From mboxrd@z Thu Jan 1 00:00:00 1970 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C540FC4332F for ; Sat, 30 Oct 2021 18:33:51 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8C99C60FC1 for ; Sat, 30 Oct 2021 18:33:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 8C99C60FC1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=ESAuuc2RCrJpAOjfHRiIHLz/k1mXnNZb2xD8sB3oAcc=; b=Vv/0Y/2pSxQVU1 AaqU5+Wf+PW3lZBE+s4W6JwyyKPMJ6L3aiN1mAvyfjXl7dTqBAbO4xs6RYzcPeszl8w8Ca5CMfd0Q HMCJZgcJd6/mGwrzYme3EwIqjo+b67nkCydrmbAUvDwgnmieA+XdFbIfViATXE3zbkC53VN1y9Iyp P98rJjJkucTmKZHo4dgiJgPzInbR/GMC73/XSgqAeTwjLRiQF3WYIwv5SCxUQWQ6ftJgqvr8B4zLY OA4RdpII7vpB6sMpKKeXoIBmjvqygro7erETTN0uKqmiWXhd09k3lpRx0IB39hUmqIUgUX/HLXMj5 alUByXkl2uuOv9ihFGAg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mgt9i-00DQP0-1Q; Sat, 30 Oct 2021 18:32:38 +0000 Received: from out4436.biz.mail.alibaba.com ([47.88.44.36]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mgt9O-00DQNC-AZ for linux-arm-kernel@lists.infradead.org; Sat, 30 Oct 2021 18:32:19 +0000 X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R101e4; CH=green; DM=||false|; DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=e01e04394; MF=rongwei.wang@linux.alibaba.com; NM=1; PH=DS; RN=11; SR=0; TI=SMTPD_---0UuHo6Jk_1635618721; Received: from localhost.localdomain(mailfrom:rongwei.wang@linux.alibaba.com fp:SMTPD_---0UuHo6Jk_1635618721) by smtp.aliyun-inc.com(127.0.0.1); Sun, 31 Oct 2021 02:32:03 +0800 From: Rongwei Wang To: catalin.marinas@arm.com, will@kernel.org, mark.rutland@arm.com, james.morse@arm.com, ardb@kernel.org, tabba@google.com, akpm@linux-foundation.org, rppt@kernel.org, anshuman.khandual@arm.com Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/2] fix bug when calling kexec_load() Date: Sun, 31 Oct 2021 02:31:58 +0800 Message-Id: <20211030183200.51295-1-rongwei.wang@linux.alibaba.com> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211030_113218_540088_5094AEB3 X-CRM114-Status: UNSURE ( 7.04 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Patch 1/2 mainly to fix the bug when calling kexec_load(). And a user case shown in commit log. Patch 2/2 just make a very simple optimization, reducing calls to page_address() in kexec_page_alloc(). Thanks! Rongwei Wang (2): arm64: trans_pgd: fix incorrect use of pmd_populate_kernel in copy_pte() arm64: kexec: reduce calls to page_address() arch/arm64/kernel/machine_kexec.c | 6 ++++-- arch/arm64/mm/trans_pgd.c | 7 ++++--- 2 files changed, 8 insertions(+), 5 deletions(-) -- 2.27.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel