From patchwork Wed Aug 16 12:52:17 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: 9903713 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 CEC626038C for ; Wed, 16 Aug 2017 12:55:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BFCC5289DD for ; Wed, 16 Aug 2017 12:55:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B49B9289E1; Wed, 16 Aug 2017 12:55:15 +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 5956C289DD for ; Wed, 16 Aug 2017 12:55:15 +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 1dhxpL-00038d-VG; Wed, 16 Aug 2017 12:53:39 +0000 Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dhxpK-000340-JO for xen-devel@lists.xenproject.org; Wed, 16 Aug 2017 12:53:38 +0000 Received: from [193.109.254.147] by server-5.bemta-6.messagelabs.com id 35/66-03368-25044995; Wed, 16 Aug 2017 12:53:38 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrPLMWRWlGSWpSXmKPExsVyuP0Ov26gw5R Ig39zZS2+b5nM5MDocfjDFZYAxijWzLyk/IoE1oy9L54zF3wTqNi5bDljA+Nb3i5GTg4JASOJ txP/MXUxcnEICSxklGjYPY0FJMEmoCqx4fopVhBbREBJ4t6qyUwgNrNArsTs9gYgm4NDWMBFY tUJbZAwC1D5jK1NjCBhXgETibYjshDj5SU6DkwGm8gJFJ684RiYLSRgLLG9p5F9AiP3AkaGVY zqxalFZalFusZ6SUWZ6RkluYmZObqGBmZ6uanFxYnpqTmJScV6yfm5mxiBnmUAgh2MHf+cDjF KcjApifIGaU2JFOJLyk+pzEgszogvKs1JLT7EKMPBoSTBK2kPlBMsSk1PrUjLzAGGGExagoNH SYTXFSTNW1yQmFucmQ6ROsWoy/Fqwv9vTEIsefl5qVLivLfsgIoEQIoySvPgRsDC/RKjrJQwL yPQUUI8BalFuZklqPKvGMU5GJWEea+CTOHJzCuB2/QK6AgmoCOutE8COaIkESEl1cAomlgWMu ObxM+XXlOcNgg/Lf9z9VXQAbaPFp28kz7F7tzIycPQufOT+IPff7fGrlI51LPeSKDgzslWw73 czW5xJnu0XWTbf6zSD952dzXXtEdTf7OkTf/sYXDbJUnT6aCdYFjItA4m4c83d8m8vnJ4woQn fBPv741n3Gb3Y7fD5IfztF5eNH/Np8RSnJFoqMVcVJwIAGWLJ1RyAgAA X-Env-Sender: jgross@suse.com X-Msg-Ref: server-8.tower-27.messagelabs.com!1502888017!101159019!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 20951 invoked from network); 16 Aug 2017 12:53:37 -0000 Received: from mx2.suse.de (HELO mx1.suse.de) (195.135.220.15) by server-8.tower-27.messagelabs.com with DHE-RSA-CAMELLIA256-SHA encrypted SMTP; 16 Aug 2017 12:53:37 -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 0B08FAEB9; Wed, 16 Aug 2017 12:52:37 +0000 (UTC) From: Juergen Gross To: xen-devel@lists.xenproject.org Date: Wed, 16 Aug 2017 14:52:17 +0200 Message-Id: <20170816125219.5255-51-jgross@suse.com> X-Mailer: git-send-email 2.12.3 In-Reply-To: <20170816125219.5255-1-jgross@suse.com> References: <20170816125219.5255-1-jgross@suse.com> Cc: Juergen Gross , Wei Liu , Ian Jackson Subject: [Xen-devel] [PATCH v3 50/52] libxl: add libxl_set_parameters() function 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 libxl 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 --- V2: - corrected coding style (Wei Liu) - removed superfluous #ifdef (Wei Liu) V3: - use LOGEV() for error message --- tools/libxl/libxl.c | 15 +++++++++++++++ tools/libxl/libxl.h | 8 ++++++++ 2 files changed, 23 insertions(+) diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c index 0ef874406f..247c56cf83 100644 --- a/tools/libxl/libxl.c +++ b/tools/libxl/libxl.c @@ -652,6 +652,21 @@ int libxl_send_debug_keys(libxl_ctx *ctx, char *keys) return 0; } +int libxl_set_parameters(libxl_ctx *ctx, char *params) +{ + int ret; + GC_INIT(ctx); + + ret = xc_set_parameters(ctx->xch, params); + if (ret < 0) { + LOGEV(ERROR, ret, "setting parameters"); + GC_FREE; + return ERROR_FAIL; + } + GC_FREE; + return 0; +} + static int fd_set_flags(libxl_ctx *ctx, int fd, int fcntlgetop, int fcntlsetop, const char *fl, int flagmask, int set_p) diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h index 229e289750..17045253ab 100644 --- a/tools/libxl/libxl.h +++ b/tools/libxl/libxl.h @@ -1051,6 +1051,13 @@ void libxl_mac_copy(libxl_ctx *ctx, libxl_mac *dst, const libxl_mac *src); */ #define LIBXL_HAVE_QED 1 +/* + * LIBXL_HAVE_SET_PARAMETERS + * + * If this is defined setting hypervisor parameters is supported. + */ +#define LIBXL_HAVE_SET_PARAMETERS 1 + typedef char **libxl_string_list; void libxl_string_list_dispose(libxl_string_list *sl); int libxl_string_list_length(const libxl_string_list *sl); @@ -2105,6 +2112,7 @@ int libxl_send_trigger(libxl_ctx *ctx, uint32_t domid, libxl_trigger trigger, uint32_t vcpuid); int libxl_send_sysrq(libxl_ctx *ctx, uint32_t domid, char sysrq); int libxl_send_debug_keys(libxl_ctx *ctx, char *keys); +int libxl_set_parameters(libxl_ctx *ctx, char *params); typedef struct libxl__xen_console_reader libxl_xen_console_reader;