From: Chris Wright <chrisw@sous-sol.org>
To: Guenter Roeck <linux@roeck-us.net>
Cc: Chris Wright <chrisw@sous-sol.org>,
Bjorn Helgaas <bhelgaas@google.com>,
David Woodhouse <dwmw2@infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"open list:INTEL IOMMU (VT-d)" <iommu@lists.linux-foundation.org>
Subject: Re: WARNING: at drivers/iommu/dmar.c:484 warn_invalid_dmar with Intel Motherboard
Date: Thu, 11 Jul 2013 12:00:54 -0700 [thread overview]
Message-ID: <20130711190054.GC24833@sequoia2.sous-sol.org> (raw)
In-Reply-To: <20130709234331.GA10833@roeck-us.net>
* Guenter Roeck (linux@roeck-us.net) wrote:
> On Tue, Jul 09, 2013 at 04:22:52PM -0700, Chris Wright wrote:
> > One thing I've seen is the BIOS zeroing the base register address when
> > VT-d is disabled in BIOS. So, Guenter, a "fix" may be simply enabling
> > VT-d in the BIOS.
> >
> Ah, yes, I think I may have that disabled. I'll check it tonight.
Did you find out if BIOS change fixed this?
thanks,
-chris
next prev parent reply other threads:[~2013-07-11 20:02 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-09 20:24 Guenter Roeck
2013-07-09 21:05 ` Bjorn Helgaas
2013-07-09 22:31 ` Guenter Roeck
2013-07-09 23:22 ` Chris Wright
2013-07-09 23:43 ` Guenter Roeck
2013-07-10 0:05 ` Chris Wright
2013-07-10 0:18 ` Guenter Roeck
2013-07-10 0:53 ` David Woodhouse
2013-07-10 3:55 ` Guenter Roeck
2013-07-11 19:00 ` Chris Wright [this message]
2013-07-11 20:59 ` Guenter Roeck
2013-07-11 22:31 ` Chris Wright
2013-08-14 9:36 ` Joerg Roedel
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