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=-5.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 B99CCC433FF for ; Mon, 5 Aug 2019 11:30:00 +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 8BA3420856 for ; Mon, 5 Aug 2019 11:30:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="PSCjpJL3" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8BA3420856 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Jg9ZpcaaDI0+Ey4O73/6iB6LOh0Y0MdnG7XR6mhGH6Q=; b=PSCjpJL3qFewqS r4KjpeKZ+b3M2tJ7AyNL4/my+dXJkzO7mLVstZE3ssBmaGPIj5LNAwmUx6XfWBR55YiPQ++y7cTzO THkYQs3ee3FTfgIhkug879a01Kgfv9MIuaWaVBa5Kgj1emC0oUVUyiFoZfflPRaoC07dFvx2yQq67 hLPf4Pnzjs1frVv8O99IIpyd4AmCEeJreaaN5J8Ddu0IDt6FPJQzH0CtA/Bc7Uv7Y2Z2MX7AoLj7Y EqPonJVRmz0Pa7QYKZuYil4uFRkQa3J8Y2gfhIm8hTsrtM+VjPgnOGnHksO4v72P8vZMmtrr2ILr0 r6x5g8xnsCQERTvxf/KQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hubBg-0005Fk-31; Mon, 05 Aug 2019 11:30:00 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hubBc-0005FJ-Fg for linux-arm-kernel@lists.infradead.org; Mon, 05 Aug 2019 11:29:57 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B6981337; Mon, 5 Aug 2019 04:29:54 -0700 (PDT) Received: from iMac.local (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A91383F694; Mon, 5 Aug 2019 04:29:53 -0700 (PDT) Date: Mon, 5 Aug 2019 12:29:51 +0100 From: Catalin Marinas To: Steve Capper Subject: Re: [PATCH V4 02/11] arm64: mm: Flip kernel VA space Message-ID: <20190805112951.GE59981@iMac.local> References: <20190729162117.832-1-steve.capper@arm.com> <20190729162117.832-3-steve.capper@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190729162117.832-3-steve.capper@arm.com> User-Agent: Mutt/1.11.1 (2018-12-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190805_042956_582686_25F5CF26 X-CRM114-Status: GOOD ( 11.01 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: crecklin@redhat.com, ard.biesheuvel@linaro.org, maz@kernel.org, bhsharma@redhat.com, will@kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Jul 29, 2019 at 05:21:08PM +0100, Steve Capper wrote: > diff --git a/arch/arm64/mm/dump.c b/arch/arm64/mm/dump.c > index 82b3a7fdb4a6..6f0b9f8ddf55 100644 > --- a/arch/arm64/mm/dump.c > +++ b/arch/arm64/mm/dump.c > @@ -26,6 +26,8 @@ > #include > > static const struct addr_marker address_markers[] = { > + { PAGE_OFFSET, "Linear Mapping start" }, > + { VA_START, "Linear Mapping end" }, > #ifdef CONFIG_KASAN > { KASAN_SHADOW_START, "Kasan shadow start" }, > { KASAN_SHADOW_END, "Kasan shadow end" }, > @@ -40,9 +42,8 @@ static const struct addr_marker address_markers[] = { > { PCI_IO_END, "PCI I/O end" }, > #ifdef CONFIG_SPARSEMEM_VMEMMAP > { VMEMMAP_START, "vmemmap start" }, > - { VMEMMAP_START + VMEMMAP_SIZE, "vmemmap end" }, > + { -1, "vmemmap end" }, Why not keep the original vmemmap end here? We even leave a 2MB gap. -- Catalin _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel