From patchwork Mon Aug 21 04:00:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Penny Zheng X-Patchwork-Id: 13359080 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 D6E4DEE49A0 for ; Mon, 21 Aug 2023 04:01:28 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.587202.918520 (Exim 4.92) (envelope-from ) id 1qXw6M-0003Gk-5Q; Mon, 21 Aug 2023 04:01:14 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 587202.918520; Mon, 21 Aug 2023 04:01:14 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qXw6M-0003Gd-2I; Mon, 21 Aug 2023 04:01:14 +0000 Received: by outflank-mailman (input) for mailman id 587202; Mon, 21 Aug 2023 04:01:12 +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 1qXw6K-0003GX-SM for xen-devel@lists.xenproject.org; Mon, 21 Aug 2023 04:01:12 +0000 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by se1-gles-sth1.inumbo.com (Halon) with ESMTP id 5c7766bc-3fd7-11ee-8782-cb3800f73035; Mon, 21 Aug 2023 06:01:10 +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 E4D021FB; Sun, 20 Aug 2023 21:01:49 -0700 (PDT) Received: from a011292.shanghai.arm.com (a011292.shanghai.arm.com [10.169.190.94]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id C0D2D3F740; Sun, 20 Aug 2023 21:01:06 -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: 5c7766bc-3fd7-11ee-8782-cb3800f73035 From: Penny Zheng To: xen-devel@lists.xenproject.org Cc: wei.chen@arm.com, Penny Zheng , Stefano Stabellini , Julien Grall , Bertrand Marquis , Volodymyr Babchuk Subject: [PATCH v3 0/8] Follow-up static shared memory PART I Date: Mon, 21 Aug 2023 12:00:38 +0800 Message-Id: <20230821040046.2965665-1-Penny.Zheng@arm.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 There are some unsolving issues on current 4.17 static shared memory feature[1], including: - In order to avoid keeping growing 'membank', having the shared memory info in separate structures is preferred. - Missing implementation on having the host address optional in "xen,shared-mem" property - Removing static shared memory from extended regions - Missing reference release on foreign superpage - Missing "xen,offset" feature, which is introduced in Linux DOC[2] All above objects have been divided into two parts to complete. And this patch serie is PART I. [1] https://lore.kernel.org/all/20220908135513.1800511-1-Penny.Zheng@arm.com/ [2] https://www.kernel.org/doc/Documentation/devicetree/bindings/reserved-memory/xen%2Cshared-memory.txt Penny Zheng (8): xen/arm: remove stale addr_cells/size_cells in assign_shared_memory xen/arm: re-define a set of data structures for static shared memory region xen/arm: introduce allocate_domheap_memory and guest_physmap_memory xen/arm: use paddr_assigned to indicate whether host address is provided xen/arm: support static shared memory when host address not provided xen/arm: remove shm holes for extended regions xen/p2m: put reference for superpage xen/docs: refine docs about static shared memory docs/misc/arm/device-tree/booting.txt | 52 +- xen/arch/arm/bootfdt.c | 125 +++-- xen/arch/arm/domain_build.c | 708 ++++++++++++++++++++------ xen/arch/arm/include/asm/kernel.h | 9 +- xen/arch/arm/include/asm/setup.h | 57 ++- xen/arch/arm/p2m.c | 58 ++- 6 files changed, 784 insertions(+), 225 deletions(-)