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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 3541FECAAD5 for ; Thu, 8 Sep 2022 04:26:09 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.402628.644455 (Exim 4.92) (envelope-from ) id 1oW971-0000BY-I3; Thu, 08 Sep 2022 04:25:59 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 402628.644455; Thu, 08 Sep 2022 04:25:59 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1oW971-0000BR-FU; Thu, 08 Sep 2022 04:25:59 +0000 Received: by outflank-mailman (input) for mailman id 402628; Thu, 08 Sep 2022 04:25:57 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1oW96z-000054-N4 for xen-devel@lists.xenproject.org; Thu, 08 Sep 2022 04:25:57 +0000 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by se1-gles-sth1.inumbo.com (Halon) with ESMTP id 549c7b81-2f2e-11ed-a016-b9edf5238543; Thu, 08 Sep 2022 06:25:56 +0200 (CEST) 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 2B9DBD6E; Wed, 7 Sep 2022 21:26:01 -0700 (PDT) Received: from entos-skylake.shanghai.arm.com (entos-skylake.shanghai.arm.com [10.169.212.207]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 7DFC03F7B4; Wed, 7 Sep 2022 21:25:51 -0700 (PDT) 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" X-Inumbo-ID: 549c7b81-2f2e-11ed-a016-b9edf5238543 From: Henry Wang To: xen-devel@lists.xenproject.org Cc: Henry Wang , Stefano Stabellini , Julien Grall , Bertrand Marquis , Wei Chen , Volodymyr Babchuk , Andrew Cooper , George Dunlap , Jan Beulich , Wei Liu Subject: [PATCH v5 0/4] Introduce static heap Date: Thu, 8 Sep 2022 04:25:34 +0000 Message-Id: <20220908042538.27076-1-Henry.Wang@arm.com> X-Mailer: git-send-email 2.17.1 The static heap, or statically configured heap, refers to parts of RAM reserved in the beginning for heap. Like the static memory allocation, such static heap regions are reserved by configuration in the device tree using physical address ranges. This feature is useful to run Xen on Arm MPU systems, where only a finite number of memory protection regions are available. The limited number of protection regions places requirement on planning the use of MPU protection regions and one or more MPU protection regions needs to be reserved only for heap. The first patch enhances the error handling in processing the dts chosen node. The second patch introduces the static heap and the device tree parsing code. The third patch renames xenheap_* to directmap_* for better readablity. The fourth patch adds the implementation of the static heap pages handling in boot and heap allocator for Arm. Changes from v4 to v5: - Use #address-cells and #size-cells for static heap, do not introduce new address/size cells. Update the dt-binding accordingly. - Correct a typo in code comments. - Drop Stefano's acked-by in patch #2 as it is not valid. - Mention the function and code comment rename in commit mesg in patch #3. Henry Wang (4): xen/arm: bootfdt: Make process_chosen_node() return int docs, xen/arm: Introduce static heap memory xen/arm: mm: Rename xenheap_* variable to directmap_* xen/arm: Handle static heap pages in boot and heap allocator SUPPORT.md | 7 ++ docs/misc/arm/device-tree/booting.txt | 52 +++++++++ xen/arch/arm/bootfdt.c | 53 ++++++--- xen/arch/arm/domain_build.c | 8 +- xen/arch/arm/include/asm/config.h | 2 +- xen/arch/arm/include/asm/mm.h | 31 ++--- xen/arch/arm/include/asm/setup.h | 23 +++- xen/arch/arm/mm.c | 50 +++++---- xen/arch/arm/setup.c | 156 ++++++++++++++++++++------ 9 files changed, 293 insertions(+), 89 deletions(-) -- 2.17.1