From: Sean Christopherson <sean.j.christopherson@intel.com>
To: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Cc: linux-sgx@vger.kernel.org
Subject: [PATCH for_v23 03/16] x86/vdso: sgx: Rename the enclave exit handler typedef
Date: Mon, 7 Oct 2019 21:46:00 -0700 [thread overview]
Message-ID: <20191008044613.12350-4-sean.j.christopherson@intel.com> (raw)
In-Reply-To: <20191008044613.12350-1-sean.j.christopherson@intel.com>
Rename the exit handler callback to sgx_enclave_exit_handler_t so that
the name itself describes the purpose of the function to some extent.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
arch/x86/entry/vdso/vsgx_enter_enclave.S | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/x86/entry/vdso/vsgx_enter_enclave.S b/arch/x86/entry/vdso/vsgx_enter_enclave.S
index 06e18a2836de..5fbe07a03e6c 100644
--- a/arch/x86/entry/vdso/vsgx_enter_enclave.S
+++ b/arch/x86/entry/vdso/vsgx_enter_enclave.S
@@ -53,12 +53,12 @@
* -EFAULT if ENCL or the enclave faults or non-positive value is returned
* from the callback.
*/
-typedef int (*sgx_callback)(long rdi, long rsi, long rdx, int ret,
- long r8, long r9, void *tcs, long ursp,
- struct sgx_enclave_exception *e);
+typedef int (*sgx_enclave_exit_handler_t)(long rdi, long rsi, long rdx, int ret,
+ long r8, long r9, void *tcs, long ursp,
+ struct sgx_enclave_exception *e);
int __vdso_sgx_enter_enclave(int leaf, void *tcs,
struct sgx_enclave_exception *e,
- sgx_callback callback);
+ sgx_enclave_exit_handler_t handler);
#endif
ENTRY(__vdso_sgx_enter_enclave)
/* Prolog */
@@ -86,17 +86,17 @@ ENTRY(__vdso_sgx_enter_enclave)
xor %eax, %eax
3: mov %eax, %ecx
- /* Call *callback if supplied */
+ /* Call the exit handler if supplied */
mov 0x20(%rbp), %rax
test %rax, %rax
jz 7f
/* Align stack per x86_64 ABI. The original %rsp is saved in %rbx to be
- * restored after *callback returns. */
+ * restored after the exit handler returns. */
mov %rsp, %rbx
and $-0x10, %rsp
/* Clear RFLAGS.DF per x86_64 ABI */
cld
- /* Parameters for *callback */
+ /* Parameters for the exit handler */
push 0x18(%rbp)
push %rbx
push 0x10(%rbp)
@@ -105,9 +105,9 @@ ENTRY(__vdso_sgx_enter_enclave)
/* Restore %rsp to its original value left off by the enclave from last
* exit */
mov %rbx, %rsp
- /* Positive return value from *callback will be interpreted as an ENCLU
- * leaf, while a non-positive value will be interpreted as the return
- * value to be passed back to the caller. */
+ /* Positive return value from the exit handler will be interpreted as
+ * an ENCLU leaf, while a non-positive value will be interpreted as the
+ * return value to be passed back to the caller. */
jmp 1b
40: /* retpoline */
call 42f
--
2.22.0
next prev parent reply other threads:[~2019-10-08 4:46 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-08 4:45 [PATCH for_v23 00/16] x86/vdso: sgx: Major vDSO cleanup Sean Christopherson
2019-10-08 4:45 ` [PATCH for_v23 01/16] x86/vdso: sgx: Drop the pseudocode "documentation" Sean Christopherson
2019-10-08 4:45 ` [PATCH for_v23 02/16] x86/vdso: sgx: Do not use exception info to pass success/failure Sean Christopherson
2019-10-08 4:46 ` Sean Christopherson [this message]
2019-10-08 4:46 ` [PATCH for_v23 04/16] x86/vdso: sgx: Move enclave exit handler declaration to UAPI header Sean Christopherson
2019-10-08 4:46 ` [PATCH for_v23 05/16] x86/vdso: sgx: Add comment regarding kernel-doc shenanigans Sean Christopherson
2019-10-08 4:46 ` [PATCH for_v23 06/16] x86/vdso: sgx: Rewrite __vdso_sgx_enter_enclave() function comment Sean Christopherson
2019-10-08 4:46 ` [PATCH for_v23 07/16] selftests/x86: Fix linker warning in SGX selftest Sean Christopherson
2019-10-08 4:46 ` [PATCH for_v23 08/16] selftests/x86/sgx: Use getauxval() to retrieve the vDSO base address Sean Christopherson
2019-10-08 4:46 ` [PATCH for_v23 09/16] selftests/x86/sgx: Add helper function and macros to assert results Sean Christopherson
2019-10-08 4:46 ` [PATCH for_v23 10/16] selftests/x86/sgx: Handle setup failures via test assertions Sean Christopherson
2019-10-15 10:16 ` Jarkko Sakkinen
2019-10-15 10:24 ` Jarkko Sakkinen
2019-10-15 10:25 ` Jarkko Sakkinen
2019-10-15 11:03 ` Jarkko Sakkinen
2019-10-15 16:27 ` Sean Christopherson
2019-10-16 10:20 ` Jarkko Sakkinen
2019-10-16 20:21 ` Sean Christopherson
2019-10-15 16:18 ` Sean Christopherson
2019-10-16 10:19 ` Jarkko Sakkinen
2019-10-08 4:46 ` [PATCH for_v23 11/16] selftests/x86/sgx: Sanitize the types for sgx_call()'s input params Sean Christopherson
2019-10-08 4:46 ` [PATCH for_v23 12/16] selftests/x86/sgx: Move existing sub-test to a separate helper Sean Christopherson
2019-10-08 4:46 ` [PATCH for_v23 13/16] selftests/x86/sgx: Add a test of the vDSO exception reporting mechanism Sean Christopherson
2019-10-08 4:46 ` [PATCH for_v23 14/16] selftests/x86/sgx: Add test of vDSO with basic exit handler Sean Christopherson
2019-10-08 4:46 ` [PATCH for_v23 15/16] selftests/x86/sgx: Add sub-test for exception behavior with " Sean Christopherson
2019-10-08 4:46 ` [PATCH for_v23 16/16] x86/vdso: sgx: Rework __vdso_sgx_enter_enclave() to prefer "no callback" Sean Christopherson
2019-10-09 18:00 ` Xing, Cedric
2019-10-09 19:10 ` Sean Christopherson
2019-10-10 0:21 ` Sean Christopherson
2019-10-10 17:49 ` Xing, Cedric
2019-10-10 23:59 ` Sean Christopherson
2019-10-16 22:18 ` Xing, Cedric
2019-10-16 22:53 ` Sean Christopherson
2019-10-10 8:10 ` [PATCH for_v23 00/16] x86/vdso: sgx: Major vDSO cleanup Jarkko Sakkinen
2019-10-10 16:08 ` Sean Christopherson
2019-10-14 21:04 ` Jarkko Sakkinen
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