From patchwork Mon Aug 14 07:08:48 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?SsO8cmdlbiBHcm/Dnw==?= X-Patchwork-Id: 9898231 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 93ABF60230 for ; Mon, 14 Aug 2017 07:12:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 86A1B28066 for ; Mon, 14 Aug 2017 07:12:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7B1BE285D4; Mon, 14 Aug 2017 07:12:18 +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=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4CC3628382 for ; Mon, 14 Aug 2017 07:12:15 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dh9V0-0004ES-A0; Mon, 14 Aug 2017 07:09:18 +0000 Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dh9Uy-00044E-TF for xen-devel@lists.xenproject.org; Mon, 14 Aug 2017 07:09:17 +0000 Received: from [85.158.139.211] by server-13.bemta-5.messagelabs.com id A7/48-01732-C9C41995; Mon, 14 Aug 2017 07:09:16 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrKLMWRWlGSWpSXmKPExsVyuP0Ov+4Mn4m RBgvOyFt83zKZyYHR4/CHKywBjFGsmXlJ+RUJrBlPl71iLdgvVvFibUkD41qhLkZODgkBI4m3 E/8xgdhCAgsZJSZN9wax2QRUJTZcP8UKYosIKEncWzUZrIZZIFdidnsDmC0sYC9xrHUtM4jNA lS/q+MvexcjBwevgKnEu4VpEOPlJToOTGYBsTmBwpf2LWWBWGUi0be1i2UCI/cCRoZVjBrFqU VlqUW6RmZ6SUWZ6RkluYmZObqGBqZ6uanFxYnpqTmJScV6yfm5mxiBnq1nYGDcwXh7st8hRkk OJiVR3gSf3kghvqT8lMqMxOKM+KLSnNTiQ4wyHBxKErxS3hMjhQSLUtNTK9Iyc4AhBpOW4OBR EuHNA0nzFhck5hZnpkOkTjEac2xYvf4LE8erCf+/MQmx5OXnpUqJ88aAlAqAlGaU5sENgoX+J UZZKWFeRgYGBiGegtSi3MwSVPlXjOIcjErCvHYgU3gy80rg9r0COoUJ6JQ+kC94i0sSEVJSDY zuulbtB02emnDfPf75ScMaD1WDP4XL36QJbSy5MMN++reVb8QX+SqKmm7Ku/VDlT254fzVB4H vVk6ONjo9f/EcvverGLwT3jrNOXr37JYdN/8YifvMfluj89DX/1fs/43pkT8Wrrx+2U/rzbx9 HEo67qXnFyifLC46niDXsrb1a6NSzO6YRz92KrEUZyQaajEXFScCAINx0U94AgAA X-Env-Sender: jgross@suse.com X-Msg-Ref: server-14.tower-206.messagelabs.com!1502694552!68293281!1 X-Originating-IP: [195.135.220.15] X-SpamReason: No, hits=0.0 required=7.0 tests= X-StarScan-Received: X-StarScan-Version: 9.4.45; banners=-,-,- X-VirusChecked: Checked Received: (qmail 8749 invoked from network); 14 Aug 2017 07:09:12 -0000 Received: from mx2.suse.de (HELO mx1.suse.de) (195.135.220.15) by server-14.tower-206.messagelabs.com with DHE-RSA-CAMELLIA256-SHA encrypted SMTP; 14 Aug 2017 07:09:12 -0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 320ABAD6A; Mon, 14 Aug 2017 07:09:12 +0000 (UTC) From: Juergen Gross To: xen-devel@lists.xenproject.org Date: Mon, 14 Aug 2017 09:08:48 +0200 Message-Id: <20170814070849.20986-52-jgross@suse.com> X-Mailer: git-send-email 2.12.3 In-Reply-To: <20170814070849.20986-1-jgross@suse.com> References: <20170814070849.20986-1-jgross@suse.com> Cc: Juergen Gross , Wei Liu , Ian Jackson Subject: [Xen-devel] [PATCH v2 51/52] xl: add new xl command set-parameters X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP Add a new xl command "set-parameters" to set hypervisor parameters at runtime similar to boot time parameters via command line. Cc: Ian Jackson Cc: Wei Liu Signed-off-by: Juergen Gross Acked-by: Wei Liu --- docs/man/xl.pod.1.in | 5 +++++ tools/xl/xl.h | 1 + tools/xl/xl_cmdtable.c | 5 +++++ tools/xl/xl_misc.c | 20 ++++++++++++++++++++ 4 files changed, 31 insertions(+) diff --git a/docs/man/xl.pod.1.in b/docs/man/xl.pod.1.in index 16c83066fe..3d5f2f7359 100644 --- a/docs/man/xl.pod.1.in +++ b/docs/man/xl.pod.1.in @@ -822,6 +822,11 @@ Pass the VNC password to vncviewer via stdin. Send debug I to Xen. It is the same as pressing the Xen "conswitch" (Ctrl-A by default) three times and then pressing "keys". +=item B I + +Set hypervisor parameters as specified in I. This allows for some +boot parameters of the hypervisor to be modified in the running systems. + =item B [I] Reads the Xen message buffer, similar to dmesg on a Linux system. The diff --git a/tools/xl/xl.h b/tools/xl/xl.h index aa95b77146..5d3d2a4835 100644 --- a/tools/xl/xl.h +++ b/tools/xl/xl.h @@ -154,6 +154,7 @@ int main_rename(int argc, char **argv); int main_trigger(int argc, char **argv); int main_sysrq(int argc, char **argv); int main_debug_keys(int argc, char **argv); +int main_set_parameters(int argc, char **argv); int main_dmesg(int argc, char **argv); int main_top(int argc, char **argv); int main_networkattach(int argc, char **argv); diff --git a/tools/xl/xl_cmdtable.c b/tools/xl/xl_cmdtable.c index 2c71a9f776..ba0159df67 100644 --- a/tools/xl/xl_cmdtable.c +++ b/tools/xl/xl_cmdtable.c @@ -309,6 +309,11 @@ struct cmd_spec cmd_table[] = { "Send debug keys to Xen", "", }, + { "set-parameters", + &main_set_parameters, 0, 1, + "Set hypervisor parameters", + "", + }, { "dmesg", &main_dmesg, 0, 0, "Read and/or clear dmesg buffer", diff --git a/tools/xl/xl_misc.c b/tools/xl/xl_misc.c index 9c6227af23..dcf940a6d4 100644 --- a/tools/xl/xl_misc.c +++ b/tools/xl/xl_misc.c @@ -155,6 +155,26 @@ int main_debug_keys(int argc, char **argv) return EXIT_SUCCESS; } +int main_set_parameters(int argc, char **argv) +{ + int opt; + char *params; + + SWITCH_FOREACH_OPT(opt, "", NULL, "set-parameters", 1) { + /* No options */ + } + + params = argv[optind]; + + if (libxl_set_parameters(ctx, params)) { + fprintf(stderr, "cannot set parameters: %s\n", params); + fprintf(stderr, "Use \"xl dmesg\" to look for possible reason.\n"); + return EXIT_FAILURE; + } + + return EXIT_SUCCESS; +} + int main_devd(int argc, char **argv) { int ret = 0, opt = 0, daemonize = 1;