On Fri, 13 Sep 2024 13:52:46 +0200
Christoph Schlameuss <schlame...@linux.ibm.com> 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 <schlame...@linux.ibm.com>
> ---
> .../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
> +{
> + return (void *)(self->base_hva - self->base_gpa + gpa);
> +}
> +
> +/* map / make additional memory available */
[...]
