On 2022/11/10 00:57, Jason Gunthorpe wrote:
On Tue, Nov 08, 2022 at 11:18:03PM +0800, Yi Liu wrote:
On 2022/11/8 17:19, Nicolin Chen wrote:
On Mon, Nov 07, 2022 at 08:52:44PM -0400, Jason Gunthorpe wrote:
This is on github: https://github.com/jgunthorpe/linux/commits/vfio_iommufd
[...]
v2:
- Rebase to v6.1-rc3, v4 iommufd series
- Fixup comments and commit messages from list remarks
- Fix leaking of the iommufd for mdevs
- New patch to fix vfio modaliases when vfio container is disabled
- Add a dmesg once when the iommufd provided /dev/vfio/vfio is opened
to signal that iommufd is providing this
I've redone my previous sanity tests. Except those reported bugs,
things look fine. Once we fix those issues, GVT and other modules
can run some more stressful tests, I think.
our side is also starting test (gvt, nic passthrough) this version. need to
wait a while for the result.
I've updated the branches with the two functional fixes discussed on
the list plus all the doc updates.
I see, due to timzone, the kernel we grabbed is 37c9e6e44d77a, it has
slight diff in the scripts/kernel-doc compared with the latest commit
(6bb16a9c67769). I don't think it impacts the test.
https://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd.git/log/?h=for-next
(37c9e6e44d77a)
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>
--
Regards,
Yi Liu
