The goal of these patches is to add a test case for a SGX reserved memory oversubscription, i.e. make sure that the page reclaimer and and the page fault handler are working correctly.
Change Log ==========
v3: * Reorganized the patch set into smaller pieces, and refactored the code so that the test enclave can be created inside each test case. Added a new test case unclobbered_vdso_oversubscribed that creates a large enough heap to fill all of the available SGX reserved memory (EPC).
Jarkko Sakkinen (8): x86/sgx: Add /sys/kernel/debug/x86/sgx_total_mem selftests/sgx: Assign source for each segment selftests/sgx: Make data measurement for an enclave segment optional selftests/sgx: Create a heap for the test enclave selftests/sgx: Dump segments and /proc/self/maps only on failure selftests/sgx: Encpsulate the test enclave creation selftests/sgx: Move setup_test_encl() to each TEST_F() selftests/sgx: Add a new kselftest: unclobbered_vdso_oversubscribed
Documentation/x86/sgx.rst | 6 ++ arch/x86/kernel/cpu/sgx/main.c | 10 +- tools/testing/selftests/sgx/load.c | 40 ++++++-- tools/testing/selftests/sgx/main.c | 129 ++++++++++++++++++++---- tools/testing/selftests/sgx/main.h | 7 +- tools/testing/selftests/sgx/sigstruct.c | 12 ++- 6 files changed, 165 insertions(+), 39 deletions(-)