From patchwork Thu Mar 7 07:22:12 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Elena Ufimtseva X-Patchwork-Id: 10842323 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A9D3814E1 for ; Thu, 7 Mar 2019 07:44:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 980692E8F0 for ; Thu, 7 Mar 2019 07:44:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 87A922E925; Thu, 7 Mar 2019 07:44:56 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id DCCEE2E907 for ; Thu, 7 Mar 2019 07:44:55 +0000 (UTC) Received: from localhost ([127.0.0.1]:46873 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h1ni2-0004Tf-Rl for patchwork-qemu-devel@patchwork.kernel.org; Thu, 07 Mar 2019 02:44:54 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59993) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h1nMM-0002Zy-9p for qemu-devel@nongnu.org; Thu, 07 Mar 2019 02:22:31 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1h1nMI-0005af-DK for qemu-devel@nongnu.org; Thu, 07 Mar 2019 02:22:27 -0500 Received: from userp2120.oracle.com ([156.151.31.85]:55888) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1h1nMH-0005ZH-4F for qemu-devel@nongnu.org; Thu, 07 Mar 2019 02:22:25 -0500 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x277Jprl038098; Thu, 7 Mar 2019 07:22:21 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id; s=corp-2018-07-02; bh=zR+3bu699ObrmS6qkY38PRRH7G4x2C3EPITE645ODmQ=; b=o31/4UK87mQuAtQfm3xqMdBKBVY0EYlEBoRAwBCzYkCnO6XA1jrfSaaak3UO9LMeMOE6 h2gyx4wE+QagjAHK0seYXuxZ7dTGpJr4+kBrt3OJawDFPY2uLA2tiiMr2gcX/aXc1AJR GKh4zsHnfGiMGutqfFLhzP0v89E0DonR2SWhF6/RRFGPT4vsJj1I+VkHOrdv03ae9q3K Ht0q1ldkgXxN04zV3Ig1Xc5UkbuHEUy4ubpptw/O+bK1wq9T/I4PahPVl/s5FIVYcsIB VWrMrj/8jkoPN4AH/b0fk4YgBS3ey9bYrzA/vD7y4LY9rHYhCb0lCCYw69dmX1cccrBF Ag== Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp2120.oracle.com with ESMTP id 2qyjfrr5en-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 07 Mar 2019 07:22:21 +0000 Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0022.oracle.com (8.14.4/8.14.4) with ESMTP id x277MFIV001098 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 7 Mar 2019 07:22:15 GMT Received: from abhmp0008.oracle.com (abhmp0008.oracle.com [141.146.116.14]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id x277MFs3011683; Thu, 7 Mar 2019 07:22:15 GMT Received: from heatpipe.hsd1.ca.comcast.net (/73.170.27.202) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 06 Mar 2019 23:22:14 -0800 From: elena.ufimtseva@oracle.com To: qemu-devel@nongnu.org Date: Wed, 6 Mar 2019 23:22:12 -0800 Message-Id: <20190307072212.9058-1-elena.ufimtseva@oracle.com> X-Mailer: git-send-email 2.17.1 X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9187 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=3 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1903070053 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 156.151.31.85 Subject: [Qemu-devel] [multiprocess RFC PATCH 20/37] multi-process: Add QMP & HMP commands to list remote processes X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: elena.ufimtseva@oracle.com, john.g.johnson@oracle.com, sstabellini@kernel.org, jag.raman@oracle.com, konrad.wilk@oracle.com, dgilbert@redhat.com, armbru@redhat.com, ross.lagerwall@citrix.com, liran.alon@oracle.com, stefanha@redhat.com, kanth.ghatraju@oracle.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Jagannathan Raman Add query-remote QMP command and remote-proc-list HMP command, to list the remote processes spawned by QEMU. Signed-off-by: Jagannathan Raman Signed-off-by: John G Johnson Signed-off-by: Elena Ufimtseva --- hmp-commands.hx | 16 +++++++++ hmp.h | 1 + hw/proxy/Makefile.objs | 1 + hw/proxy/monitor.c | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++ qapi/block-core.json | 29 ++++++++++++++++ 5 files changed, 136 insertions(+) create mode 100644 hw/proxy/monitor.c diff --git a/hmp-commands.hx b/hmp-commands.hx index 9b40359..fb3c8ba 100644 --- a/hmp-commands.hx +++ b/hmp-commands.hx @@ -725,6 +725,22 @@ STEXI Add device. ETEXI +#if