From nobody Tue Nov 18 09:17:01 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=oracle.com ARC-Seal: i=1; a=rsa-sha256; t=1608705906; cv=none; d=zohomail.com; s=zohoarc; b=JXu9t/gI6ua+8TrndtalqGfXjcnA76o5j7Dtw7l4xRI2ZUHhOKmeQ0AaPKlWOBYyry4ScalEyCNaoLjBIj9a6Q77jew/VpobiQO727HozUzIRAa2olhEy558vJgrvX9W/FVbC6aPZoB1PldRCTH94oSXU3f3jdB6tK2hCLHsYg0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1608705906; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=Qk30eH30ca39oul53gMekHsS4O4F1u7naSeqPkQRPtA=; b=MNyYz39/y2bAZFSo8CZG88eIQm9YumbBNLH7SWgc8U9Ujff12CwC4gd2uwMNfUjmnHMzUOyJuz3l6wXIaEH9ittPIb95V9DdBlV6eAyOh0Y3LTEcBXp5swzM7nHlsl4gifz4pbAQ7nKM4idmH0Izc/0SKYNI+9OnNlvk1iwu3cs= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1608705906343589.5705339965356; Tue, 22 Dec 2020 22:45:06 -0800 (PST) Received: from localhost ([::1]:33506 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1krxtR-0007kC-AL for importer@patchew.org; Wed, 23 Dec 2020 01:45:05 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:41302) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1krxRY-0006AV-0H for qemu-devel@nongnu.org; Wed, 23 Dec 2020 01:16:18 -0500 Received: from userp2130.oracle.com ([156.151.31.86]:36366) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1krxRV-0006Sg-Lz for qemu-devel@nongnu.org; Wed, 23 Dec 2020 01:16:15 -0500 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 0BN691Mk153774; Wed, 23 Dec 2020 06:16:03 GMT Received: from aserp3020.oracle.com (aserp3020.oracle.com [141.146.126.70]) by userp2130.oracle.com with ESMTP id 35ku8drny6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 23 Dec 2020 06:16:03 +0000 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 0BN6G1ma103768; Wed, 23 Dec 2020 06:16:02 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserp3020.oracle.com with ESMTP id 35k0eah2bk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 23 Dec 2020 06:16:02 +0000 Received: from abhmp0016.oracle.com (abhmp0016.oracle.com [141.146.116.22]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id 0BN6Fp2s031979; Wed, 23 Dec 2020 06:15:51 GMT Received: from flaka.hsd1.ca.comcast.net (/67.180.143.163) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 22 Dec 2020 22:15:50 -0800 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 : mime-version : content-transfer-encoding; s=corp-2020-01-29; bh=Qk30eH30ca39oul53gMekHsS4O4F1u7naSeqPkQRPtA=; b=I+9D2uj/Nf5BaV9KTSBsCUSRemVbgSD5qEeId72elqXWgHojCVebWjs9g9Q2Fzc6fqA3 U15FTB0+O2LZuxdiQ+vUPzF3c+b61MhWEn+i52wXTSvgsh1pyzFBjp59+QitMdw7+y/U +tsY03N/Jptng8BkMQfC+JM4ZX/RaoC57QVntThOtWRGjz1C3GqHTIm5ZNNZpQ2bTNh4 Ai07wLH9eZOjajQ5w32xqEImTbtUsS0XLgWdUizNdFYvtbDhWUHGIIQ88FKxjXRy8j6F UJ97W/JE28q8k0l6FNM9Z8FJYG8Tsfd7ZtQMqODCIWW5hLORb1znTNGEuzdD+0gNEYFy AQ== From: elena.ufimtseva@oracle.com To: qemu-devel@nongnu.org Subject: [PATCH v15 20/20] multi-process: perform device reset in the remote process Date: Tue, 22 Dec 2020 22:14:55 -0800 Message-Id: <6501a615fd9edeb8af11c65057c67e2c4da1d287.1608702853.git.elena.ufimtseva@oracle.com> X-Mailer: git-send-email 2.25.GIT In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9843 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 phishscore=0 mlxscore=0 spamscore=0 mlxlogscore=999 suspectscore=0 bulkscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2012230047 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9843 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 adultscore=0 mlxlogscore=999 priorityscore=1501 impostorscore=0 phishscore=0 malwarescore=0 suspectscore=0 lowpriorityscore=0 spamscore=0 clxscore=1015 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2012230046 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=156.151.31.86; envelope-from=elena.ufimtseva@oracle.com; helo=userp2130.oracle.