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=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 A30FEC433FF for ; Wed, 7 Aug 2019 15:12:35 +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 79E54218FE for ; Wed, 7 Aug 2019 15:12:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="NVYMLGjk" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 79E54218FE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+infradead-linux-riscv=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=uw0v1l0VJHXPHI9IuX8U5R8fFOPLNYGmphCpDBVCdRI=; b=NVYMLGjk03k31W fd3+8TBVPIvQxmRZ4/T/0IUiHGjIBK9vYcZ7BznzSJVXuQQyLz7ci9rBoUWtULfDHRKx0EAqEnMfM OwIkYuk4ST5K6k4SJszAAVmDVViaOBtyanKOe8KlUPaofkTo8Efl2p4Q9hKoMJwFbEnY3mODsXmub OnXBYOR2nrcPlJBFOuFvNfmog7vr1fsrWjJcc0oc8mq34HgMa3JO4eN1sTiUsa+V0dt2Luy5DS+QS AHloK22bQiYYvwkH7t07OZGt2mtIw63gy9MX8UjfB0iYuDyFZeS4FIUJPkwfU2q2lKi2WeM5DOaj3 RV8188i5VKNGhPSzU3uw==; 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 1hvNc7-0004ba-B1; Wed, 07 Aug 2019 15:12:31 +0000 Received: from hch by bombadil.infradead.org with local (Exim 4.92 #3 (Red Hat Linux)) id 1hvNc6-0004bD-1i; Wed, 07 Aug 2019 15:12:30 +0000 Date: Wed, 7 Aug 2019 08:12:30 -0700 From: Christoph Hellwig To: Alexandre Ghiti Subject: Re: [PATCH] riscv: kbuild: add virtual memory system selection Message-ID: <20190807151229.GA16432@infradead.org> References: <20190802084453.GA1410@infradead.org> <20190807054246.GB1398@infradead.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.11.4 (2019-03-13) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Christoph Hellwig , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Paul Walmsley Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org On Wed, Aug 07, 2019 at 09:04:40AM +0200, Alexandre Ghiti wrote: > I took a look at how x86 deals with 5-level page table: it allows to handle > 5-level and 4-level at runtime by folding the last page table level (cf > Documentation/x86/x86_64/5level-paging.rst). So we might want to be able to > do the same and deal with that at runtime. Yes, following the X86_5LEVEL model is the right thing. _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv