linux-kernel - Re: [Bugfix v4 1/2] iommu/amd: Prevent binding other PCI drivers to IOMMU PCI devices

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Message-ID: <20151009155644.GG27420@8bytes.org>
Date:	Fri, 9 Oct 2015 17:56:45 +0200
From:	Joerg Roedel <joro@...tes.org>
To:	Jiang Liu <jiang.liu@...ux.intel.com>
Cc:	Borislav Petkov <bp@...en8.de>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Daniel Vetter <daniel@...ll.ch>,
	Alex Deucher <alexdeucher@...il.com>,
	Christian Knig <christian.koenig@....com>,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-iommu@...r.kernel.org, linux-acpi@...r.kernel.org,
	x86@...nel.org
Subject: Re: [Bugfix v4 1/2] iommu/amd: Prevent binding other PCI drivers to
 IOMMU PCI devices

On Fri, Oct 09, 2015 at 10:07:31PM +0800, Jiang Liu wrote:
> AMD IOMMU driver makes use of IOMMU PCI devices, so prevent binding other
> PCI drivers to IOMMU PCI devices.
> 
> This fixes a bug reported by Boris that system suspend/resume gets broken
> on AMD platforms. For more information, please refer to:
> 	https://lkml.org/lkml/2015/9/26/89
> 
> Fixes: 991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()")
> Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
> Cc: Borislav Petkov <bp@...en8.de>

Applied to iommu/fixes, thanks Jiang.

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