Re: [Qemu-arm] [Qemu-devel] [RFC v3 0/8] VIRTIO-IOMMU device

[Auger Eric]

Hi Linu, Jean,

On 17/08/2017 15:39, Jean-Philippe Brucker wrote:
> Hi Linu,
> 
> On 17/08/17 12:26, Linu Cherian wrote:
>> Hi Eric,
>>
>> On Tue Aug 01, 2017 at 11:33:06AM +0200, Eric Auger wrote:
>>> This series implements the virtio-iommu device.
>>>
>>> This v3 mostly is a rebase on top of v2.10-rc0 that uses
>>> IOMMUMmeoryRegion plus some small fixes.
>>>
>>> This is a proof of concept based on the virtio-iommu specification
>>> written by Jean-Philippe Brucker [1].
>>>
>>> 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.
>>>
>>> ACPI booting is not yet supported.
>>>
>>> Best Regards
>>>
>>> Eric
>>>
>>> This series can be found at:
>>> https://github.com/eauger/qemu/tree/v2.10.0-rc0-virtio-iommu-rfcv3
>>>
>>> References:
>>> [1] [RFC 0/3] virtio-iommu: a paravirtualized IOMMU,
>>> [2] [RFC PATCH linux] iommu: Add virtio-iommu driver
>>> [3] [RFC PATCH kvmtool 00/15] Add virtio-iommu
>>>
>>> Testing:
>>> - >= 4.12 guest kernel + virtio-iommu driver [2]
>>> - guest using a virtio-net-pci device:
>>>   ,vhost=off,iommu_platform,disable-modern=off,disable-legacy=on
>>
>> Was trying to test this out and facing issues.
>> Guest and Host Kernel - git://linux-arm.org/linux-jpb.git, Branch 
>> virtio-iommu/v0.4
>> Qemu - As mentioned above.
> 
> Could you try branch virtio-iommu/v0.1? It contains the UAPI headers
> compatible with this RFC.
Thank you Jean. Yes the QEMU virtio-iommu device is based on the first
user API written in [2]. I plan to rebase on v0.4 in short delay. Jean
can I rebase on virtio-iommu/v0.4 or shall I wait a bit more?

Thanks

Eric
> 
> Thanks,
> Jean
>