From patchwork Thu Sep 21 14:35:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jo Van Bulck X-Patchwork-Id: 13394545 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C7B76E7D0AE for ; Thu, 21 Sep 2023 20:30:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231890AbjIUUap (ORCPT ); Thu, 21 Sep 2023 16:30:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57476 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232640AbjIUUa3 (ORCPT ); Thu, 21 Sep 2023 16:30:29 -0400 Received: from icts-p-cavspool-1.kulnet.kuleuven.be (icts-p-cavspool-1.kulnet.kuleuven.be [134.58.240.194]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9654F8CC99; Thu, 21 Sep 2023 10:42:40 -0700 (PDT) Received: from icts-p-cavuit-4.kulnet.kuleuven.be (icts-p-cavuit-4.kulnet.kuleuven.be [IPv6:2a02:2c40:0:c0::25:134]) by icts-p-cavspool-1.kulnet.kuleuven.be (Postfix) with ESMTP id E8F7F29C9; Thu, 21 Sep 2023 16:37:01 +0200 (CEST) X-KULeuven-Envelope-From: jo.vanbulck@cs.kuleuven.be X-KULeuven-Scanned: Found to be clean X-KULeuven-ID: 25D61144.A1983 X-KULeuven-Information: Katholieke Universiteit Leuven Received: from icts-p-ceifnet-smtps-0.kuleuven.be (icts-p-ceifnet-smtps.service.icts.svcd [IPv6:2a02:2c40:0:51:140:242:ac11:1d]) by icts-p-cavuit-4.kulnet.kuleuven.be (Postfix) with ESMTP id 25D61144; Thu, 21 Sep 2023 16:36:39 +0200 (CEST) BCmilterd-Mark-Subject: no BCmilterd-Errors: BCmilterd-Report: SA-HVU#DKIM_VALID_AU#0.00,SA-HVU#DKIM_SIGNED#0.00,SA-HVU#DKIM_VALID#0.00 X-CAV-Cluster: smtps DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cs.kuleuven.be; s=cav; t=1695306999; bh=G6MSMTKkZN7DyiwjN3c8ohciKNBn5ePbhZJEt6SrDZQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=NILEj4xVP98rUEUpRGLGl6kZ5Ot8IqZa0Xm6I2MnIGbEcshIW5yd2zVK0J6URzDa8 d1EyUJbFK4KCen8Xua9RxnGlCft0S8SuzXu2Pz4xvD5RKu0MIJqVyFSjGPy+uQCQA5 CXL0VszRmpvrbk82VPG4MVaLsOtQJqKzgj1UHW8M= Received: from localhost.localdomain (ptr-82s0fs8p4onqm1q5sl7.18120a2.ip6.access.telenet.be [IPv6:2a02:1811:d31:8b00:c962:1db3:c9ed:fdfb]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by icts-p-ceifnet-smtps-0.kuleuven.be (Postfix) with ESMTPSA id E19CBD4F30837; Thu, 21 Sep 2023 16:36:38 +0200 (CEST) X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Jo Van Bulck To: jarkko@kernel.org, kai.huang@intel.com, linux-sgx@vger.kernel.org, linux-kernel@vger.kernel.org Cc: dave.hansen@linux.intel.com, Jo Van Bulck Subject: [PATCH v6 06/13] selftests/sgx: Remove redundant enclave base address save/restore Date: Thu, 21 Sep 2023 16:35:57 +0200 Message-Id: <20230921143604.6561-7-jo.vanbulck@cs.kuleuven.be> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230921143604.6561-1-jo.vanbulck@cs.kuleuven.be> References: <20230921143604.6561-1-jo.vanbulck@cs.kuleuven.be> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sgx@vger.kernel.org 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 Acked-by: Kai Huang Reviewed-by: Jarkko Sakkinen --- 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