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

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Message-ID: <CAPhsuW63HQE_GWFrz-t9_Uyq3KK3raYeG_x7OYMGR02DHzQ1=g@mail.gmail.com>
Date:   Fri, 4 Mar 2022 16:41:24 -0800
From:   Song Liu <song@...nel.org>
To:     Benjamin Tissoires <benjamin.tissoires@...hat.com>
Cc:     Greg KH <gregkh@...uxfoundation.org>,
        Jiri Kosina <jikos@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>, Shuah Khan <shuah@...nel.org>,
        Dave Marchevsky <davemarchevsky@...com>,
        Joe Stringer <joe@...ium.io>,
        Tero Kristo <tero.kristo@...ux.intel.com>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:HID CORE LAYER" <linux-input@...r.kernel.org>,
        Networking <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>,
        linux-kselftest@...r.kernel.org
Subject: Re: [PATCH bpf-next v2 05/28] selftests/bpf: add tests for the
 HID-bpf initial implementation

On Fri, Mar 4, 2022 at 9:31 AM Benjamin Tissoires
<benjamin.tissoires@...hat.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@...hat.com>
>

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

Thanks,
Song