linux-kernel - Re: [Patch] iommu/vt-d: fix bug in handling multiple RMRRs for the same PCI device

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Message-ID: <20140620122320.GJ31771@8bytes.org>
Date:	Fri, 20 Jun 2014 14:23:20 +0200
From:	Joerg Roedel <joro@...tes.org>
To:	Jiang Liu <jiang.liu@...ux.intel.com>
Cc:	David Woodhouse <dwmw2@...radead.org>,
	iommu@...ts.linux-foundation.org, linux-pci@...r.kernel.org,
	linux-hotplug@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [Patch] iommu/vt-d: fix bug in handling multiple RMRRs for the
 same PCI device

On Fri, Jun 20, 2014 at 03:08:06PM +0800, Jiang Liu wrote:
> Function dmar_iommu_notify_scope_dev() makes a wrong assumption that
> there's one RMRR for each PCI device at most, which causes DMA failure
> on some HP platforms. So enhance dmar_iommu_notify_scope_dev() to
> handle multiple RMRRs for the same PCI device.
> 
> Fixbug: https://bugzilla.novell.com/show_bug.cgi?id=879482
> 
> Cc: <stable@...r.kernel.org> # 3.15
> Reported-by: Tom Mingarelli <thomas.mingarelli@...com>
> Tested-by: Linda Knippers <linda.knippers@...com>
> Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>

Applied to iommu/fixes, thans Jiang.


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