Re: [PATCH v2 00/11] Connect VFIO to IOMMUFD

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On Mon, Nov 14, 2022 at 08:51:58PM +0800, Yi Liu wrote:

> Our side, Yu He, Lixiao Yang has done below tests on Intel platform with
> the above kernel, results are:
> 
> 1) GVT-g test suit passed, Intel iGFx passthrough passed.
> 
> 2) NIC passthrough test with different guest memory (1G/4G), passed.
> 
> 3) Booting two different QEMUs in the same time but one QEMU opens
> legacy /dev/vfio/vfio and another opens /dev/iommu. Tests passed.
> 
> 4) Tried below Kconfig combinations, results are expected.
> 
> VFIO_CONTAINER=y, IOMMUFD=y   -- test pass
> VFIO_CONTAINER=y, IOMMUFD=n   -- test pass
> VFIO_CONTAINER=n, IOMMUFD=y , IOMMUFD_VFIO_CONTAINER=y  -- test pass
> VFIO_CONTAINER=n, IOMMUFD=y , IOMMUFD_VFIO_CONTAINER=n  -- no
> /dev/vfio/vfio, so test fail, expected
> 
> 5) Tested devices from multi-device group. Assign such devices to the same
> VM, pass; assign them to different VMs, fail; assign them to a VM with Intel
> virtual VT-d, fail; Results are expected.
> 
> Meanwhile, I also tested the branch in development branch for nesting,
> the basic functionality looks good.
> 
> Tested-by: Yi Liu <yi.l.liu@xxxxxxxxx>

Great thanks!

In future I also recommend running tests with the CONFIG_IOMMUFD_TEST
turned on, it enables a bunch more fast path assertions that might
catch something interesting

Jason



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