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[Xen-devel] Using arch/x86_64/pci-dma in x86_64 Xen
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-devel] Using arch/x86_64/pci-dma in x86_64 Xen |
| From: | "Langsdorf, Mark" <mark.langsdorf@xxxxxxx> |
| Date: | Thu, 4 May 2006 09:57:35 -0500 |
| Delivery-date: | Thu, 04 May 2006 07:58:05 -0700 |
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| Thread-topic: | Using arch/x86_64/pci-dma in x86_64 Xen |
The current implementation of pci-dma in x86_64 Xen Linux is to use the i386 implementation. I don't believe this is sustainable in the long term, as x86_64 Xen is going to need more DMA solutions than just SWIOTLB and plain hardware as various IOMMU implementations arrive. The mainstream kernel has a clean abstraction layer with the dma_ops that should be portable to Xen dom0 and domU. I've started implementing this in a pci-dma-xen for x86_64 Xen Linux. Am I stepping on anyone's toes or is there anyone I should be co-ordinating this with? -Mark Langsdorf AMD, Inc. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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