defined(CONFIG_MPQEMU) + { + .name = "remote_proc_list", + .args_type = "", + .params = "", + .help = "list remote devices and their linux process IDs", + .cmd = hmp_remote_proc_list, + }, + +STEXI +@item remote_proc_list +@findex remote_proc_list +List remote devices and their linux process IDs. +ETEXI +#endif + { .name = "device_del", .args_type = "id:s", diff --git a/hmp.h b/hmp.h index e0f32f0..0940634 100644 --- a/hmp.h +++ b/hmp.h @@ -149,5 +149,6 @@ void hmp_hotpluggable_cpus(Monitor *mon, const QDict *qdict); void hmp_info_vm_generation_id(Monitor *mon, const QDict *qdict); void hmp_info_memory_size_summary(Monitor *mon, const QDict *qdict); void hmp_info_sev(Monitor *mon, const QDict *qdict); +void hmp_remote_proc_list(Monitor *mon, const QDict *qdict); #endif diff --git a/hw/proxy/Makefile.objs b/hw/proxy/Makefile.objs index f562f5a..e642060 100644 --- a/hw/proxy/Makefile.objs +++ b/hw/proxy/Makefile.objs @@ -1,2 +1,3 @@ common-obj-$(CONFIG_MPQEMU) += qemu-proxy.o common-obj-$(CONFIG_MPQEMU) += proxy-lsi53c895a.o +common-obj-$(CONFIG_MPQEMU) += monitor.o diff --git a/hw/proxy/monitor.c b/hw/proxy/monitor.c new file mode 100644 index 0000000..3005eec --- /dev/null +++ b/hw/proxy/monitor.c @@ -0,0 +1,89 @@ +/* + * QEMU monitor command handler for multi-process QEMU + * + * Copyright 2019, Oracle and/or its affiliates. All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include + +#include "qemu/osdep.h" +#include "qapi/qapi-types-block-core.h" +#include "qapi/qapi-commands-block-core.h" +#include "monitor/monitor.h" +#include "qemu/option.h" +#include "hmp.h" +#include "hw/boards.h" +#include "hw/i386/pc.h" +#include "hw/proxy/qemu-proxy.h" + +/* + * TODO: Is there a callback where the allocated memory for QMP could be free'd + */ +RemoteProcList *qmp_query_remote(Error **errp) +{ + PCMachineState *pcms = PC_MACHINE(current_machine); + RemoteProcList *proclist, *proc; + GHashTableIter itr; + PCIProxyDev *pdev; + PCIProxyDevClass *k; + DeviceState *d; + char *id; + + proclist = NULL; + + g_hash_table_iter_init(&itr, pcms->remote_devs); + + while (g_hash_table_iter_next(&itr, (gpointer *)&id, (gpointer *)&pdev)) { + k = PCI_PROXY_DEV_GET_CLASS(pdev); + d = DEVICE(pdev); + + proc = g_malloc0(sizeof(RemoteProcList)); + proc->next = proclist; + proclist = proc; + proc->value = g_malloc0(sizeof(RemoteProc)); + proc->value->pid = pdev->remote_pid; + proc->value->id = g_strdup(d->id); + proc->value->proc = g_strdup(k->command); + } + + return proclist; +} + +void hmp_remote_proc_list(Monitor *mon, const QDict *qdict) +{ + PCMachineState *pcms = PC_MACHINE(current_machine); + GHashTableIter itr; + PCIProxyDev *pdev; + PCIProxyDevClass *k; + char *id; + + g_hash_table_iter_init(&itr, pcms->remote_devs); + + monitor_printf(mon, "%8.8s\t%16.16s\t%16.16s\t%16.16s\n\n", "PID", "RID", + "QEMU ID", "PROCESS NAME"); + + while (g_hash_table_iter_next(&itr, (gpointer *)&id, (gpointer *)&pdev)) { + k = PCI_PROXY_DEV_GET_CLASS(pdev); + + monitor_printf(mon, "%8.8d\t%16.16s\t%16.16s\t%16.16s\n", + pdev->remote_pid, pdev->rid, id, k->command); + } +} diff --git a/qapi/block-core.json b/qapi/block-core.json index 2b8afbb..05394c4 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -647,6 +647,23 @@ '*dirty-bitmaps': ['BlockDirtyInfo'] } } ## +# @RemoteProc: +# +# Remote process information. +# +# @id: Device ID +# +# @pid: Linux Process ID +# +# @proc: Process name +# +# Since: 3.0.93 +## +{ 'struct': 'RemoteProc', + 'data': {'id': 'str', 'pid': 'int32', 'proc': 'str' }, + 'if': 'defined(CONFIG_MPQEMU)' } + +## # @BlockMeasureInfo: # # Image file size calculation information. This structure describes the size @@ -768,6 +785,18 @@ ## { 'command': 'query-block', 'returns': ['BlockInfo'] } +## +# @query-remote: +# +# Get a list of all the remote processes spawned by QEMU. +# +# Returns: a list of @RemoteProc describing each remote process. +# +# Since: 3.0.93 +# +## +{ 'command': 'query-remote', 'returns': ['RemoteProc'], + 'if': 'defined(CONFIG_MPQEMU)' } ## # @BlockDeviceTimedStats: