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 X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5C94EC3A59E for ; Wed, 21 Aug 2019 13:55:17 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (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 3C56120673 for ; Wed, 21 Aug 2019 13:55:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3C56120673 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 26C1EE4F; Wed, 21 Aug 2019 13:55:17 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id B263FE46 for ; Wed, 21 Aug 2019 13:55:15 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 290B789E for ; Wed, 21 Aug 2019 13:55:15 +0000 (UTC) X-UUID: 8f3dea1f210946af885448893f51ac04-20190821 X-UUID: 8f3dea1f210946af885448893f51ac04-20190821 Received: from mtkexhb01.mediatek.inc [(172.21.101.102)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0707 with TLS) with ESMTP id 147302319; Wed, 21 Aug 2019 21:55:10 +0800 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Wed, 21 Aug 2019 21:55:08 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Wed, 21 Aug 2019 21:55:07 +0800 From: Yong Wu To: Joerg Roedel , Matthias Brugger , Robin Murphy , Will Deacon Subject: [PATCH v10 07/23] iommu/io-pgtable-arm-v7s: Use ias/oas to check the valid iova/pa Date: Wed, 21 Aug 2019 21:53:10 +0800 Message-ID: <1566395606-7975-8-git-send-email-yong.wu@mediatek.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1566395606-7975-1-git-send-email-yong.wu@mediatek.com> References: <1566395606-7975-1-git-send-email-yong.wu@mediatek.com> MIME-Version: 1.0 X-MTK: N Cc: youlin.pei@mediatek.com, devicetree@vger.kernel.org, Nicolas Boichat , cui.zhang@mediatek.com, srv_heupstream@mediatek.com, chao.hao@mediatek.com, linux-kernel@vger.kernel.org, Evan Green , Tomasz Figa , iommu@lists.linux-foundation.org, Rob Herring , linux-mediatek@lists.infradead.org, ming-fan.chen@mediatek.com, anan.sun@mediatek.com, Matthias Kaehlcke , linux-arm-kernel@lists.infradead.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org Use ias/oas to check the valid iova/pa. Synchronize this checking with io-pgtable-arm.c. Signed-off-by: Yong Wu --- drivers/iommu/io-pgtable-arm-v7s.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c index 72f1880..fa1b38f 100644 --- a/drivers/iommu/io-pgtable-arm-v7s.c +++ b/drivers/iommu/io-pgtable-arm-v7s.c @@ -504,7 +504,8 @@ static int arm_v7s_map(struct io_pgtable_ops *ops, unsigned long iova, if (!(prot & (IOMMU_READ | IOMMU_WRITE))) return 0; - if (WARN_ON(upper_32_bits(iova) || upper_32_bits(paddr))) + if (WARN_ON(iova >= (1ULL << data->iop.cfg.ias) || + paddr >= (1ULL << data->iop.cfg.oas))) return -ERANGE; ret = __arm_v7s_map(data, iova, paddr, size, prot, 1, data->pgd); -- 1.9.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu