From patchwork Thu Nov 19 19:07:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 11918843 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=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 79445C56201 for ; Thu, 19 Nov 2020 19:08:22 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 E687A20853 for ; Thu, 19 Nov 2020 19:08:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=xen.org header.i=@xen.org header.b="6oUTZanF" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E687A20853 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xen.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.31361.61680 (Exim 4.92) (envelope-from ) id 1kfpHf-0005WG-GZ; Thu, 19 Nov 2020 19:07:55 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 31361.61680; Thu, 19 Nov 2020 19:07:55 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kfpHf-0005W9-Dh; Thu, 19 Nov 2020 19:07:55 +0000 Received: by outflank-mailman (input) for mailman id 31361; Thu, 19 Nov 2020 19:07:54 +0000 Received: from mail.xenproject.org ([104.130.215.37]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kfpHe-0005W4-PD for xen-devel@lists.xenproject.org; Thu, 19 Nov 2020 19:07:54 +0000 Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kfpHe-0003SX-7N; Thu, 19 Nov 2020 19:07:54 +0000 Received: from 54-240-197-235.amazon.com ([54.240.197.235] helo=ufe34d9ed68d054.ant.amazon.com) by xenbits.xenproject.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kfpHd-0000TE-Tw; Thu, 19 Nov 2020 19:07:54 +0000 Received: from mail.xenproject.org ([104.130.215.37]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kfpHe-0005W4-PD for xen-devel@lists.xenproject.org; Thu, 19 Nov 2020 19:07:54 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=xen.org; s=20200302mail; h=Message-Id:Date:Subject:Cc:To:From; bh=RBmBaVqmiUjfq+YgUTE0vJmyrxBqE/rwdqrNFYyLDHc=; b=6oUTZanFTg59Q1EOMCPjBTSsMd VdE4CrPnGMnT0rDjnM1F05nmfkMS1k4rHxPbg7tPsTFMMeBDRLwMrzVJEZ/3or+imZi3fVDSNrtrx hxbtDHkczn46355GctRu8cClSM/x0xiXfudqdBaqF2XGwfUlaptLBOInw4EmfMRb3sMs=; Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kfpHe-0003SX-7N; Thu, 19 Nov 2020 19:07:54 +0000 Received: from 54-240-197-235.amazon.com ([54.240.197.235] helo=ufe34d9ed68d054.ant.amazon.com) by xenbits.xenproject.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kfpHd-0000TE-Tw; Thu, 19 Nov 2020 19:07:54 +0000 From: Julien Grall To: xen-devel@lists.xenproject.org Cc: bertrand.marquis@arm.com, Julien Grall , Stefano Stabellini , Julien Grall , Volodymyr Babchuk Subject: [PATCH RFC 0/6] xen/arm: mm: Add limited support for superpages Date: Thu, 19 Nov 2020 19:07:45 +0000 Message-Id: <20201119190751.22345-1-julien@xen.org> X-Mailer: git-send-email 2.17.1 From: Julien Grall Hi all, This is a first attempt to add superpage mapping in xen_pt_update_entry(). The end goal if to remove open-coding mappings which will help to: 1) get better compliance with the Arm memory model 2) pave the way for other page size (64KB, 16KB). For now, only the open-code mappings for the Device-Tree is reworked. The others will be added later. Julien Grall (5): xen/arm: mm: Remove ; at the end of mm_printk() xen/arm: setup: Call unregister_init_virtual_region() after the last init function xen/arm: mm: Allow other mapping size in xen_pt_update_entry() xen/arm: mm: Don't open-code Xen PT update in remove_early_mappings xen/arm: mm: Re-implement early_fdt_map() using map_pages_to_xen() Stefano Stabellini (1): xen/arm: mm: Remove special case for CPU0 in dump_hyp_walk() xen/arch/arm/mm.c | 122 +++++++++++++++++++++++++++---------- xen/arch/arm/setup.c | 3 +- xen/include/asm-arm/page.h | 4 ++ 3 files changed, 95 insertions(+), 34 deletions(-)