linux-kernel - Re: [PATCH v2] PCI: Add func1 DMA quirk for Marvell 88SE9125 SATA controller

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Message-ID: <YZTVdOlEbMb0tv59@infradead.org>
Date:   Wed, 17 Nov 2021 02:12:04 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Yifeng Li <tomli@...li.me>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH v2] PCI: Add func1 DMA quirk for Marvell 88SE9125 SATA
 controller

On Tue, Nov 16, 2021 at 02:32:26PM +0000, Yifeng Li wrote:
> Like other SATA controller chips in the Marvell 88SE91xx series, the
> Marvell 88SE9125 has the same DMA requester ID hardware bug that prevents
> it from working under IOMMU. This patch adds its device ID 0x9125 to the
> Function 1 DMA alias quirk list.

Btw, do we need to prevent vfio assignment for all devices with this
quirk?