From patchwork Wed Oct 7 17:00:22 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeremy Linton X-Patchwork-Id: 7346741 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 6ED5E9F302 for ; Wed, 7 Oct 2015 17:04:45 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A2A36206FB for ; Wed, 7 Oct 2015 17:04:44 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CDFD620654 for ; Wed, 7 Oct 2015 17:04:43 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zjs6g-0006tw-2M; Wed, 07 Oct 2015 17:02:22 +0000 Received: from eu-smtp-delivery-143.mimecast.com ([146.101.78.143]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zjs5Y-00062R-J9 for linux-arm-kernel@lists.infradead.org; Wed, 07 Oct 2015 17:01:13 +0000 Received: from cam-owa2.Emea.Arm.com (fw-tnat.cambridge.arm.com [217.140.96.140]) by eu-smtp-1.mimecast.com with ESMTP id uk-mta-5-qwwT4jI4TB6AhTflxrLvwQ-1; Wed, 07 Oct 2015 18:00:50 +0100 Received: from mammon-v1.localdomain.localdomain ([10.1.2.79]) by cam-owa2.Emea.Arm.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 7 Oct 2015 18:00:49 +0100 From: Jeremy Linton To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 4/7] arm64: Default kernel pages should be contiguous Date: Wed, 7 Oct 2015 12:00:22 -0500 Message-Id: <1444237225-13802-5-git-send-email-jeremy.linton@arm.com> X-Mailer: git-send-email 2.4.3 In-Reply-To: <1444237225-13802-1-git-send-email-jeremy.linton@arm.com> References: <1444237225-13802-1-git-send-email-jeremy.linton@arm.com> X-OriginalArrivalTime: 07 Oct 2015 17:00:50.0021 (UTC) FILETIME=[B7D54150:01D10121] X-MC-Unique: qwwT4jI4TB6AhTflxrLvwQ-1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151007_100113_124464_3ED3117A X-CRM114-Status: UNSURE ( 7.50 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -5.2 (-----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: steve.capper@linaro.org, catalin.marinas@arm.com, will.deacon@arm.com, Jeremy Linton , dwoods@ezchip.com, shijie.huang@arm.com, dennis.chen@arm.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The default page attributes for a PMD being broken should have the CONT bit set. Create a new definition for an early boot range of PTE's that are contiguous. Signed-off-by: Jeremy Linton --- arch/arm64/include/asm/pgtable.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index cc19ec1..a1bcd64 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -72,6 +72,8 @@ extern void __pgd_error(const char *file, int line, unsigned long val); #define PAGE_KERNEL __pgprot(_PAGE_DEFAULT | PTE_PXN | PTE_UXN | PTE_DIRTY | PTE_WRITE) #define PAGE_KERNEL_EXEC __pgprot(_PAGE_DEFAULT | PTE_UXN | PTE_DIRTY | PTE_WRITE) +#define PAGE_KERNEL_EXEC_CONT __pgprot(_PAGE_DEFAULT | PTE_UXN | PTE_DIRTY | \ + PTE_WRITE | PTE_CONT) #define PAGE_HYP __pgprot(_PAGE_DEFAULT | PTE_HYP) #define PAGE_HYP_DEVICE __pgprot(PROT_DEVICE_nGnRE | PTE_HYP)