On Fri Sep 13, 2024 at 6:48 PM CEST, Claudio Imbrenda wrote: > On Fri, 13 Sep 2024 13:52:46 +0200 > Christoph Schlameuss <schlameuss@xxxxxxxxxxxxx> wrote: > > > Add a test case verifying basic running and interaction of ucontrol VMs. > > Fill the segment and page tables for allocated memory and map memory on > > first access. > > > > * uc_map_unmap > > Store and load data to mapped and unmapped memory and use pic segment > > translation handling to map memory on access. > > > > Signed-off-by: Christoph Schlameuss <schlameuss@xxxxxxxxxxxxx> > > --- > > .../selftests/kvm/s390x/ucontrol_test.c | 145 +++++++++++++++++- > > 1 file changed, 144 insertions(+), 1 deletion(-) > > > > diff --git a/tools/testing/selftests/kvm/s390x/ucontrol_test.c b/tools/testing/selftests/kvm/s390x/ucontrol_test.c > > index 030c59010fe1..084cea02c2fa 100644 > > --- a/tools/testing/selftests/kvm/s390x/ucontrol_test.c > > +++ b/tools/testing/selftests/kvm/s390x/ucontrol_test.c > > [...] > > >base_gpa + self->code_gpa; > > @@ -222,6 +244,60 @@ TEST(uc_cap_hpage) > > close(kvm_fd); > > } > > > > +/* calculate host virtual addr from guest physical addr */ > > +static void *gpa2hva(FIXTURE_DATA(uc_kvm) * self, u64 gpa) > > why the space? I would have expected *self > That is how checkpatch.pl --strict prefers it. Output from checkpatch without the space: CHECK: spaces preferred around that '*' (ctx:WxV) #19: FILE: tools/testing/selftests/kvm/s390x/ucontrol_test.c:278: +static void *gpa2hva(FIXTURE_DATA(uc_kvm) *self, u64 gpa) ^ > > +{ > > + return (void *)(self->base_hva - self->base_gpa + gpa); > > +} > > + > > +/* map / make additional memory available */ > > [...]