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Re: [Qemu-arm] [RFC v4 00/16] VIRTIO-IOMMU device


From: Peter Maydell
Subject: Re: [Qemu-arm] [RFC v4 00/16] VIRTIO-IOMMU device
Date: Wed, 11 Oct 2017 15:56:59 +0100

On 19 September 2017 at 08:46, Eric Auger <address@hidden> wrote:
> This series implements the virtio-iommu device.
>
> This v4 is an upgrade to v0.4 spec [1] and applies on QEMU v2.10.0.
> - probe request support although no reserved region is returned at
>   the moment
> - unmap semantics less strict, as specified in v0.4
> - device registration, attach/detach revisited
> - split into smaller patches to ease review
> - propose a way to inform the IOMMU mr about the page_size_mask
>   of underlying HW IOMMU, if any
> - remove warning associated with the translation of the MSI doorbell
>
> The device gets instantiated using the "-device virtio-iommu-device"
> option. It currently works with ARM virt machine only, as the machine
> must handle the dt binding between the virtio-mmio "iommu" node and
> the PCI host bridge node.

Could this work on x86, or is it inherently arm-only?

thanks
-- PMM



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