On Fri, 19 Jun 2026 at 01:31, Ackerley Tng via B4 Relay <[email protected]> wrote: > > From: Ackerley Tng <[email protected]> > > Add a test case to verify that conversions between private and shared > memory work correctly when the memory is initially created as shared. > > Signed-off-by: Ackerley Tng <[email protected]> > Co-developed-by: Sean Christopherson <[email protected]> > Signed-off-by: Sean Christopherson <[email protected]>
Reviewed-by: Fuad Tabba <[email protected]> Cheers, /fuad > --- > .../testing/selftests/kvm/x86/guest_memfd_conversions_test.c | 12 > ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/tools/testing/selftests/kvm/x86/guest_memfd_conversions_test.c > b/tools/testing/selftests/kvm/x86/guest_memfd_conversions_test.c > index 8e09e241723e5..5b070d3374eae 100644 > --- a/tools/testing/selftests/kvm/x86/guest_memfd_conversions_test.c > +++ b/tools/testing/selftests/kvm/x86/guest_memfd_conversions_test.c > @@ -95,6 +95,12 @@ static void __gmem_conversions_##test(test_data_t *t, int > nr_pages) \ > #define GMEM_CONVERSION_TEST_INIT_PRIVATE(test) > \ > __GMEM_CONVERSION_TEST_INIT_PRIVATE(test, 1) > > +#define __GMEM_CONVERSION_TEST_INIT_SHARED(test, __nr_pages) > \ > + GMEM_CONVERSION_TEST(test, __nr_pages, GUEST_MEMFD_FLAG_INIT_SHARED) > + > +#define GMEM_CONVERSION_TEST_INIT_SHARED(test) > \ > + __GMEM_CONVERSION_TEST_INIT_SHARED(test, 1) > + > struct guest_check_data { > void *mem; > char expected_val; > @@ -186,6 +192,12 @@ GMEM_CONVERSION_TEST_INIT_PRIVATE(init_private) > test_convert_to_private(t, 0, 'C', 'E'); > } > > +GMEM_CONVERSION_TEST_INIT_SHARED(init_shared) > +{ > + test_shared(t, 0, 0, 'A', 'B'); > + test_convert_to_private(t, 0, 'B', 'C'); > + test_convert_to_shared(t, 0, 'C', 'D', 'E'); > +} > > int main(int argc, char *argv[]) > { > > -- > 2.55.0.rc0.738.g0c8ab3ebcc-goog > >
