diff mbox series

[for_v29,8/8] selftests/x86: Add selftest to invoke __vsgx_enter_enclave() from C

Message ID 20200319011130.8556-9-sean.j.christopherson@intel.com (mailing list archive)
State New, archived
Headers show
Series x86/sgx: Make vDSO callable from C | expand

Commit Message

Sean Christopherson March 19, 2020, 1:11 a.m. UTC 
Add a selftest to call __vsgx_enter_enclave() from C.

Suggested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
 tools/testing/selftests/x86/sgx/main.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/x86/sgx/main.c b/tools/testing/selftests/x86/sgx/main.c
index 9b89946a976b..bf64fa857983 100644
--- a/tools/testing/selftests/x86/sgx/main.c
+++ b/tools/testing/selftests/x86/sgx/main.c
@@ -21,7 +21,7 @@ 
 #define PAGE_SIZE  4096
 
 static const uint64_t MAGIC = 0x1122334455667788ULL;
-void *eenter;
+vdso_sgx_enter_enclave_t eenter;
 
 struct vdso_symtab {
 	Elf64_Sym *elf_symtab;
@@ -376,5 +376,17 @@  int main(int argc, char *argv[], char *envp[])
 
 	printf("Output: 0x%lx\n", result);
 
+	printf("Input: 0x%lx\n", MAGIC);
+	result = 0;
+
+	/* Invoke the vDSO directly. */
+	eenter((unsigned long)&MAGIC, (unsigned long)&result, 0, 2, 0, 0,
+	       (void *)secs.base, &exception, NULL);
+	if (result != MAGIC) {
+		fprintf(stderr, "0x%lx != 0x%lx\n", result, MAGIC);
+		exit(1);
+	}
+	printf("Output: 0x%lx\n", result);
+
 	exit(0);
 }