From patchwork Fri May 24 12:40:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Fancellu X-Patchwork-Id: 13673119 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 06239C25B7D for ; Fri, 24 May 2024 12:41:25 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.729478.1134626 (Exim 4.92) (envelope-from ) id 1sAUET-000841-3b; Fri, 24 May 2024 12:41:13 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 729478.1134626; Fri, 24 May 2024 12:41:13 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1sAUET-00083u-12; Fri, 24 May 2024 12:41:13 +0000 Received: by outflank-mailman (input) for mailman id 729478; Fri, 24 May 2024 12:41:11 +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 1sAUER-00082M-NC for xen-devel@lists.xenproject.org; Fri, 24 May 2024 12:41:11 +0000 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by se1-gles-sth1.inumbo.com (Halon) with ESMTP id e3343d1c-19ca-11ef-90a1-e314d9c70b13; Fri, 24 May 2024 14:41:06 +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 6F192339; Fri, 24 May 2024 05:41:29 -0700 (PDT) Received: from e125770.cambridge.arm.com (e125770.arm.com [10.1.199.43]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7D1253F641; Fri, 24 May 2024 05:41:04 -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: e3343d1c-19ca-11ef-90a1-e314d9c70b13 From: Luca Fancellu To: xen-devel@lists.xenproject.org Cc: Stefano Stabellini , Julien Grall , Bertrand Marquis , Michal Orzel , Volodymyr Babchuk Subject: [PATCH v4 0/7] Static shared memory followup v2 - pt2 Date: Fri, 24 May 2024 13:40:48 +0100 Message-Id: <20240524124055.3871399-1-luca.fancellu@arm.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 This serie is a partial rework of this other serie: https://patchwork.kernel.org/project/xen-devel/cover/20231206090623.1932275-1-Penny.Zheng@arm.com/ The original serie is addressing an issue of the static shared memory feature that impacts the memory footprint of other component when the feature is enabled, another issue impacts the device tree generation for the guests when the feature is enabled and used and the last one is a missing feature that is the option to have a static shared memory region that is not from the host address space. This serie is handling some comment on the original serie and it is splitting the rework in two part, this first part is addressing the memory footprint issue and the device tree generation and currently is fully merged (https://patchwork.kernel.org/project/xen-devel/cover/20240418073652.3622828-1-luca.fancellu@arm.com/), this serie is addressing the static shared memory allocation from the Xen heap. Luca Fancellu (5): xen/arm: Lookup bootinfo shm bank during the mapping xen/arm: Wrap shared memory mapping code in one function xen/arm: Parse xen,shared-mem when host phys address is not provided xen/arm: Rework heap page allocation outside allocate_bank_memory xen/arm: Implement the logic for static shared memory from Xen heap Penny Zheng (2): xen/p2m: put reference for level 2 superpage xen/docs: Describe static shared memory when host address is not provided docs/misc/arm/device-tree/booting.txt | 52 ++- xen/arch/arm/arm32/mmu/mm.c | 11 +- xen/arch/arm/dom0less-build.c | 4 +- xen/arch/arm/domain_build.c | 84 +++-- xen/arch/arm/include/asm/domain_build.h | 9 +- xen/arch/arm/mmu/p2m.c | 82 +++-- xen/arch/arm/setup.c | 14 +- xen/arch/arm/static-shmem.c | 432 +++++++++++++++++------- 8 files changed, 502 insertions(+), 186 deletions(-)