linux-kernel - Re: [PATCH v2 2/2] selftests: kvm: Add mem_slot

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Message-ID: <20200407083251.3zgjscwhldcm5hce@kamzik.brq.redhat.com>
Date:   Tue, 7 Apr 2020 10:32:51 +0200
From:   Andrew Jones <drjones@...hat.com>
To:     Wainer dos Santos Moschetta <wainersm@...hat.com>
Cc:     pbonzini@...hat.com, kvm@...r.kernel.org, david@...hat.com,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v2 2/2] selftests: kvm: Add mem_slot_test test

On Mon, Apr 06, 2020 at 02:10:53PM -0300, Wainer dos Santos Moschetta wrote:
> 
> On 4/4/20 4:32 AM, Andrew Jones wrote:
> > On Fri, Apr 03, 2020 at 02:24:28PM -0300, Wainer dos Santos Moschetta wrote:
> > > This patch introduces the mem_slot_test test which checks
> > > an VM can have added memory slots up to the limit defined in
> > > KVM_CAP_NR_MEMSLOTS. Then attempt to add one more slot to
> > > verify it fails as expected.
> > > 
> > > Signed-off-by: Wainer dos Santos Moschetta <wainersm@...hat.com>
> > > ---
> > >   tools/testing/selftests/kvm/.gitignore      |  1 +
> > >   tools/testing/selftests/kvm/Makefile        |  3 +
> > >   tools/testing/selftests/kvm/mem_slot_test.c | 85 +++++++++++++++++++++
> > >   3 files changed, 89 insertions(+)
> > >   create mode 100644 tools/testing/selftests/kvm/mem_slot_test.c
> > > 
> > > diff --git a/tools/testing/selftests/kvm/.gitignore b/tools/testing/selftests/kvm/.gitignore
> > > index 16877c3daabf..232f24d6931a 100644
> > > --- a/tools/testing/selftests/kvm/.gitignore
> > > +++ b/tools/testing/selftests/kvm/.gitignore
> > > @@ -22,3 +22,4 @@
> > >   /dirty_log_test
> > >   /kvm_create_max_vcpus
> > >   /steal_time
> > > +/mem_slot_test
> > > diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
> > > index 712a2ddd2a27..69b44178f48b 100644
> > > --- a/tools/testing/selftests/kvm/Makefile
> > > +++ b/tools/testing/selftests/kvm/Makefile
> > > @@ -33,12 +33,14 @@ TEST_GEN_PROGS_x86_64 += demand_paging_test
> > >   TEST_GEN_PROGS_x86_64 += dirty_log_test
> > >   TEST_GEN_PROGS_x86_64 += kvm_create_max_vcpus
> > >   TEST_GEN_PROGS_x86_64 += steal_time
> > > +TEST_GEN_PROGS_x86_64 += mem_slot_test
> > >   TEST_GEN_PROGS_aarch64 += clear_dirty_log_test
> > >   TEST_GEN_PROGS_aarch64 += demand_paging_test
> > >   TEST_GEN_PROGS_aarch64 += dirty_log_test
> > >   TEST_GEN_PROGS_aarch64 += kvm_create_max_vcpus
> > >   TEST_GEN_PROGS_aarch64 += steal_time
> > > +TEST_GEN_PROGS_aarch64 += mem_slot_test
> > kvm selftests has a bad case of OCD when it comes to lists of tests. In
> > the .gitignore and the Makefile we keep our tests in alphabetical order.
> > Maybe we should stop, because it's a bit annoying to maintain, but my
> > personal OCD won't allow it to be on my watch. Please fix the above
> > three lists.
> 
> I will fix it on v3.
> 
> Kind of related... has ever been discussed a naming convention for kvm
> selftests? It would allow the use of regex on both .gitignore and
> Makefile...and bye-bye those sorted lists.

It's never been discussed that I know of. Feel free to send an RFC if
you'd like to kick off the discussion :-)

Thanks,
drew