{"id":819529,"url":"http://patchwork.ozlabs.org/api/patches/819529/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/150659508020.25889.6902174235452755801.stgit@aravinda/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<150659508020.25889.6902174235452755801.stgit@aravinda>","list_archive_url":null,"date":"2017-09-28T10:38:00","name":"[v5,3/6] Wrapper function to wait on condition for the main loop mutex","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"805e332c9e1c0717b549bbe1c1e03abbb3aaf61d","submitter":{"id":18580,"url":"http://patchwork.ozlabs.org/api/people/18580/?format=json","name":"Aravinda Prasad","email":"aravinda@linux.vnet.ibm.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/150659508020.25889.6902174235452755801.stgit@aravinda/mbox/","series":[{"id":5534,"url":"http://patchwork.ozlabs.org/api/series/5534/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=5534","date":"2017-09-28T10:37:28","name":"target-ppc/spapr: Add FWNMI support in QEMU for PowerKVM guests","version":5,"mbox":"http://patchwork.ozlabs.org/series/5534/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/819529/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/819529/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=)","Received":["from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3y2rlY1dBJz9tXp\n\tfor ;\n\tThu, 28 Sep 2017 20:39:05 +1000 (AEST)","from localhost ([::1]:58367 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t)\n\tid 1dxWDf-0003qQ-7q\n\tfor incoming@patchwork.ozlabs.org; Thu, 28 Sep 2017 06:39:03 -0400","from eggs.gnu.org ([2001:4830:134:3::10]:50539)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from ) id 1dxWCt-0003ms-Cd\n\tfor qemu-devel@nongnu.org; Thu, 28 Sep 2017 06:38:19 -0400","from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from ) id 1dxWCp-0007jQ-EZ\n\tfor qemu-devel@nongnu.org; Thu, 28 Sep 2017 06:38:15 -0400","from mx0b-001b2d01.pphosted.com ([148.163.158.5]:34816\n\thelo=mx0a-001b2d01.pphosted.com)\n\tby eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from )\n\tid 1dxWCp-0007jJ-8E\n\tfor qemu-devel@nongnu.org; Thu, 28 Sep 2017 06:38:11 -0400","from pps.filterd (m0098414.ppops.net [127.0.0.1])\n\tby mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tv8SAZ0E0004674\n\tfor ; Thu, 28 Sep 2017 06:38:10 -0400","from e12.ny.us.ibm.com (e12.ny.us.ibm.com [129.33.205.202])\n\tby mx0b-001b2d01.pphosted.com with ESMTP id 2d8vvqguyu-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor ; Thu, 28 Sep 2017 06:38:10 -0400","from localhost\n\tby e12.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! Violators will be prosecuted\n\tfor from ;\n\tThu, 28 Sep 2017 06:38:10 -0400","from b01cxnp23033.gho.pok.ibm.com (9.57.198.28)\n\tby e12.ny.us.ibm.com (146.89.104.199) with IBM ESMTP SMTP Gateway:\n\tAuthorized Use Only! Violators will be prosecuted; \n\tThu, 28 Sep 2017 06:38:06 -0400","from b01ledav001.gho.pok.ibm.com (b01ledav001.gho.pok.ibm.com\n\t[9.57.199.106])\n\tby b01cxnp23033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP\n\tid v8SAc5Cq58261678; Thu, 28 Sep 2017 10:38:05 GMT","from b01ledav001.gho.pok.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id 588C82810E;\n\tThu, 28 Sep 2017 06:37:58 -0400 (EDT)","from [127.0.1.1] (unknown [9.84.218.194])\n\tby b01ledav001.gho.pok.ibm.com (Postfix) with ESMTP id 229AB280F8;\n\tThu, 28 Sep 2017 06:37:54 -0400 (EDT)"],"From":"Aravinda Prasad ","To":"qemu-ppc@nongnu.org, qemu-devel@nongnu.org, david@gibson.dropbear.id.au","Date":"Thu, 28 Sep 2017 16:08:00 +0530","In-Reply-To":"<150659494872.25889.2069124544245723984.stgit@aravinda>","References":"<150659494872.25889.2069124544245723984.stgit@aravinda>","User-Agent":"StGit/0.17.1-dirty","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","X-TM-AS-GCONF":"00","x-cbid":"17092810-0048-0000-0000-000001ECA0FF","X-IBM-SpamModules-Scores":"","X-IBM-SpamModules-Versions":"BY=3.00007804; HX=3.00000241; KW=3.00000007;\n\tPH=3.00000004; SC=3.00000232; SDB=6.00923539; UDB=6.00464295;\n\tIPR=6.00703677; \n\tBA=6.00005611; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009;\n\tZB=6.00000000; \n\tZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00017301;\n\tXFM=3.00000015; UTC=2017-09-28 10:38:08","X-IBM-AV-DETECTION":"SAVI=unused REMOTE=unused XFE=unused","x-cbparentid":"17092810-0049-0000-0000-000042B43A30","Message-Id":"<150659508020.25889.6902174235452755801.stgit@aravinda>","X-Proofpoint-Virus-Version":"vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-09-28_04:, , signatures=0","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n\tspamscore=0 suspectscore=0\n\tmalwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam\n\tadjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000\n\tdefinitions=main-1709280158","X-detected-operating-system":"by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy]","X-Received-From":"148.163.158.5","Subject":"[Qemu-devel] [PATCH v5 3/6] Wrapper function to wait on condition\n\tfor the main loop mutex","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Cc":"aik@ozlabs.ru, benh@au1.ibm.com, paulus@samba.org,\n\tsam.bobroff@au1.ibm.com","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"\"Qemu-devel\"\n\t"},"content":"Introduce a wrapper function to wait on condition for\nthe main loop mutex. This function atomically releases\nthe main loop mutex and causes the calling thread to\nblock on the condition.\n\nSigned-off-by: Aravinda Prasad \n---\n cpus.c | 5 +++++\n include/qemu/main-loop.h | 8 ++++++++\n 2 files changed, 13 insertions(+)","diff":"diff --git a/cpus.c b/cpus.c\nindex c9a6240..60be7f2 100644\n--- a/cpus.c\n+++ b/cpus.c\n@@ -1589,6 +1589,11 @@ void qemu_mutex_unlock_iothread(void)\n qemu_mutex_unlock(&qemu_global_mutex);\n }\n \n+void qemu_cond_wait_iothread(QemuCond *cond)\n+{\n+ qemu_cond_wait(cond, &qemu_global_mutex);\n+}\n+\n static bool all_vcpus_paused(void)\n {\n CPUState *cpu;\ndiff --git a/include/qemu/main-loop.h b/include/qemu/main-loop.h\nindex 6b4b60b..618cb2f 100644\n--- a/include/qemu/main-loop.h\n+++ b/include/qemu/main-loop.h\n@@ -279,6 +279,14 @@ void qemu_mutex_lock_iothread(void);\n */\n void qemu_mutex_unlock_iothread(void);\n \n+/**\n+ * qemu_cond_wait_iothread: Wait on condition for the main loop mutex\n+ *\n+ * This function atomically releases the main loop mutex and causes\n+ * the calling thread to block on the condition.\n+ */\n+void qemu_cond_wait_iothread(QemuCond *cond);\n+\n /* internal interfaces */\n \n void qemu_fd_register(int fd);\n","prefixes":["v5","3/6"]}