From patchwork Thu Jan 14 15:39:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jag Raman X-Patchwork-Id: 12020133 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=-11.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED,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 EE02BC433E0 for ; Thu, 14 Jan 2021 16:11:16 +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 86BD5239EB for ; Thu, 14 Jan 2021 16:11:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 86BD5239EB 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]:51720 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l05DP-00025H-Gw for qemu-devel@archiver.kernel.org; Thu, 14 Jan 2021 11:11:15 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:56216) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l04m2-0003BC-55 for qemu-devel@nongnu.org; Thu, 14 Jan 2021 10:42:58 -0500 Received: from aserp2130.oracle.com ([141.146.126.79]:35164) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l04ly-00028C-DS for qemu-devel@nongnu.org; Thu, 14 Jan 2021 10:42:57 -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 10EFXvIq135835; Thu, 14 Jan 2021 15:42:27 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : mime-version : content-type : content-transfer-encoding; s=corp-2020-01-29; bh=A+6aly2bpITz6ptS5voq442IafiIJ5MlpU0GBt6cCm8=; b=SUWI4Vd7tvUQtjG9QOa7BGt+kneZOPgEggi2RaGUNgt+N3P6iD7zaefjelKr6pF5LeQQ BP5rEFI2hFUYV47lxd6X5dqRU93rEpmKfknB3Yt6XiRGCipawhkFvL8DkpnB6aBLeUR2 O9dJ6IumAh1XrJqhRR4mg+SKwi8HKAqpQSoXZkMamC0WrKDT4IPSN3Pz0saknEf8TPET 05+gPVZ62JGI//7JSCDcB6MfVwbMuk0xEI+9d2lhxWJVApmUOny1iShlrV/X6ovX3bxK Gv0TEvzkILXVGvfLjCCcV/rw7dFvdYgkuN3Q0bn3tYfqd12hfNuJhqk3zXupkjYYVL9F hw== Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by aserp2130.oracle.com with ESMTP id 360kg20u4q-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 14 Jan 2021 15:42:27 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 10EFYsml093491; Thu, 14 Jan 2021 15:40:26 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userp3020.oracle.com with ESMTP id 360kf9ny7s-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 14 Jan 2021 15:40:26 +0000 Received: from abhmp0002.oracle.com (abhmp0002.oracle.com [141.146.116.8]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 10EFeMf6016429; Thu, 14 Jan 2021 15:40:22 GMT Received: from jaraman-bur-1.us.oracle.com (/10.152.33.39) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 14 Jan 2021 07:40:22 -0800 From: Jagannathan Raman To: qemu-devel@nongnu.org Subject: [PATCH v19 00/20] Initial support for multi-process Qemu Date: Thu, 14 Jan 2021 10:39:55 -0500 Message-Id: X-Mailer: git-send-email 1.8.3.1 MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9864 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 mlxlogscore=999 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2101140090 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9864 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 suspectscore=0 clxscore=1015 impostorscore=0 spamscore=0 priorityscore=1501 mlxscore=0 phishscore=0 mlxlogscore=999 bulkscore=0 adultscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2101140090 Received-SPF: pass client-ip=141.146.126.79; envelope-from=jag.raman@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=-0.248, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H2=-0.001, 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: elena.ufimtseva@oracle.com, fam@euphon.net, swapnil.ingle@nutanix.com, john.g.johnson@oracle.com, kraxel@redhat.com, jag.raman@oracle.com, quintela@redhat.com, mst@redhat.com, armbru@redhat.com, kanth.ghatraju@oracle.com, felipe@nutanix.com, thuth@redhat.com, ehabkost@redhat.com, konrad.wilk@oracle.com, dgilbert@redhat.com, alex.williamson@redhat.com, stefanha@redhat.com, thanos.makatos@nutanix.com, kwolf@redhat.com, berrange@redhat.com, mreitz@redhat.com, ross.lagerwall@citrix.com, marcandre.lureau@gmail.com, pbonzini@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi, This is the v19 of the patchset. This version has the following changes: [PATCH v18 08/20] io: add qio_channel_readv_full_all_eof & qio_channel_readv_full_all helpers - Preserved fds/nfds if the read was exclusively for fds. Clears then in all other cases. To touch upon the history of this project, we posted the Proof Of Concept patches before the BoF session in 2018. Subsequently, we have posted 18 versions on the qemu-devel mailing list. You can find them by following the links below ([1] - [18]). Following people contributed to the design and implementation of this project: Jagannathan Raman Elena Ufimtseva John G Johnson Stefan Hajnoczi Konrad Wilk Kanth Ghatraju We would like to thank the QEMU community for your feedback in the design and implementation of this project. Qemu wiki page: https://wiki.qemu.org/Features/MultiProcessQEMU For the full concept writeup about QEMU multi-process, please