From patchwork Thu Aug 31 05:01:46 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "lan,Tianyu" X-Patchwork-Id: 9931909 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 AC0A26016C for ; Thu, 31 Aug 2017 11:12:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A237F2236A for ; Thu, 31 Aug 2017 11:12:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 96E5E23E64; Thu, 31 Aug 2017 11:12:03 +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=-2.7 required=2.0 tests=BAYES_00, DATE_IN_PAST_06_12, 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 C57722892D for ; Thu, 31 Aug 2017 11:12:01 +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 1dnNM1-0000Ms-Rl; Thu, 31 Aug 2017 11:09:45 +0000 Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dnNM1-0000Ml-00 for xen-devel@lists.xen.org; Thu, 31 Aug 2017 11:09:45 +0000 Received: from [193.109.254.147] by server-8.bemta-6.messagelabs.com id B1/E2-03874-87EE7A95; Thu, 31 Aug 2017 11:09:44 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrFLMWRWlGSWpSXmKPExsVywNwkQrf83fJ IgwmrLSyWfFzM4sDocXT3b6YAxijWzLyk/IoE1oxtJxcxFazmqGh+tYyxgXEKWxcjF4eQwHRG ibaTX5m7GDk5JAR4JY4sm8HaxcgBZPtLLH7vAhIWEmhnlNi7vwDEZhNQlzixeCIjiC0iIC1x7 fNlRpA5zAIvGCXmnPjPApIQFgiXmNH8FKyIRUBV4nXHXLA4r4CLxNzv3WwQuxQkpjx8D7aXU8 BVomHSN2aIZS4SLZd2Mk1g5F3AyLCKUaM4tagstUjXyEgvqSgzPaMkNzEzR9fQwEwvN7W4ODE 9NScxqVgvOT93EyMwHBiAYAfjmvmBhxglOZiURHkf3l4eKcSXlJ9SmZFYnBFfVJqTWnyIUYOD Q2DJubnTmaRY8vLzUpUkeN+/AaoTLEpNT61Iy8wBBixMqQQHj5II72KQNG9xQWJucWY6ROoUo 6KUOK/UW6CEAEgiozQPrg0WJZcYZaWEeRmBjhLiKUgtys0sQZV/xSjOwagkzPsKZDxPZl4J3P RXQIuZgBbHei0FWVySiJCSamAsy8g0XMC+vez/ibfijVGyKifkb81b7JC9+MP7LYxlE1OiZC1 8l+VntwQfdfHLrVVfaSOtITrj1dRVf07fy17UXypx93rfCS8DVpfCFeuDJOadbuteudq6SO3x 6YeVDxawKidMKLqyNzTZZu6G6ZPWc5x7VGfSL8i6Y9O0KS8Er+/v/epx3nC/EktxRqKhFnNRc SIAdINLxY0CAAA= X-Env-Sender: tianyu.lan@intel.com X-Msg-Ref: server-10.tower-27.messagelabs.com!1504177781!91147930!1 X-Originating-IP: [192.55.52.88] X-SpamReason: No, hits=0.0 required=7.0 tests=sa_preprocessor: VHJ1c3RlZCBJUDogMTkyLjU1LjUyLjg4ID0+IDM3NDcyNQ==\n X-StarScan-Received: X-StarScan-Version: 9.4.45; banners=-,-,- X-VirusChecked: Checked Received: (qmail 30933 invoked from network); 31 Aug 2017 11:09:43 -0000 Received: from mga01.intel.com (HELO mga01.intel.com) (192.55.52.88) by server-10.tower-27.messagelabs.com with DHE-RSA-AES256-GCM-SHA384 encrypted SMTP; 31 Aug 2017 11:09:43 -0000 Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 Aug 2017 04:09:41 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.41,451,1498546800"; d="scan'208";a="306507757" Received: from sky-ws.sh.intel.com (HELO localhost) ([10.239.48.74]) by fmsmga004.fm.intel.com with ESMTP; 31 Aug 2017 04:09:39 -0700 From: Lan Tianyu To: xen-devel@lists.xen.org Date: Thu, 31 Aug 2017 01:01:46 -0400 Message-Id: <1504155709-24276-2-git-send-email-tianyu.lan@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1504155709-24276-1-git-send-email-tianyu.lan@intel.com> References: <1504155709-24276-1-git-send-email-tianyu.lan@intel.com> Cc: Lan Tianyu , kevin.tian@intel.com, wei.liu2@citrix.com, george.dunlap@eu.citrix.com, andrew.cooper3@citrix.com, ian.jackson@eu.citrix.com, jbeulich@suse.com, roger.pau@citrix.com, chao.gao@intel.com Subject: [Xen-devel] [RFC PATCH V2 1/4] xen/hap: Increase hap page pool size for more vcpus support 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 This patch is to increase hap page pool size to support more vcpus in single VM. Signed-off-by: Lan Tianyu --- xen/arch/x86/mm/hap/hap.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/xen/arch/x86/mm/hap/hap.c b/xen/arch/x86/mm/hap/hap.c index cdc77a9..96a7ed0 100644 --- a/xen/arch/x86/mm/hap/hap.c +++ b/xen/arch/x86/mm/hap/hap.c @@ -464,6 +464,7 @@ void hap_domain_init(struct domain *d) int hap_enable(struct domain *d, u32 mode) { unsigned int old_pages; + unsigned int pages; unsigned int i; int rv = 0; @@ -473,7 +474,14 @@ int hap_enable(struct domain *d, u32 mode) if ( old_pages == 0 ) { paging_lock(d); - rv = hap_set_allocation(d, 256, NULL); + + /* Increase hap page pool with max vcpu number. */ + if ( d->max_vcpus > 128 ) + pages = 256; + else + pages = 512; + + rv = hap_set_allocation(d, pages, NULL); if ( rv != 0 ) { hap_set_allocation(d, 0, NULL);