Messages in this thread | | | Date | Mon, 10 Sep 2018 10:53:16 +0200 | From | Gerd Hoffmann <> | Subject | Re: [RFC 0/4] Virtio uses DMA API for all devices |
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> > this to set the VIRTIO_F_IOMMU_PLATFORM flag. But for example > > QEMU has the use of iommu_platform attribute disabled for virtio-gpu > > device. So would also like to move towards not having to specify > > the VIRTIO_F_IOMMU_PLATFORM flag. > > Specifying VIRTIO_F_IOMMU_PLATFORM is the right thing for your > platform given that you can't directly use physical addresses. > Please fix qemu so that virtio-gpu works with VIRTIO_F_IOMMU_PLATFORM.
This needs both host and guest side changes btw.
Guest side patch is in drm-misc (a3b815f09bb8) and should land in the next merge window.
Host side patches are here: https://git.kraxel.org/cgit/qemu/log/?h=sirius/virtio-gpu-iommu
Should also land in the next qemu version.
cheers, Gerd
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