refer to docs/devel/qemu-multiprocess.rst. Also, see docs/qemu-multiprocess.txt for usage information. Thank you for reviewing this series! [POC]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg566538.html [1]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg602285.html [2]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg624877.html [3]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg642000.html [4]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg655118.html [5]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg682429.html [6]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg697484.html [7]: https://patchew.org/QEMU/cover.1593273671.git.elena.ufimtseva@oracle.com/ [8]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg727007.html [9]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg734275.html [10]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg747638.html [11]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg750972.html [12]: https://patchew.org/QEMU/cover.1606853298.git.jag.raman@oracle.com/ [13]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg766825.html [14]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg768376.html [15]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg769178.html [16]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg771455.html Elena Ufimtseva (8): multi-process: add configure and usage information io: add qio_channel_writev_full_all helper io: add qio_channel_readv_full_all_eof & qio_channel_readv_full_all helpers multi-process: define MPQemuMsg format and transmission functions multi-process: introduce proxy object multi-process: add proxy communication functions multi-process: Forward PCI config space acceses to the remote process multi-process: perform device reset in the remote process Jagannathan Raman (11): memory: alloc RAM from file at offset multi-process: Add config option for multi-process QEMU multi-process: setup PCI host bridge for remote device multi-process: setup a machine object for remote device process multi-process: Initialize message handler in remote device multi-process: Associate fd of a PCIDevice with its object multi-process: setup memory manager for remote device multi-process: PCI BAR read/write handling for proxy & remote endpoints multi-process: Synchronize remote memory multi-process: create IOHUB object to handle irq multi-process: Retrieve PCI info from remote process John G Johnson (1): multi-process: add the concept description to docs/devel/qemu-multiprocess docs/devel/index.rst | 1 + docs/devel/multi-process.rst | 966 ++++++++++++++++++++++++++++++ docs/multi-process.rst | 64 ++ configure | 10 + meson.build | 5 +- hw/remote/trace.h | 1 + include/exec/memory.h | 2 + include/exec/ram_addr.h | 2 +- include/hw/pci-host/remote.h | 30 + include/hw/pci/pci_ids.h | 3 + include/hw/remote/iohub.h | 42 ++ include/hw/remote/machine.h | 38 ++ include/hw/remote/memory.h | 19 + include/hw/remote/mpqemu-link.h | 99 +++ include/hw/remote/proxy-memory-listener.h | 28 + include/hw/remote/proxy.h | 48 ++ include/io/channel.h | 76 +++ include/qemu/mmap-alloc.h | 4 +- include/sysemu/iothread.h | 6 + backends/hostmem-memfd.c | 2 +- hw/misc/ivshmem.c | 3 +- hw/pci-host/remote.c | 75 +++ hw/remote/iohub.c | 119 ++++ hw/remote/machine.c | 80 +++ hw/remote/memory.c | 65 ++ hw/remote/message.c | 230 +++++++ hw/remote/mpqemu-link.c | 267 +++++++++ hw/remote/proxy-memory-listener.c | 227 +++++++ hw/remote/proxy.c | 379 ++++++++++++ hw/remote/remote-obj.c | 203 +++++++ io/channel.c | 100 +++- iothread.c | 6 + softmmu/memory.c | 3 +- softmmu/physmem.c | 11 +- util/mmap-alloc.c | 7 +- util/oslib-posix.c | 2 +- Kconfig.host | 4 + MAINTAINERS | 24 + hw/Kconfig | 1 + hw/meson.build | 1 + hw/pci-host/Kconfig | 3 + hw/pci-host/meson.build | 1 + hw/remote/Kconfig | 4 + hw/remote/meson.build | 13 + hw/remote/trace-events | 4 + 45 files changed, 3247 insertions(+), 31 deletions(-) create mode 100644 docs/devel/multi-process.rst create mode 100644 docs/multi-process.rst create mode 100644 hw/remote/trace.h create mode 100644 include/hw/pci-host/remote.h create mode 100644 include/hw/remote/iohub.h create mode 100644 include/hw/remote/machine.h create mode 100644 include/hw/remote/memory.h create mode 100644 include/hw/remote/mpqemu-link.h create mode 100644 include/hw/remote/proxy-memory-listener.h create mode 100644 include/hw/remote/proxy.h create mode 100644 hw/pci-host/remote.c create mode 100644 hw/remote/iohub.c create mode 100644 hw/remote/machine.c create mode 100644 hw/remote/memory.c create mode 100644 hw/remote/message.c create mode 100644 hw/remote/mpqemu-link.c create mode 100644 hw/remote/proxy-memory-listener.c create mode 100644 hw/remote/proxy.c create mode 100644 hw/remote/remote-obj.c create mode 100644 hw/remote/Kconfig create mode 100644 hw/remote/meson.build create mode 100644 hw/remote/trace-events