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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_v29 8/8] selftests/x86: Add selftest to invoke __vsgx_enter_enclave() from C
Date: Wed, 18 Mar 2020 18:11:30 -0700
Message-ID: <20200319011130.8556-9-sean.j.christopherson@intel.com> (raw)
In-Reply-To: <20200319011130.8556-1-sean.j.christopherson@intel.com>

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 --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);
 }
-- 
2.24.1


  parent reply index

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-19  1:11 [PATCH for_v29 0/8] x86/sgx: Make vDSO callable " Sean Christopherson
2020-03-19  1:11 ` [PATCH for_v29 1/8] x86/sgx: vdso: Remove an incorrect statement the enter enclave comment Sean Christopherson
2020-03-19 20:49   ` Jarkko Sakkinen
2020-03-19  1:11 ` [PATCH for_v29 2/8] x86/sgx: vdso: Make the %rsp fixup on return from handler relative Sean Christopherson
2020-03-20  2:39   ` Jarkko Sakkinen
2020-03-20  2:42     ` Jarkko Sakkinen
2020-03-19  1:11 ` [PATCH for_v29 3/8] x86/sgx: vdso: Make __vdso_sgx_enter_enclave() callable from C code Sean Christopherson
2020-03-19 20:03   ` Xing, Cedric
2020-03-19 20:11     ` Sean Christopherson
2020-03-20  3:07       ` Jarkko Sakkinen
2020-03-20 23:26         ` Sean Christopherson
2020-03-21  0:57           ` Jarkko Sakkinen
2020-03-19  1:11 ` [PATCH for_v29 4/8] x86/sgx: vdso: Define a typedef for __vdso_sgx_enter_enclave Sean Christopherson
2020-03-19  1:11 ` [PATCH for_v29 5/8] selftests/x86: sgx: Zero out @result before invoking vDSO sub-test Sean Christopherson
2020-03-19  1:11 ` [PATCH for_v29 6/8] selftests/x86: sgx: Pass EENTER to vDSO wrapper instead of hardcoding Sean Christopherson
2020-03-19  1:11 ` [PATCH for_v29 7/8] selftests/x86: sgx: Stop clobbering non-volatile registers Sean Christopherson
2020-03-19  1:11 ` Sean Christopherson [this message]
2020-03-20  0:57 ` [PATCH for_v29 0/8] x86/sgx: Make vDSO callable from C Jarkko Sakkinen
2020-03-20 23:25   ` Sean Christopherson
2020-03-21  0:55     ` Jarkko Sakkinen
2020-03-21 20:11       ` Sean Christopherson

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