From patchwork Mon Nov 13 15:41:16 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: George Dunlap X-Patchwork-Id: 10056307 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 2761A60215 for ; Mon, 13 Nov 2017 15:44:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 19DED2941E for ; Mon, 13 Nov 2017 15:44:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0E9232945D; Mon, 13 Nov 2017 15:44:19 +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 B683B2941E for ; Mon, 13 Nov 2017 15:44:18 +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 1eEGrk-0007u2-MS; Mon, 13 Nov 2017 15:41:40 +0000 Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eEGri-0007sl-Qb for xen-devel@lists.xenproject.org; Mon, 13 Nov 2017 15:41:38 +0000 Received: from [85.158.137.68] by server-11.bemta-3.messagelabs.com id CB/83-00647-13DB90A5; Mon, 13 Nov 2017 15:41:37 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprGIsWRWlGSWpSXmKPExsXitHSDva7hXs4 og7Ylghbft0xmcmD0OPzhCksAYxRrZl5SfkUCa8aWS1/YC65wVRxZM4uxgbGNs4uRk0NCwF/i xcN/7CA2m4CexLzjX1m6GDk4RARUJG7vNehi5OJgFrjMJPFp8WU2kBphAWuJba1H2EBqWARUJ XYeTwEJ8wrYSsxuucYGMVJeYvH3nWA2p4CdxMUvK5lAbCGgmg/rZrJD2KoSix8cZYfoFZQ4Of MJC4jNLCAhcfDFC+YJjLyzkKRmIUktYGRaxahRnFpUllqka2ygl1SUmZ5RkpuYmaNraGCsl5t aXJyYnpqTmFSsl5yfu4kRGDr1DAyMOxg7T/gdYpTkYFIS5VX5zB4lxJeUn1KZkVicEV9UmpNa fIhRhoNDSYLXbQ9nlJBgUWp6akVaZg4wiGHSEhw8SiK8e3YDpXmLCxJzizPTIVKnGI05ns183 cDMMe1qaxOzEEtefl6qlDivEsgkAZDSjNI8uEGw6LrEKCslzMvIwMAgxFOQWpSbWYIq/4pRnI NRSZhXDmQKT2ZeCdy+V0CnMAGdIgXyBW9xSSJCSqqBsU9iw8F/v3hSNiw1nPz6vZm52gYVkcB Dihu/yixVEX/7+PuVKdcNF9Rn6rAkvOX6fZa/X33Ksb9p0cf/l6pJvgq3CHFv6m3O2hz6l69x mnfCghUSFy5/F1n5Mt7YSPg6h5vTsgd5kkpreHMnHfk4c5HUa8bgN3rT+FSuS19ZbH/g7UH+x 4Up/5VYijMSDbWYi4oTAUTyYLKpAgAA X-Env-Sender: prvs=483948db6=George.Dunlap@citrix.com X-Msg-Ref: server-9.tower-31.messagelabs.com!1510587693!59267233!3 X-Originating-IP: [66.165.176.63] X-SpamReason: No, hits=0.0 required=7.0 tests=sa_preprocessor: VHJ1c3RlZCBJUDogNjYuMTY1LjE3Ni42MyA9PiAzMDYwNDg=\n, received_headers: No Received headers X-StarScan-Received: X-StarScan-Version: 9.4.45; banners=-,-,- X-VirusChecked: Checked Received: (qmail 27649 invoked from network); 13 Nov 2017 15:41:36 -0000 Received: from smtp02.citrix.com (HELO SMTP02.CITRIX.COM) (66.165.176.63) by server-9.tower-31.messagelabs.com with RC4-SHA encrypted SMTP; 13 Nov 2017 15:41:36 -0000 X-IronPort-AV: E=Sophos;i="5.44,389,1505779200"; d="scan'208";a="459179688" From: George Dunlap To: Date: Mon, 13 Nov 2017 15:41:16 +0000 Message-ID: <20171113154126.13038-6-george.dunlap@citrix.com> X-Mailer: git-send-email 2.15.0 In-Reply-To: <20171113154126.13038-1-george.dunlap@citrix.com> References: <20171113154126.13038-1-george.dunlap@citrix.com> MIME-Version: 1.0 Cc: Stefano Stabellini , Wei Liu , Konrad Wilk , Andrew Cooper , Tim Deegan , George Dunlap , Julien Grall , Jan Beulich , Ian Jackson Subject: [Xen-devel] [PATCH 06/16] SUPPORT.md: Add scalability features 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: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP Superpage support and PVHVM. Signed-off-by: George Dunlap --- CC: Ian Jackson CC: Wei Liu CC: Andrew Cooper CC: Jan Beulich CC: Stefano Stabellini CC: Konrad Wilk CC: Tim Deegan CC: Julien Grall --- SUPPORT.md | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/SUPPORT.md b/SUPPORT.md index c884fac7f5..a8c56d13dd 100644 --- a/SUPPORT.md +++ b/SUPPORT.md @@ -195,6 +195,27 @@ on embedded platforms. Enables NUMA aware scheduling in Xen +## Scalability + +### 1GB/2MB super page support + + Status, x86 HVM/PVH: : Supported + Status, ARM: Supported + +NB that this refers to the ability of guests +to have higher-level page table entries point directly to memory, +improving TLB performance. +This is independent of the ARM "page granularity" feature (see below). + +### x86/PVHVM + + Status: Supported + +This is a useful label for a set of hypervisor features +which add paravirtualized functionality to HVM guests +for improved performance and scalability. +This includes exposing event channels to HVM guests. + # Format and definitions This file contains prose, and machine-readable fragments.