{"id":818138,"url":"http://patchwork.ozlabs.org/api/patches/818138/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-imx/patch/1506330344-31556-5-git-send-email-vladimir.murzin@arm.com/","project":{"id":19,"url":"http://patchwork.ozlabs.org/api/projects/19/?format=json","name":"Linux IMX development","link_name":"linux-imx","list_id":"linux-imx-kernel.lists.patchwork.ozlabs.org","list_email":"linux-imx-kernel@lists.patchwork.ozlabs.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<1506330344-31556-5-git-send-email-vladimir.murzin@arm.com>","list_archive_url":null,"date":"2017-09-25T09:05:40","name":"[v3,4/8] ARM: NOMMU: Disallow MPU for XIP","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"bc48d5bf591971309b22d7c8c999972cbf6ccc59","submitter":{"id":65248,"url":"http://patchwork.ozlabs.org/api/people/65248/?format=json","name":"Vladimir Murzin","email":"vladimir.murzin@arm.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-imx/patch/1506330344-31556-5-git-send-email-vladimir.murzin@arm.com/mbox/","series":[{"id":4911,"url":"http://patchwork.ozlabs.org/api/series/4911/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-imx/list/?series=4911","date":"2017-09-25T09:05:36","name":"ARM: NOMMU: MPU updates","version":3,"mbox":"http://patchwork.ozlabs.org/series/4911/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/818138/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/818138/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming-imx@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming-imx@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=lists.infradead.org\n\t(client-ip=65.50.211.133; helo=bombadil.infradead.org;\n\tenvelope-from=linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org;\n\treceiver=)","ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=lists.infradead.org\n\theader.i=@lists.infradead.org\n\theader.b=\"dmUAGTiF\"; dkim-atps=neutral"],"Received":["from bombadil.infradead.org (bombadil.infradead.org\n\t[65.50.211.133])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3y0yt13x0Cz9sDB\n\tfor ;\n\tMon, 25 Sep 2017 19:08:09 +1000 (AEST)","from localhost ([127.0.0.1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dwPMy-0002pJ-R2; Mon, 25 Sep 2017 09:08:04 +0000","from foss.arm.com ([217.140.101.70])\n\tby bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dwPLT-0001N1-IU for linux-arm-kernel@lists.infradead.org;\n\tMon, 25 Sep 2017 09:06:37 +0000","from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249])\n\tby usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 0A521169F;\n\tMon, 25 Sep 2017 02:06:12 -0700 (PDT)","from bc-c11-3-12.euhpc.arm.com. (bc-c11-3-12.euhpc.arm.com\n\t[10.6.2.250])\n\tby usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id\n\t7BF8C3F3E1; Mon, 25 Sep 2017 02:06:10 -0700 (PDT)"],"DKIM-Signature":"v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20170209; h=Sender:\n\tContent-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post:\n\tList-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:\n\tMessage-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description:\n\tResent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:\n\tList-Owner; bh=aS9QulGyDs+uEAal9mDLVJZfVyNve4Hqo+n9DUNQSNc=;\n\tb=dmUAGTiFqUS61n\n\tiXA+ykbLHvO/VgYox6BFpADa8N5r039WJwnZGbyzLAqEaECM1+bSFmWp3EA35IEy71pcKEa7WPhk8\n\tQqNb7cFtJjL4OAWxeX36+HMgY1X3hEy1kFY/y5GPiQTxJ30wcRmLBG+cu2DJLq6KeNRmyCrWbgUCu\n\tCbo2/MHgf03RU3madX8+i2TmiGBIGhrkHvnk72RI6V7AAymJ33ajfkvfveSepi/0FxascHJs4VDde\n\tSOcKtlWRkqj8ClPbDBZIW6BBSwuWszFMu+nFqF1BmvlvQcQ+oZ83kQusHCqS70Fd5wt+uIdqyIY3H\n\tUpPSi+VanK2nztcvG7ew==;","From":"Vladimir Murzin ","To":"linux-arm-kernel@lists.infradead.org","Subject":"[PATCH v3 4/8] ARM: NOMMU: Disallow MPU for XIP","Date":"Mon, 25 Sep 2017 10:05:40 +0100","Message-Id":"<1506330344-31556-5-git-send-email-vladimir.murzin@arm.com>","X-Mailer":"git-send-email 2.0.0","In-Reply-To":"<1506330344-31556-1-git-send-email-vladimir.murzin@arm.com>","References":"<1506330344-31556-1-git-send-email-vladimir.murzin@arm.com>","MIME-Version":"1.0","X-CRM114-Version":"20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ","X-CRM114-CacheID":"sfid-20170925_020631_930746_8CA03CE3 ","X-CRM114-Status":"UNSURE ( 8.05 )","X-CRM114-Notice":"Please train this message.","X-Spam-Score":"-6.9 (------)","X-Spam-Report":"SpamAssassin version 3.4.1 on bombadil.infradead.org summary:\n\tContent analysis details: (-6.9 points)\n\tpts rule name description\n\t---- ----------------------\n\t--------------------------------------------------\n\t-5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/,\n\thigh trust [217.140.101.70 listed in list.dnswl.org]\n\t-0.0 SPF_PASS SPF: sender matches SPF record\n\t-0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay\n\tdomain\n\t-1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n\t[score: 0.0000]","X-BeenThere":"linux-arm-kernel@lists.infradead.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Cc":"alexandre.torgue@st.com, manabian@gmail.com, linux@armlinux.org.uk,\n\tstefan@agner.ch, kbuild-all@01.org, u.kleine-koenig@pengutronix.de,\n\tsza@esh.hu","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"base64","Sender":"\"linux-arm-kernel\" ","Errors-To":"linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org","List-Id":"linux-imx-kernel.lists.patchwork.ozlabs.org"},"content":"It seems that MPU never worked with XIP, so we just disallow such\ncombination.\n\nTested-by: Szemző András \nTested-by: Alexandre TORGUE \nSigned-off-by: Vladimir Murzin \n---\n arch/arm/Kconfig-nommu | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)","diff":"diff --git a/arch/arm/Kconfig-nommu b/arch/arm/Kconfig-nommu\nindex b757634..6d18395 100644\n--- a/arch/arm/Kconfig-nommu\n+++ b/arch/arm/Kconfig-nommu\n@@ -52,7 +52,7 @@ config REMAP_VECTORS_TO_RAM\n \n config ARM_MPU\n bool 'Use the ARM v7 PMSA Compliant MPU'\n- depends on CPU_V7\n+ depends on !XIP_KERNEL && CPU_V7\n default y\n help\n Some ARM systems without an MMU have instead a Memory Protection\n","prefixes":["v3","4/8"]}