From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753239Ab2GIKk5 (ORCPT ); Mon, 9 Jul 2012 06:40:57 -0400 Received: from smtp.citrix.com ([66.165.176.89]:6124 "EHLO SMTP.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752811Ab2GIKjh (ORCPT ); Mon, 9 Jul 2012 06:39:37 -0400 X-IronPort-AV: E=Sophos;i="4.77,551,1336363200"; d="scan'208";a="30818188" From: David Vrabel To: xen-devel@lists.xensource.com CC: "David Vrabel" , Konrad Rzeszutek Wilk , x86@kernel.org, "H. Peter Anvin" , linux-kernel@vger.kernel.org Subject: [PATCH 0/4] x86/xen: page fault and context switch performance (v2) Date: Mon, 9 Jul 2012 11:39:04 +0100 Message-ID: <1341830348-15529-1-git-send-email-david.vrabel@citrix.com> X-Mailer: git-send-email 1.7.2.5 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series improves the performance of Xen PV guests when doing page faults (32-bit guests only) and context switches. Can an x86 maintainer ack patch 3 (x86: add desc_equal() to compare GDT descriptors) so this series can go via Konrad's tree? The other patches are Xen-specific. Changes since v1: - fix (very!) slow boot on x86_64 by avoiding hypercalls when building the initial page tables. These updates were mostly a) done to unpinned pages and b) often had invalid MFNs that Xen warns about. - When building the initial page tables, zero PTEs for pages without an MFN yet. - add desc_equal() instead of open coding it. David