From patchwork Mon Aug 14 07:08:46 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: 9898223 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 2F45E603B5 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 2129E285A3 for ; Mon, 14 Aug 2017 07:12:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 10EC6285B0; 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 5166E2855A 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 1dh9Uw-0003xL-Ce; Mon, 14 Aug 2017 07:09:14 +0000 Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dh9Uv-0003sm-2y for xen-devel@lists.xenproject.org; Mon, 14 Aug 2017 07:09:13 +0000 Received: from [85.158.139.211] by server-10.bemta-5.messagelabs.com id E3/14-01732-89C41995; Mon, 14 Aug 2017 07:09:12 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrBLMWRWlGSWpSXmKPExsVyuP0Ov+50n4m RBqcu6Vt83zKZyYHR4/CHKywBjFGsmXlJ+RUJrBkL/m1gLejhq9i65ydzA+Nb7i5GTg4JASOJ txP/MXUxcnEICSxklNjVt5YZJMEmoCqx4fopVhBbREBJ4t6qyUwgNrNArsTs9gYwW1jAS+Lr3 ydg9SxA9Z/Wd4HFeQVMJXq3H2OHWCAv0XFgMguIzQkUv7RvKZgtJGAi0be1i2UCI/cCRoZVjB rFqUVlqUW6RkZ6SUWZ6RkluYmZObqGBqZ6uanFxYnpqTmJScV6yfm5mxiB/q1nYGDcwbin3e8 QoyQHk5Iob4JPb6QQX1J+SmVGYnFGfFFpTmrxIUYZDg4lCV4p74mRQoJFqempFWmZOcBAg0lL cPAoifDmgaR5iwsSc4sz0yFSpxiNOTasXv+FiePVhP/fmIRY8vLzUqXEeWNASgVASjNK8+AGw SLgEqOslDAvIwMDgxBPQWpRbmYJqvwrRnEORiVhXiaQKTyZeSVw+14BncIEdEofyBe8xSWJCC mpBsaKHOuUk7NWX5+360Hbk71B5/OZTjU4Skl8e8C1Z/sGTf4EqekPTh9UvvHptuU9v6WhzaJ iO1XaiwPWWgupV+ZY33jV9LvgYHtksdSxYO1Of4Fyrfp9ugFiHnGbuFSNk53dDh/W7b4VZcO/ /ZdmaHjKladtb5lOuStOnrz/zwz7lRdPHc2erqTEUpyRaKjFXFScCABS5UmfewIAAA== X-Env-Sender: jgross@suse.com X-Msg-Ref: server-4.tower-206.messagelabs.com!1502694551!107084198!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 56722 invoked from network); 14 Aug 2017 07:09:11 -0000 Received: from mx2.suse.de (HELO mx1.suse.de) (195.135.220.15) by server-4.tower-206.messagelabs.com with DHE-RSA-CAMELLIA256-SHA encrypted SMTP; 14 Aug 2017 07:09:11 -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 751C6AD5F; Mon, 14 Aug 2017 07:09:11 +0000 (UTC) From: Juergen Gross To: xen-devel@lists.xenproject.org Date: Mon, 14 Aug 2017 09:08:46 +0200 Message-Id: <20170814070849.20986-50-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 49/52] libxc: add function to set hypervisor 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 libxc function 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 --- tools/libxc/include/xenctrl.h | 1 + tools/libxc/xc_misc.c | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+) diff --git a/tools/libxc/include/xenctrl.h b/tools/libxc/include/xenctrl.h index c7710b8f36..ad5e6b3d77 100644 --- a/tools/libxc/include/xenctrl.h +++ b/tools/libxc/include/xenctrl.h @@ -1210,6 +1210,7 @@ int xc_readconsolering(xc_interface *xch, int clear, int incremental, uint32_t *pindex); int xc_send_debug_keys(xc_interface *xch, char *keys); +int xc_set_parameters(xc_interface *xch, char *params); typedef xen_sysctl_physinfo_t xc_physinfo_t; typedef xen_sysctl_cputopo_t xc_cputopo_t; diff --git a/tools/libxc/xc_misc.c b/tools/libxc/xc_misc.c index 2303293c6c..5a34151dd3 100644 --- a/tools/libxc/xc_misc.c +++ b/tools/libxc/xc_misc.c @@ -187,6 +187,26 @@ int xc_send_debug_keys(xc_interface *xch, char *keys) return ret; } +int xc_set_parameters(xc_interface *xch, char *params) +{ + int ret, len = strlen(params); + DECLARE_SYSCTL; + DECLARE_HYPERCALL_BOUNCE(params, len, XC_HYPERCALL_BUFFER_BOUNCE_IN); + + if ( xc_hypercall_bounce_pre(xch, params) ) + return -1; + + sysctl.cmd = XEN_SYSCTL_set_parameter; + set_xen_guest_handle(sysctl.u.set_parameter.params, params); + sysctl.u.set_parameter.size = len; + + ret = do_sysctl(xch, &sysctl); + + xc_hypercall_bounce_post(xch, params); + + return ret; +} + int xc_physinfo(xc_interface *xch, xc_physinfo_t *put_info) {