From patchwork Tue Jan 5 15:41:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Sistare X-Patchwork-Id: 11999737 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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,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 231B2C433E0 for ; Tue, 5 Jan 2021 16:29:41 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 A0C4322CA0 for ; Tue, 5 Jan 2021 16:29:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A0C4322CA0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=oracle.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:33458 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kwpDF-0003Yd-Vc for qemu-devel@archiver.kernel.org; Tue, 05 Jan 2021 11:29:37 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:53204) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kwovM-00079Q-9t for qemu-devel@nongnu.org; Tue, 05 Jan 2021 11:11:08 -0500 Received: from aserp2130.oracle.com ([141.146.126.79]:36170) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kwovK-0005UD-Hl for qemu-devel@nongnu.org; Tue, 05 Jan 2021 11:11:08 -0500 Received: from pps.filterd (aserp2130.oracle.com [127.0.0.1]) by aserp2130.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 105FsjfW094282; Tue, 5 Jan 2021 16:11:03 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=corp-2020-01-29; bh=xGxUrL2p7kReaYTonVCM7YEX96cymyrpmYU+usiceHg=; b=xoqD92iVpHqREL3SsFkOPAtZwyCv8s67UiIRRX5jWMzlEB1kmgD+3q7YPR8l4JvJoJfy Go4/e3R8LzruS1wgiCLvVsbs+nOce0kZnJOy3+ETPy3fQTcWaW6azmz+9UiizoYRAp8g YQv/0aadQk9ycjtZm31W48lXSJNF51n6qUtqBb8G1dkqrlN25qX240pxtiy8iKgmyjdL 2/rMlvBulNe1fDTPi9v+k9F4ohEk1v/eVkXtVBSqOpBIqax8nEruGSLkadIlfZNEv5WY 2hZQmBz7EbYuVquE4CupPv0pzyzoQdvv0L06I7XvzJbaWn43U9sSHgbia2TBGJtrGCav qw== Received: from userp3030.oracle.com (userp3030.oracle.com [156.151.31.80]) by aserp2130.oracle.com with ESMTP id 35tebask5q-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 05 Jan 2021 16:11:03 +0000 Received: from pps.filterd (userp3030.oracle.com [127.0.0.1]) by userp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 105FtLBr175897; Tue, 5 Jan 2021 16:09:02 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userp3030.oracle.com with ESMTP id 35vct61vhf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 05 Jan 2021 16:09:02 +0000 Received: from abhmp0011.oracle.com (abhmp0011.oracle.com [141.146.116.17]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 105G90J6003312; Tue, 5 Jan 2021 16:09:00 GMT Received: from ca-dev63.us.oracle.com (/10.211.8.221) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 05 Jan 2021 08:09:00 -0800 From: Steve Sistare To: qemu-devel@nongnu.org Subject: [PATCH V2 01/22] as_flat_walk Date: Tue, 5 Jan 2021 07:41:49 -0800 Message-Id: <1609861330-129855-2-git-send-email-steven.sistare@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1609861330-129855-1-git-send-email-steven.sistare@oracle.com> References: <1609861330-129855-1-git-send-email-steven.sistare@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9855 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 malwarescore=0 phishscore=0 bulkscore=0 mlxlogscore=999 suspectscore=0 mlxscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2101050099 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9855 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 phishscore=0 priorityscore=1501 spamscore=0 mlxscore=0 clxscore=1015 bulkscore=0 lowpriorityscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2101050099 Received-SPF: pass client-ip=141.146.126.79; envelope-from=steven.sistare@oracle.com; helo=aserp2130.oracle.com X-Spam_score_int: -46 X-Spam_score: -4.7 X-Spam_bar: ---- X-Spam_report: (-4.7 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.252, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Daniel P. Berrange" , "Michael S. Tsirkin" , Jason Zeng , =?utf-8?q?Alex_Benn=C3=A9e?= , Juan Quintela , "Dr. David Alan Gilbert" , Markus Armbruster , Alex Williamson , Steve Sistare , Stefan Hajnoczi , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Paolo Bonzini , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Add an iterator over the sections of a flattened address space. Signed-off-by: Steve Sistare --- include/exec/memory.h | 3 +++ softmmu/memory.c | 17 +++++++++++++++++ 2 files changed, 20 insertions(+) diff --git a/include/exec/memory.h b/include/exec/memory.h index 307e527..8dba065 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -1894,6 +1894,9 @@ bool memory_region_present(MemoryRegion *container, hwaddr addr); */ bool memory_region_is_mapped(MemoryRegion *mr); +typedef int (*qemu_flat_walk_cb)(MemoryRegionSection *s, void *handle); +int as_flat_walk(AddressSpace *as, qemu_flat_walk_cb func, void *handle); + /** * memory_region_find: translate an address/size relative to a * MemoryRegion into a #MemoryRegionSection. diff --git a/softmmu/memory.c b/softmmu/memory.c index af25987..8cac3bc 100644 --- a/softmmu/memory.c +++ b/softmmu/memory.c @@ -2513,6 +2513,23 @@ bool memory_region_is_mapped(MemoryRegion *mr) return mr->container ? true : false; } +int as_flat_walk(AddressSpace *as, qemu_flat_walk_cb func, void *handle) +{ + FlatView *view = address_space_get_flatview(as); + FlatRange *fr; + int ret; + + FOR_EACH_FLAT_RANGE(fr, view) { + MemoryRegionSection section = section_from_flat_range(fr, view); + ret = func(§ion, handle); + if (ret) { + return ret; + } + } + + return 0; +} + /* Same as memory_region_find, but it does not add a reference to the * returned region. It must be called from an RCU critical section. */