{"id":2224805,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2224805/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260418133927.43012-1-AlanoSong@163.com/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.1/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":""},"msgid":"<20260418133927.43012-1-AlanoSong@163.com>","date":"2026-04-18T13:39:27","name":"monitor: Add `clear` command","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"cdc5eba33a1fc6208fe6495d36aa0580ba01e756","submitter":{"id":92155,"url":"http://patchwork.ozlabs.org/api/1.1/people/92155/?format=json","name":"Alano Song","email":"AlanoSong@163.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260418133927.43012-1-AlanoSong@163.com/mbox/","series":[{"id":500466,"url":"http://patchwork.ozlabs.org/api/1.1/series/500466/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500466","date":"2026-04-18T13:39:27","name":"monitor: Add `clear` command","version":1,"mbox":"http://patchwork.ozlabs.org/series/500466/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2224805/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2224805/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=163.com header.i=@163.com header.a=rsa-sha256\n header.s=s110527 header.b=ZngS70lR;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists1p.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)"],"Received":["from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fyjsL1J1Bz1yHl\n\tfor ; Sun, 19 Apr 2026 06:24:36 +1000 (AEST)","from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists1p.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from )\n\tid 1wECCS-00018s-9I; Sat, 18 Apr 2026 16:23:32 -0400","from eggs.gnu.org ([2001:470:142:3::10])\n by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from ) id 1wE5tt-0008OU-Jn\n for qemu-devel@nongnu.org; Sat, 18 Apr 2026 09:39:58 -0400","from m16.mail.163.com ([117.135.210.4])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from ) id 1wE5tl-00015p-Sj\n for qemu-devel@nongnu.org; Sat, 18 Apr 2026 09:39:57 -0400","from alano.. (unknown [])\n by gzga-smtp-mtada-g1-1 (Coremail) with SMTP id\n _____wAnbwyRieNpZgJ8AQ--.38013S2;\n Sat, 18 Apr 2026 21:39:29 +0800 (CST)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com;\n s=s110527; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=S+\n 1HLW44bNI9f/DBkTRy2j11jyEQ6a4jbbdW2UT62Bc=; b=ZngS70lRconlWRP7vF\n 5J95qJi/YBVpXD3gjR207brwPRu5Yb527LrX8bhbM0/580Q1pWNDiyvs1Aaoa0ed\n UJKkf8jERbzQjS1kKzCD1dJRDYwNxbpSN2k5UsNsVUajrLHllxbqZkTGVLElaYFf\n UtYbL5h7YgaUnoGsFY3yCUWbo=","From":"AlanoSong@163.com","To":"qemu-devel@nongnu.org","Cc":"dave@treblig.org,\n\tpbonzini@redhat.com,\n\tAlano Song ","Subject":"[PATCH] monitor: Add `clear` command","Date":"Sat, 18 Apr 2026 21:39:27 +0800","Message-ID":"<20260418133927.43012-1-AlanoSong@163.com>","X-Mailer":"git-send-email 2.43.0","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-CM-TRANSID":"_____wAnbwyRieNpZgJ8AQ--.38013S2","X-Coremail-Antispam":"1Uf129KBjvJXoW7CFy8KFyfKrWUuw4rWr4xtFb_yoW8uryDpr\n s3trWrK3y8J3W3ur18Jr9xXF15CrZ7uFZFkFn8Z3s8AF98Jw1Iva1DKr1jk3ZxZrWxKFyS\n vFy2qrWDGa9Fqr7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2\n 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0pR_9NcUUUUU=","X-Originating-IP":"[240e:36f:15d3:7310:8613:2c33:e4f6:6535]","X-CM-SenderInfo":"xdod00pvrqwqqrwthudrp/xtbC9RLZ7WnjiZJ71QAA3s","Received-SPF":"pass client-ip=117.135.210.4; envelope-from=alanosong@163.com;\n helo=m16.mail.163.com","X-Spam_score_int":"-20","X-Spam_score":"-2.1","X-Spam_bar":"--","X-Spam_report":"(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_NONE=0.001, SPF_PASS=-0.001,\n UNPARSEABLE_RELAY=0.001 autolearn=ham autolearn_force=no","X-Spam_action":"no action","X-Mailman-Approved-At":"Sat, 18 Apr 2026 16:23:25 -0400","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"The monitor screen can be cluttered after executing commands\nlike `info qtree`. It is useful to have a command to clear\ncurrent screen, just like linux `clear` command do.\n\nThis patch has been tested under monitors using stdio, vc,\ntcp socket, unix socket and serial interfaces.\n\nSigned-off-by: Alano Song \n---\n hmp-commands.hx | 14 ++++++++++++++\n include/monitor/hmp.h | 1 +\n monitor/hmp-cmds.c | 5 +++++\n 3 files changed, 20 insertions(+)","diff":"diff --git a/hmp-commands.hx b/hmp-commands.hx\nindex 5cc4788f12..95f9166732 100644\n--- a/hmp-commands.hx\n+++ b/hmp-commands.hx\n@@ -20,6 +20,20 @@ SRST\n Show the help for all commands or just for command *cmd*.\n ERST\n \n+ {\n+ .name = \"clear\",\n+ .args_type = \"\",\n+ .params = \"\",\n+ .help = \"clear the monitor screen\",\n+ .cmd = hmp_clear,\n+ .flags = \"p\",\n+ },\n+\n+SRST\n+``clear``\n+ Clear the monitor screen.\n+ERST\n+\n {\n .name = \"commit\",\n .args_type = \"device:B\",\ndiff --git a/include/monitor/hmp.h b/include/monitor/hmp.h\nindex e222bea60c..9b66458d21 100644\n--- a/include/monitor/hmp.h\n+++ b/include/monitor/hmp.h\n@@ -165,6 +165,7 @@ void hmp_trace_event(Monitor *mon, const QDict *qdict);\n void hmp_trace_file(Monitor *mon, const QDict *qdict);\n void hmp_info_trace_events(Monitor *mon, const QDict *qdict);\n void hmp_help(Monitor *mon, const QDict *qdict);\n+void hmp_clear(Monitor *mon, const QDict *qdict);\n void hmp_info_help(Monitor *mon, const QDict *qdict);\n void hmp_info_sync_profile(Monitor *mon, const QDict *qdict);\n void hmp_info_history(Monitor *mon, const QDict *qdict);\ndiff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c\nindex bc26b39d70..3e9485478e 100644\n--- a/monitor/hmp-cmds.c\n+++ b/monitor/hmp-cmds.c\n@@ -218,6 +218,11 @@ void hmp_help(Monitor *mon, const QDict *qdict)\n hmp_help_cmd(mon, qdict_get_try_str(qdict, \"name\"));\n }\n \n+void hmp_clear(Monitor *mon, const QDict *qdict)\n+{\n+ monitor_printf(mon, \"\\x1b[3J\\x1b[2J\\x1b[H\");\n+}\n+\n void hmp_info_help(Monitor *mon, const QDict *qdict)\n {\n hmp_help_cmd(mon, \"info\");\n","prefixes":[]}