From: Ackerley Tng <[email protected]> Test that conversion to private specifying the KVM_SET_MEMORY_ATTRIBUTES2_ZERO flag returns -1 and sets errno to EOPNOTSUPP.
Signed-off-by: Ackerley Tng <[email protected]> --- .../selftests/kvm/x86/guest_memfd_conversions_test.c | 15 +++++++++++++++ 1 file changed, 15 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 13bbc361eaeda..922261ebaff96 100644 --- a/tools/testing/selftests/kvm/x86/guest_memfd_conversions_test.c +++ b/tools/testing/selftests/kvm/x86/guest_memfd_conversions_test.c @@ -488,6 +488,21 @@ GMEM_CONVERSION_MULTIPAGE_TEST_INIT_SHARED(elevated_refcount, 4) } } +GMEM_CONVERSION_TEST_INIT_SHARED(convert_to_private_does_not_support_zero) +{ + const loff_t start_offset = 0; + loff_t error_offset = 0; + int ret; + + ret = __gmem_set_private(t->gmem_fd, start_offset, nr_pages * page_size, + &error_offset, + KVM_SET_MEMORY_ATTRIBUTES2_ZERO); + + TEST_ASSERT_EQ(ret, -1); + TEST_ASSERT_EQ(errno, EOPNOTSUPP); + TEST_ASSERT_EQ(error_offset, start_offset); +} + int main(int argc, char *argv[]) { TEST_REQUIRE(kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SW_PROTECTED_VM)); -- 2.54.0.545.g6539524ca2-goog
