* Re: [PATCH v2] PCI: Add func1 DMA quirk for Marvell 88SE9125 SATA controller [not found] <YZPA+gSsGWI6+xBP@work> @ 2021-11-17 10:12 ` Christoph Hellwig 2021-11-17 14:15 ` Alex Williamson 0 siblings, 1 reply; 2+ messages in thread From: Christoph Hellwig @ 2021-11-17 10:12 UTC (permalink / raw) To: Yifeng Li; +Cc: Bjorn Helgaas, linux-pci, linux-kernel, kvm 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? ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH v2] PCI: Add func1 DMA quirk for Marvell 88SE9125 SATA controller 2021-11-17 10:12 ` [PATCH v2] PCI: Add func1 DMA quirk for Marvell 88SE9125 SATA controller Christoph Hellwig @ 2021-11-17 14:15 ` Alex Williamson 0 siblings, 0 replies; 2+ messages in thread From: Alex Williamson @ 2021-11-17 14:15 UTC (permalink / raw) To: Christoph Hellwig; +Cc: Yifeng Li, Bjorn Helgaas, linux-pci, linux-kernel, kvm On Wed, 17 Nov 2021 02:12:04 -0800 Christoph Hellwig <hch@infradead.org> wrote: > 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? No, the alias is taken into account with grouping and IOMMU programming, it should work with vfio. Thanks, Alex ^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-11-17 10:12 ` [PATCH v2] PCI: Add func1 DMA quirk for Marvell 88SE9125 SATA controller Christoph Hellwig
2021-11-17 14:15 ` Alex Williamson
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