Re: [PATCH v5 00/19] Add vfio_device cdev for iommufd support

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On 2/28/23 9:29 PM, Nicolin Chen wrote:
> On Tue, Feb 28, 2023 at 04:58:06PM +0000, Xu, Terrence wrote:
> 
>> Verified this series by "Intel GVT-g GPU device mediated passthrough" and "Intel GVT-d GPU device direct passthrough" technologies.
>> Both passed VFIO legacy mode / compat mode / cdev mode, including negative tests.
>>
>> Tested-by: Terrence Xu <terrence.xu@xxxxxxxxx>
> 
> Sanity-tested this series on ARM64 with my wip branch:
> https://github.com/nicolinc/iommufd/commits/wip/iommufd-v6.2-nesting
> (Covering new iommufd and vfio-compat)
> 
> Tested-by: Nicolin Chen <nicolinc@xxxxxxxxxx>

Tested a few different flavors of this series on s390 (I grabbed the most recent v6 copy from github):

legacy (IOMMUFD=n): vfio-pci, vfio-ccw, vfio-ap
compat (CONFIG_IOMMUFD_VFIO_CONTAINER=y): vfio-pci, vfio-ccw, vfio-ap
compat+cdev+group (VFIO_DEVICE_CDEV=y && VFIO_GROUP=y): vfio-pci (over cdev using Yi's qemu branch as well as via group), vfio-ccw and vfio-ap via group
compat+cdev-only (VFIO_DEVICE_CDEV=y && VFIO_GROUP=n): vfio-pci using Yi's qemu branch

Tested-by: Matthew Rosato <mjrosato@xxxxxxxxxxxxx>



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