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Date: Sun, 16 Apr 2023 08:41:56 +0200
From: Christoph Hellwig <hch@lst.de>
To: Robin Murphy <robin.murphy@arm.com>
Cc: Christoph Hellwig <hch@lst.de>,
	Linux regressions mailing list <regressions@lists.linux.dev>,
	LKML <linux-kernel@vger.kernel.org>,
	Linux PCI <linux-pci@vger.kernel.org>, iommu@lists.linux.dev,
	baolu.lu@linux.intel.com
Subject: Re: [regression] Bug 217218 - Trying to boot Linux version 6-2.2
 kernel with Marvell SATA controller 88SE9235
Message-ID: <20230416064156.GA6410@lst.de>
References: <a79ea7f5-6a41-a6c9-cfec-ba01aa2a3cfa@leemhuis.info> <20230328012231.GB21977@lst.de> <01c50370-002d-5e18-3edc-81c9527aedc9@arm.com>
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On Thu, Mar 30, 2023 at 01:18:45PM +0100, Robin Murphy wrote:
> FWIW "Marvell SATA" instantly makes me suspect the phantom function quirk. 
> What *should* happen is the IOMMU driver sees the PCI DMA aliases correctly 
> and sets up context entries for both 07.00.0 and 07.00.1, but it looks like 
> that may be what's gone awry.

Looking at the bug report it seems this is device 9235, which doesn't
need the DMA alias quirks.