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| From: | Paul Brook |
| Subject: | Re: [Qemu-devel] [PATCH 00/35] Alpha system emulation, v4 |
| Date: | Tue, 10 May 2011 22:33:28 +0100 |
| User-agent: | KMail/1.13.5 (Linux/2.6.38-2-amd64; KDE/4.4.5; x86_64; ; ) |
> Since virtio devices intentionally access memory directly, we > are not actually dependant on the iommu patches in order to > make progress. Merely fixing the PCI interrupt setup was > enough to get the virtio-pci interface working. There should be nothing special about virtio-pci. These devices should access memory in exactly the same way as any other PCI device. Bypassing the normal PCI iommu is IMO a serious bug. Paul
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