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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: 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" From: Elena Ufimtseva Perform device reset in the remote process when QEMU performs device reset. This is required to reset the internal state (like registers, etc...) of emulated devices Signed-off-by: Elena Ufimtseva Signed-off-by: John G Johnson Signed-off-by: Jagannathan Raman Reviewed-by: Stefan Hajnoczi --- include/hw/remote/mpqemu-link.h | 1 + hw/remote/message.c | 22 ++++++++++++++++++++++ hw/remote/proxy.c | 19 +++++++++++++++++++ 3 files changed, 42 insertions(+) diff --git a/include/hw/remote/mpqemu-link.h b/include/hw/remote/mpqemu-lin= k.h index 0de995e044..49dcad96d7 100644 --- a/include/hw/remote/mpqemu-link.h +++ b/include/hw/remote/mpqemu-link.h @@ -40,6 +40,7 @@ typedef enum { MPQEMU_CMD_BAR_WRITE, MPQEMU_CMD_BAR_READ, MPQEMU_CMD_SET_IRQFD, + MPQEMU_CMD_DEVICE_RESET, MPQEMU_CMD_MAX, } MPQemuCmd; =20 diff --git a/hw/remote/message.c b/hw/remote/message.c index 96ed11d8c6..97e608e4c1 100644 --- a/hw/remote/message.c +++ b/hw/remote/message.c @@ -19,6 +19,7 @@ #include "exec/memattrs.h" #include "hw/remote/memory.h" #include "hw/remote/iohub.h" +#include "sysemu/reset.h" =20 static void process_config_write(QIOChannel *ioc, PCIDevice *dev, MPQemuMsg *msg, Error **errp); @@ -26,6 +27,8 @@ static void process_config_read(QIOChannel *ioc, PCIDevic= e *dev, MPQemuMsg *msg, Error **errp); static void process_bar_write(QIOChannel *ioc, MPQemuMsg *msg, Error **err= p); static void process_bar_read(QIOChannel *ioc, MPQemuMsg *msg, Error **errp= ); +static void process_device_reset_msg(QIOChannel *ioc, PCIDevice *dev, + Error **errp); =20 void coroutine_fn mpqemu_remote_msg_loop_co(void *data) { @@ -69,6 +72,9 @@ void coroutine_fn mpqemu_remote_msg_loop_co(void *data) case MPQEMU_CMD_SET_IRQFD: process_set_irqfd_msg(pci_dev, &msg); break; + case MPQEMU_CMD_DEVICE_RESET: + process_device_reset_msg(com->ioc, pci_dev, &local_err); + break; default: error_setg(&local_err, "Unknown command (%d) received for device %s" @@ -206,3 +212,19 @@ fail: getpid()); } } + +static void process_device_reset_msg(QIOChannel *ioc, PCIDevice *dev, + Error **errp) +{ + DeviceClass *dc =3D DEVICE_GET_CLASS(dev); + DeviceState *s =3D DEVICE(dev); + MPQemuMsg ret =3D { 0 }; + + if (dc->reset) { + dc->reset(s); + } + + ret.cmd =3D MPQEMU_CMD_RET; + + mpqemu_msg_send(&ret, ioc, errp); +} diff --git a/hw/remote/proxy.c b/hw/remote/proxy.c index f0b7d75ecb..1d60b54c37 100644 --- a/hw/remote/proxy.c +++ b/hw/remote/proxy.c @@ -26,6 +26,7 @@ #include "util/event_notifier-posix.c" =20 static void probe_pci_info(PCIDevice *dev, Error **errp); +static void proxy_device_reset(DeviceState *dev); =20 static void proxy_intx_update(PCIDevice *pci_dev) { @@ -202,6 +203,8 @@ static void pci_proxy_dev_class_init(ObjectClass *klass= , void *data) k->config_read =3D pci_proxy_read_config; k->config_write =3D pci_proxy_write_config; =20 + dc->reset =3D proxy_device_reset; + device_class_set_props(dc, proxy_properties); } =20 @@ -358,3 +361,19 @@ static void probe_pci_info(PCIDevice *dev, Error **err= p) } } } + +static void proxy_device_reset(DeviceState *dev) +{ + PCIProxyDev *pdev =3D PCI_PROXY_DEV(dev); + MPQemuMsg msg =3D { 0 }; + Error *local_err =3D NULL; + + msg.cmd =3D MPQEMU_CMD_DEVICE_RESET; + msg.size =3D 0; + + mpqemu_msg_send_and_await_reply(&msg, pdev, &local_err); + if (local_err) { + error_report_err(local_err); + } + +} --=20 2.25.GIT