Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp2210881pxb; Sat, 23 Jan 2021 22:32:52 -0800 (PST) X-Google-Smtp-Source: ABdhPJyXOllalG7zToHjHxMCKfqbNJXIfMaJPsRUWuZLJMjyj9ExVZTFqaAwVkaBDpp7kphxnh0B X-Received: by 2002:a17:906:ace:: with SMTP id z14mr873073ejf.53.1611469971967; Sat, 23 Jan 2021 22:32:51 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1611469971; cv=none; d=google.com; s=arc-20160816; b=aG5YNOr0fmLdTDsx4PRcZxCFG43m0u5EZ+yrWLQwCpi83NpaJmVNuc26lHnECzEEpN 1kre+biFkWplUAkyxxH2hO6uxO7W70GeBJ/om8gXGKssoja1ALdqe7ihNIlc1MksDneY JmtIJpcrK0ueQm0xpYvmIC6BQhh/yMXtxNKhqv2QD1BtT0GaeO5ettHA/U5RrpQmr8tu gNxj1WxTBIMGZUWnPA72MokKeQRrG5FC5ibdyMcz7SAvaNc56Q9rzz8xksBxpdFnHooL WkQ3JOBKG3L2pdVGritdQ+/dPcNdN2kmplvbLFBWI3r8DIWIWZpa1OldqQFc+FEYnso+ 8+tQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=XC5Oi2kido1nzbm5TBsfK8yAmF/U61W9dM5fhZSFQ7g=; b=jCMMnNVEWrzc6spA9EPguUdIhuHeS2LRCFZiVTsoyUpygTIpdteRKpSEG5WhspIKmJ vvweEavLrMnW81uXQKMuZAcqOm7mOUDkbvK0Ca/OYCGvUQDqvLCqRV3PFNb/XPzyhWtf wN90KwL+Q4Vu5ICxodOFrzYnMtxVcNWvmEhQpAaNTKQH6jTOPQkPHVHHU0hfBsCRNBi4 gz1qJ0ytzsNGzO1+bOUqXaTItoLULk4rabofed/JXsQ6o4nOXPK3d8rI6BjJ08G3rNEy 5su6vMAL/4YA2n4WlvmPKijV40OkgWVeAXl4URiICmnBrCqm1VKEu475QVXZ7oQtkt8O 8OkA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id t17si4793040ejs.180.2021.01.23.22.31.59; Sat, 23 Jan 2021 22:32:51 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726482AbhAXGaF (ORCPT + 99 others); Sun, 24 Jan 2021 01:30:05 -0500 Received: from out30-132.freemail.mail.aliyun.com ([115.124.30.132]:50047 "EHLO out30-132.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726092AbhAXGaE (ORCPT ); Sun, 24 Jan 2021 01:30:04 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R161e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04423;MF=tianjia.zhang@linux.alibaba.com;NM=1;PH=DS;RN=13;SR=0;TI=SMTPD_---0UMfz8v3_1611469747; Received: from localhost(mailfrom:tianjia.zhang@linux.alibaba.com fp:SMTPD_---0UMfz8v3_1611469747) by smtp.aliyun-inc.com(127.0.0.1); Sun, 24 Jan 2021 14:29:08 +0800 From: Tianjia Zhang To: Jarkko Sakkinen , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Sean Christopherson , Shuah Khan , x86@kernel.org, linux-sgx@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Jia Zhang Cc: Tianjia Zhang Subject: [PATCH v3 0/5] Some optimizations related to sgx Date: Sun, 24 Jan 2021 14:29:02 +0800 Message-Id: <20210124062907.88229-1-tianjia.zhang@linux.alibaba.com> X-Mailer: git-send-email 2.19.1.3.ge56e4f7 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an optimization of a set of sgx-related codes, each of which is independent of the patch. Because the second and third patches have conflicting dependencies, these patches are put together. --- v3 changes: * split free_cnt count and spin lock optimization into two patches v2 changes: * review suggested changes Tianjia Zhang (5): selftests/x86: Simplify the code to get vdso base address in sgx x86/sgx: Optimize the locking range in sgx_sanitize_section() x86/sgx: Optimize the free_cnt count in sgx_epc_section x86/sgx: Allows ioctl PROVISION to execute before CREATE x86/sgx: Remove redundant if conditions in sgx_encl_create arch/x86/kernel/cpu/sgx/driver.c | 1 + arch/x86/kernel/cpu/sgx/ioctl.c | 9 +++++---- arch/x86/kernel/cpu/sgx/main.c | 13 +++++-------- tools/testing/selftests/sgx/main.c | 24 ++++-------------------- 4 files changed, 15 insertions(+), 32 deletions(-) -- 2.19.1.3.ge56e4f7