From: Peter Zijlstra <peterz@infradead.org>
To: Keith Mannthey <kmannth@us.ibm.com>
Cc: lkml <linux-kernel@vger.kernel.org>, John Stultz <johnstul@us.ibm.com>
Subject: Re: [RFC][Patch] IBM Real-Time "SMI Free" mode drive -v2
Date: Thu, 17 Dec 2009 00:09:24 +0100 [thread overview]
Message-ID: <1261004964.21028.521.camel@laptop> (raw)
In-Reply-To: <1260907788.6521.10.camel@keith-laptop>
On Tue, 2009-12-15 at 12:09 -0800, Keith Mannthey wrote:
> This driver supports the Real-Time Linux (RTL) BIOS feature. The RTL
> feature allows non-fatal System Management Interrupts (SMIs) to be
> disabled on supported IBM platforms.
>
>
> The Device is presented as a special "_rtl_" table to the OS in the
> Extended BIOS Data Area. There is a simple protocol for entering and
> exiting the mode at runtime. This driver creates a simple sysfs
> interface to allow a simple entry and exit from RTL mode in the
> UFI/BIOS.
Why not simply always run with these non-fatal SMIs disabled and provide
their function through the OS proper?
That way you don't need no silly switches and gain consistent platform
behaviour.
next prev parent reply other threads:[~2009-12-16 23:10 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-15 20:09 [RFC][Patch] IBM Real-Time "SMI Free" mode drive -v2 Keith Mannthey
2009-12-15 23:12 ` Randy Dunlap
2009-12-15 23:58 ` Keith Mannthey
2009-12-15 23:49 ` Jonathan Corbet
2009-12-16 0:09 ` Thomas Gleixner
2009-12-16 0:38 ` Keith Mannthey
2009-12-16 0:50 ` Jonathan Corbet
2009-12-16 0:02 ` Alan Cox
2009-12-17 2:09 ` Keith Mannthey
2009-12-16 23:09 ` Peter Zijlstra [this message]
2009-12-17 1:37 ` john stultz
2009-12-17 2:06 ` Keith Mannthey
2009-12-17 1:50 ` Keith Mannthey
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