From: Sean Christopherson <sean.j.christopherson@intel.com>
To: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Cc: Nathaniel McCallum <npmccallum@redhat.com>,
Cedric Xing <cedric.xing@intel.com>,
Jethro Beekman <jethro@fortanix.com>,
Andy Lutomirski <luto@amacapital.net>,
linux-sgx@vger.kernel.org
Subject: [PATCH for_v37 5/6] selftests/sgx: Sanity check the return value of the vDSO call
Date: Fri, 4 Sep 2020 03:44:36 -0700 [thread overview]
Message-ID: <20200904104437.29555-6-sean.j.christopherson@intel.com> (raw)
In-Reply-To: <20200904104437.29555-1-sean.j.christopherson@intel.com>
Assert that the vDSO call returns 0 and that the exit reason is always
due to EEXIT.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
tools/testing/selftests/sgx/main.c | 35 +++++++++++++++++++++---------
1 file changed, 25 insertions(+), 10 deletions(-)
diff --git a/tools/testing/selftests/sgx/main.c b/tools/testing/selftests/sgx/main.c
index 17f36e590fbd2..158ea9e2b6d3a 100644
--- a/tools/testing/selftests/sgx/main.c
+++ b/tools/testing/selftests/sgx/main.c
@@ -123,6 +123,24 @@ static Elf64_Sym *vdso_symtab_get(struct vdso_symtab *symtab, const char *name)
return NULL;
}
+int check_result(struct sgx_enclave_run *run, int ret, uint64_t result,
+ const char *test)
+{
+ if (ret) {
+ printf("FAIL: %s() returned: %d\n", test, ret);
+ return ret;
+ } else if (run->exit_reason != SGX_SYNCHRONOUS_EXIT) {
+ printf("FAIL: %s() exit reason, expected: %u, got: %u\n",
+ test, SGX_SYNCHRONOUS_EXIT, run->exit_reason);
+ return -EIO;
+ } else if (result != MAGIC) {
+ printf("FAIL: %s(), expected: 0x%lx, got: 0x%lx\n",
+ test, MAGIC, result);
+ return -EIO;
+ }
+ return 0;
+}
+
int main(int argc, char *argv[], char *envp[])
{
struct sgx_enclave_run run;
@@ -132,6 +150,7 @@ int main(int argc, char *argv[], char *envp[])
struct encl encl;
unsigned int i;
void *addr;
+ int ret;
if (!encl_load("test_encl.elf", &encl))
goto err;
@@ -172,21 +191,17 @@ int main(int argc, char *argv[], char *envp[])
eenter = addr + eenter_sym->st_value;
- sgx_call_vdso((void *)&MAGIC, &result, 0, EENTER, NULL, NULL, &run);
- if (result != MAGIC) {
- printf("FAIL: sgx_call_vdso(), expected: 0x%lx, got: 0x%lx\n",
- MAGIC, result);
+ ret = sgx_call_vdso((void *)&MAGIC, &result, 0, EENTER, NULL, NULL, &run);
+ if (check_result(&run, ret, result, "sgx_call_vdso"))
goto err;
- }
+
/* Invoke the vDSO directly. */
result = 0;
- eenter((unsigned long)&MAGIC, (unsigned long)&result, 0, EENTER, 0, 0, &run);
- if (result != MAGIC) {
- printf("FAIL: eenter(), expected: 0x%lx, got: 0x%lx\n",
- MAGIC, result);
+ ret = eenter((unsigned long)&MAGIC, (unsigned long)&result, 0, EENTER,
+ 0, 0, &run);
+ if (check_result(&run, ret, result, "eenter"))
goto err;
- }
printf("SUCCESS\n");
encl_delete(&encl);
--
2.28.0
next prev parent reply other threads:[~2020-09-04 10:45 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-04 10:44 [PATCH for_v37 0/6] x86/vdso: x86/sgx: Rework SGX vDSO API Sean Christopherson
2020-09-04 10:44 ` [PATCH for_v37 1/6] x86/vdso: x86/sgx: Explicitly force 8-byte CMP for detecting user handler Sean Christopherson
2020-09-04 10:44 ` [PATCH for_v37 2/6] x86/vdso: x86/sgx: Rework __vdso_sgx_enter_enclave() API Sean Christopherson
2020-09-04 13:46 ` Jarkko Sakkinen
2020-09-04 10:44 ` [PATCH for_v37 3/6] x86/vdso: x86/sgx: Introduce dedicated SGX exit reasons for vDSO Sean Christopherson
2020-09-04 14:06 ` Jarkko Sakkinen
2020-09-04 10:44 ` [PATCH for_v37 4/6] selftests/sgx: Update the SGX selftest to match the reworked vDSO API Sean Christopherson
2020-09-04 14:07 ` Jarkko Sakkinen
2020-09-04 10:44 ` Sean Christopherson [this message]
2020-09-04 14:07 ` [PATCH for_v37 5/6] selftests/sgx: Sanity check the return value of the vDSO call Jarkko Sakkinen
2020-09-04 10:44 ` [PATCH for_v37 6/6] selftests/sgx: Add a smoke test to ensure the user handler is invoked Sean Christopherson
2020-09-04 14:10 ` Jarkko Sakkinen
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