[PATCH v5 06/13] selftests/sgx: Remove redundant enclave base address save/restore

From: Jo Van Bulck
Date: Thu Aug 31 2023 - 09:42:45 EST


Remove redundant push/pop pair that stores and restores the enclave base
address in the test enclave, as it is never used after the pop and can
anyway be easily retrieved via the __encl_base symbol.

Signed-off-by: Jo Van Bulck <jo.vanbulck@xxxxxxxxxxxxxx>
Acked-by: Kai Huang <kai.huang@xxxxxxxxx>
---
tools/testing/selftests/sgx/test_encl_bootstrap.S | 3 ---
1 file changed, 3 deletions(-)

diff --git a/tools/testing/selftests/sgx/test_encl_bootstrap.S b/tools/testing/selftests/sgx/test_encl_bootstrap.S
index 03ae0f57e29d..e0ce993d3f2c 100644
--- a/tools/testing/selftests/sgx/test_encl_bootstrap.S
+++ b/tools/testing/selftests/sgx/test_encl_bootstrap.S
@@ -55,12 +55,9 @@ encl_entry_core:
push %rax

push %rcx # push the address after EENTER
- push %rbx # push the enclave base address

call encl_body

- pop %rbx # pop the enclave base address
-
/* Clear volatile GPRs, except RAX (EEXIT function). */
xor %rcx, %rcx
xor %rdx, %rdx
--
2.25.1