linux-kernel - Re: iommu breaks usb after resume

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Message-ID: <20080327114923.GA6589@basil.nowhere.org>
Date:	Thu, 27 Mar 2008 12:49:23 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Pavel Machek <pavel@....cz>
Cc:	Ingo Molnar <mingo@...e.hu>, Andi Kleen <andi@...stfloor.org>,
	kernel list <linux-kernel@...r.kernel.org>,
	Greg KH <greg@...ah.com>, "Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: iommu breaks usb after resume

> ...this sounds like it needs to be done during resume, too, no?

This is only a workaround for BIOS that don't set up an aperture,
but yes if they don't do that it is likely needed on resume too.

You would need to add a resume handler to aperture.c

-Andi
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