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@xxxxxxxxxx>
Cc: linux-kselftest@xxxxxxxxxxxxxxx
Acked-by: Jethro Beekman <jethro@xxxxxxxxxxxx> # v40
Signed-off-by: Jarkko Sakkinen <jarkko@xxxxxxxxxx>
---
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
