On Wed, 6 Mar 2024 10:33:17 +0000 Ankit Agrawal <ank...@nvidia.com> wrote:
> >> >> Jonathan, Alex, do you know how we may add tests that is dependent > >> >> on the vfio-pci device? > >> > > >> > There are none. > >> > > >> > This would require a host device always available for passthrough and > >> > there is no simple solution for this problem. Such tests would need to > >> > run in a nested environment under avocado: a pc/virt machine with an > >> > igb device and use the PF and/or VFs to check device assignment in a > >> > nested guests. > >> > > >> > PPC just introduced new tests to check nested guest support on two > >> > different HV implementations. If you have time, please take a look > >> > at tests/avocado/ppc_hv_tests.py for the framework. > >> > > >> > I will try to propose a new test when I am done with the reviews, > >> > not before 9.0 soft freeze though. > >> > >> Thanks for the information. As part of this patch, I'll leave out > >> this test change then. > > > > For BIOS table purposes it can be any PCI device. I've been testing > > this with a virtio-net-pci but something like virtio-rng-pci will > > do fine. The table contents doesn't care if it's vfio or not. > > Thanks, I was able to work this out with the virtio-rng-pci device. > > > I can spin a test as part of the follow up Generic Port series that > > incorporates both and pushes the limits of the hmat code in general. > > Current tests are too tame ;) > > Sure, that is fine by me. > FYI, this is how the test change looked like in case you were wondering. Looks good as a starting point. Ideally I'd like HMAT + a few bandwidth and latency values so we test that GIs work with that as well part. Think you'd just need "-machine hmat=on " //some values for cpu to local memory "-numa hmat-lb,initiator=0,target=0,hierarchy-memory,data-type=access_latency,latency=10" "-numa hmat-lb,initiator=0,target=0,hierarchy-memory,data-type=access_bandwidth,bandwidth=10G" //some values for the GI node to main memory. "-numa hmat-lb,initiator=1,target=0,hierarchy-memory,data-type=access_latency,latency=200" "-numa hmat-lb,initiator=1,target=0,hierarchy-memory,data-type=access_bandwidth,bandwidth=5G"
