linux-kernel - Re: [RFC 00/19] Integration of Kernel Test Framework (KTF) into the kernel tree

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Date:   Tue, 13 Aug 2019 10:02:18 -0700
From:   Brendan Higgins <brendanhiggins@...gle.com>
To:     Knut Omang <knut.omang@...cle.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
        linux-kbuild <linux-kbuild@...r.kernel.org>,
        Shuah Khan <shuah@...nel.org>,
        Jonathan Corbet <corbet@....net>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        Shreyans Devendra Doshi <0xinfosect0r@...il.com>,
        Alan Maguire <alan.maguire@...cle.com>,
        Kevin Hilman <khilman@...libre.com>,
        Hidenori Yamaji <hidenori.yamaji@...y.com>,
        Frank Rowand <frowand.list@...il.com>,
        Timothy Bird <Tim.Bird@...y.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        "Theodore Ts'o" <tytso@....edu>, Daniel Vetter <daniel@...ll.ch>,
        Stephen Boyd <sboyd@...nel.org>
Subject: Re: [RFC 00/19] Integration of Kernel Test Framework (KTF) into the
 kernel tree

On Tue, Aug 13, 2019 at 2:51 AM Knut Omang <knut.omang@...cle.com> wrote:
>
> On Tue, 2019-08-13 at 10:23 +0200, Greg Kroah-Hartman wrote:
> > On Tue, Aug 13, 2019 at 08:09:15AM +0200, Knut Omang wrote:
> > > and in the making::
> > >
> > > kunit/                        (kernel only (UML))
> >
> > You are going to have to integrate this with kunit, to come up with a
> > superset of both in the end.
>
> Yes, I agree - getting to a unified approach has been my intention since I first brought this
> up at LPC'17.
>
> > And I do not think that kunit is only UML, it's just that seems to be
> > what Brendan tests with, but should work with other arches as well.
>
> If I get Brendan right, it is UML only now but can be extended to also support
> kernels running on real hardware. Still it is kernel only, while KTF also has the
> hybrid mode, where a test can have code and assertions both in user mode and kernel mode.
> This is made easier and more streamlined by letting all reporting happen from user mode.

Nope, the KUnit patchset currently under review *does* support any
architecture; we have tested it on x86, ARM, and UML, but it should
work on any architecture.

I added support for that a while ago due to popular demand.