_extensions_crap()
disable_all_non_essential_smis()

or whatever else.

> Providing benchmarking tools is definitely an excellent step in that
> direction (imo) - thanks.

Yeah. The more of this stuff, the better I think. So if someone wants to
help me polish what I posted then cool - it's in our "MRG" internal tree
already in the current form since we're only using it for debugging now.

Jon.


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/