linux-kernel - Re: Intel IOMMU (and IOMMU for Virtualization) performances

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Message-ID: <87lk1fqayg.fsf@basil.nowhere.org>
Date:	Mon, 09 Jun 2008 10:17:11 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	"Grant Grundler" <grundler@...gle.com>
Cc:	"Muli Ben-Yehuda" <muli@...ibm.com>,
	"FUJITA Tomonori" <fujita.tomonori@....ntt.co.jp>,
	linux-kernel@...r.kernel.org, mgross@...ux.intel.com,
	linux-scsi@...r.kernel.org
Subject: Re: Intel IOMMU (and IOMMU for Virtualization) performances

"Grant Grundler" <grundler@...gle.com> writes:
>
> The historical DMA mapping "failure mode" is a kernel panic.  Resizing or

Hasn't been for a long time, except in some extreme cases.  All drivers
are expected to check return values for a long time now.

-Andi
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