Re: [PATCH bpf-next v2 05/28] selftests/bpf: add tests for the HID-bpf initial implementation

On Sat, Mar 5, 2022 at 1:41 AM Song Liu song@kernel.org wrote:

On Fri, Mar 4, 2022 at 9:31 AM Benjamin Tissoires benjamin.tissoires@redhat.com wrote:

...

The test is pretty basic:

• create a virtual uhid device that no userspace will like (to not mess up the running system)
• attach a BPF prog to it
• open the matching hidraw node
• inject one event and check:
  • that the BPF program can do something on the event stream
  • can modify the event stream

Signed-off-by: Benjamin Tissoires benjamin.tissoires@redhat.com

Does this test run with vm (qemu, etc.)? Maybe we need to update tools/testing/selftests/bpf/config ?

Good point. I'll give it a shot. I was testing on my devel machine so it was quicker to iterate, but I completely forgot to make a run at qemu with the scripts in place.

Cheers, Benjamin

Thanks, Song