On 11/12/20 3:01 PM, Jarkko Sakkinen wrote:
Add a selftest for SGX. It is a trivial test where a simple enclave copies one 64-bit word of memory between two memory locations, but ensures that all SGX hardware and software infrastructure is functioning.
Cc: Shuah Khan shuah@kernel.org Cc: linux-kselftest@vger.kernel.org Acked-by: Jethro Beekman jethro@fortanix.com # v40 Signed-off-by: Jarkko Sakkinen jarkko@kernel.org
Changes from v40:
Remove $(OUTPUT)/test_encl.elf from TEST_CUSTOM_PROGS, as otherwise run_tests tries to execute it. Add it as a build dependency.
Use the correct device path, /dev/sgx_enclave, instead of /dev/sgx/enclave.
Return kselftest framework expected return codes.
tools/testing/selftests/Makefile | 1 + tools/testing/selftests/sgx/.gitignore | 2 + tools/testing/selftests/sgx/Makefile | 53 +++ tools/testing/selftests/sgx/call.S | 44 ++ tools/testing/selftests/sgx/defines.h | 21 + tools/testing/selftests/sgx/load.c | 277 +++++++++++++ tools/testing/selftests/sgx/main.c | 246 +++++++++++ tools/testing/selftests/sgx/main.h | 38 ++ tools/testing/selftests/sgx/sigstruct.c | 391 ++++++++++++++++++ tools/testing/selftests/sgx/test_encl.c | 20 + tools/testing/selftests/sgx/test_encl.lds | 40 ++ .../selftests/sgx/test_encl_bootstrap.S | 89 ++++ 12 files changed, 1222 insertions(+) create mode 100644 tools/testing/selftests/sgx/.gitignore create mode 100644 tools/testing/selftests/sgx/Makefile create mode 100644 tools/testing/selftests/sgx/call.S create mode 100644 tools/testing/selftests/sgx/defines.h create mode 100644 tools/testing/selftests/sgx/load.c create mode 100644 tools/testing/selftests/sgx/main.c create mode 100644 tools/testing/selftests/sgx/main.h create mode 100644 tools/testing/selftests/sgx/sigstruct.c create mode 100644 tools/testing/selftests/sgx/test_encl.c create mode 100644 tools/testing/selftests/sgx/test_encl.lds create mode 100644 tools/testing/selftests/sgx/test_encl_bootstrap.S
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile index d9c283503159..aa06e3ea0250 100644 --- a/tools/testing/selftests/Makefile +++ b/tools/testing/selftests/Makefile @@ -68,6 +68,7 @@ TARGETS += user TARGETS += vm TARGETS += x86 TARGETS += zram +TARGETS += sgx #Please keep the TARGETS list alphabetically sorted
Please keep the list sorted alphabetically as stated in the comment above.
+}
+int main(int argc, char *argv[], char *envp[]) +{
- struct sgx_enclave_run run;
- struct vdso_symtab symtab;
- Elf64_Sym *eenter_sym;
- uint64_t result = 0;
- struct encl encl;
- unsigned int i;
- void *addr;
- int ret;
- memset(&run, 0, sizeof(run));
- if (!encl_load("test_encl.elf", &encl)) {
encl_delete(&encl);ksft_exit_skip("cannot load enclaves\n");- }
- if (!encl_measure(&encl))
goto err;- if (!encl_build(&encl))
goto err;- /*
* An enclave consumer only must do this.*/- for (i = 0; i < encl.nr_segments; i++) {
struct encl_segment *seg = &encl.segment_tbl[i];addr = mmap((void *)encl.encl_base + seg->offset, seg->size,seg->prot, MAP_SHARED | MAP_FIXED, encl.fd, 0);if (addr == MAP_FAILED) {fprintf(stderr, "mmap() failed, errno=%d.\n", errno);exit(1);
This should be KSFT_FAIL.
thanks, -- Shuah