From patchwork Thu Oct 24 09:08:53 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jag Raman X-Patchwork-Id: 11208749 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1B55A13B1 for ; Thu, 24 Oct 2019 09:45:35 +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 E3C5F20684 for ; Thu, 24 Oct 2019 09:45:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="Lo4AQ553" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E3C5F20684 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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:36950 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iNZgT-0002xe-1J for patchwork-qemu-devel@patchwork.kernel.org; Thu, 24 Oct 2019 05:45:33 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:44383) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iNZAX-000286-SU for qemu-devel@nongnu.org; Thu, 24 Oct 2019 05:12:35 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iNZAW-0005MP-My for qemu-devel@nongnu.org; Thu, 24 Oct 2019 05:12:33 -0400 Received: from aserp2120.oracle.com ([141.146.126.78]:33392) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iNZAW-0005Jw-Ee for qemu-devel@nongnu.org; Thu, 24 Oct 2019 05:12:32 -0400 Received: from pps.filterd (aserp2120.oracle.com [127.0.0.1]) by aserp2120.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x9O94M1Y099578; Thu, 24 Oct 2019 09:12:22 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 : in-reply-to : references; s=corp-2019-08-05; bh=Xh2odBnS5dKeeUhdClD/GLP4LQ+P8oTji3dSDPB7dIU=; b=Lo4AQ553ozsyLt95cFbKUOwZtQzdfqMu6X6asCC3EaFS7Qh5JG2vFMgTYWo3oGZmSZP0 rhua3whqy50M8LBJzb02LUvaZXwTHhKth//WcBsqHlHcj8+bBH76XLLVZUR5NTFmt0Qb YxAf5MuV3SXZA7TdWhzPCFeBDCTaMA8p4Z5XGtiroC5BNkZcRKDDSi0mTZtAEBbc042h CUCa3IznYtIBSkz/7l76WX/9DpFtUe2vwCmIhtNDLcx26eVueKqeqbXoz85canJTldBs R2ihhMhV7Z8TBse+rQ6rajPmuLANhSa7RpOi/31ZZgP9xAtx0a7l/J29R4IYYNeEtOZl aQ== Received: from aserp3020.oracle.com (aserp3020.oracle.com [141.146.126.70]) by aserp2120.oracle.com with ESMTP id 2vqteq2ant-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 24 Oct 2019 09:12:22 +0000 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x9O98LDH047145; Thu, 24 Oct 2019 09:10:22 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserp3020.oracle.com with ESMTP id 2vu0fnu6r2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 24 Oct 2019 09:10:22 +0000 Received: from abhmp0008.oracle.com (abhmp0008.oracle.com [141.146.116.14]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id x9O9AKa7009131; Thu, 24 Oct 2019 09:10:20 GMT Received: from jaraman-bur-1.us.oracle.com (/10.152.33.39) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 24 Oct 2019 02:10:19 -0700 From: Jagannathan Raman To: qemu-devel@nongnu.org Subject: [RFC v4 PATCH 12/49] multi-process: remote process initialization Date: Thu, 24 Oct 2019 05:08:53 -0400 Message-Id: X-Mailer: git-send-email 1.8.3.1 In-Reply-To: References: In-Reply-To: References: X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9419 signatures=668684 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=3 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910240089 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9419 signatures=668684 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=8.0.1-1908290000 definitions=main-1910240089 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 141.146.126.78 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, 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, thuth@redhat.com, ehabkost@redhat.com, konrad.wilk@oracle.com, dgilbert@redhat.com, liran.alon@oracle.com, stefanha@redhat.com, rth@twiddle.net, 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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" Adds the handler to process message from QEMU, Initialize remote process main loop, handles SYNC_SYSMEM message by updating its "system_memory" container using shared file descriptors received from QEMU. Signed-off-by: John G Johnson Signed-off-by: Elena Ufimtseva Signed-off-by: Jagannathan Raman --- v1 -> v2: - Separate thread for message processing is removed v2 -> v3: - Added multi-channel support in the remote end remote/remote-main.c | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) diff --git a/remote/remote-main.c b/remote/remote-main.c index bf44310..7689b57 100644 --- a/remote/remote-main.c +++ b/remote/remote-main.c @@ -26,6 +26,7 @@ #include "qemu-common.h" #include +#include #include "qemu/module.h" #include "remote/pcihost.h" @@ -33,12 +34,91 @@ #include "hw/boards.h" #include "hw/qdev-core.h" #include "qemu/main-loop.h" +#include "remote/memory.h" +#include "io/mpqemu-link.h" +#include "qapi/error.h" +#include "qemu/main-loop.h" +#include "sysemu/cpus.h" +#include "qemu-common.h" +#include "hw/pci/pci.h" +#include "qemu/thread.h" +#include "qemu/main-loop.h" +#include "qemu/config-file.h" +#include "sysemu/sysemu.h" +#include "block/block.h" + +static MPQemuLinkState *mpqemu_link; +PCIDevice *remote_pci_dev; + +static void process_msg(GIOCondition cond, MPQemuChannel *chan) +{ + MPQemuMsg *msg = NULL; + Error *err = NULL; + + if ((cond & G_IO_HUP) || (cond & G_IO_ERR)) { + error_setg(&err, "socket closed, cond is %d", cond); + goto finalize_loop; + } + + msg = g_malloc0(sizeof(MPQemuMsg)); + + if (mpqemu_msg_recv(mpqemu_link, msg, chan) < 0) { + error_setg(&err, "Failed to receive message"); + goto finalize_loop; + } + + switch (msg->cmd) { + case INIT: + break; + case CONF_WRITE: + break; + case CONF_READ: + break; + default: + error_setg(&err, "Unknown command"); + goto finalize_loop; + } + + g_free(msg); + + return; + +finalize_loop: + error_report_err(err); + g_free(msg); + mpqemu_link_finalize(mpqemu_link); + mpqemu_link = NULL; +} int main(int argc, char *argv[]) { + Error *err = NULL; + module_call_init(MODULE_INIT_QOM); + bdrv_init_with_whitelist(); + + if (qemu_init_main_loop(&err)) { + error_report_err(err); + return -EBUSY; + } + + qemu_init_cpu_loop(); + + page_size_init(); + current_machine = MACHINE(REMOTE_MACHINE(object_new(TYPE_REMOTE_MACHINE))); + mpqemu_link = mpqemu_link_create(); + if (!mpqemu_link) { + printf("Could not create MPQemu link\n"); + return -1; + } + + mpqemu_init_channel(mpqemu_link, &mpqemu_link->com, STDIN_FILENO); + mpqemu_link_set_callback(mpqemu_link, process_msg); + + mpqemu_start_coms(mpqemu_link); + return 0; }