From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756565Ab1JTKpu (ORCPT ); Thu, 20 Oct 2011 06:45:50 -0400 Received: from smtp.citrix.com ([66.165.176.89]:44130 "EHLO SMTP.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751300Ab1JTKpt (ORCPT ); Thu, 20 Oct 2011 06:45:49 -0400 X-IronPort-AV: E=Sophos;i="4.69,378,1315195200"; d="scan'208";a="18393781" From: David Vrabel To: Konrad Rzeszutek Wilk CC: xen-devel@lists.xensource.com, linux-kernel@vger.kernel.org, David Vrabel , Andrew Morton Subject: [PATCH 0/4] xen: map foreign pages for shared rings by updating the PTEs directly Date: Thu, 20 Oct 2011 11:45:15 +0100 Message-ID: <1319107519-2253-1-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 of patches allows the vmalloc_sync_all() to be removed from alloc_vm_area() by getting the hypervisor to update the PTEs (in init_mm) directly rather than having the hypervisor look in the current page tables to find the PTEs. Once the hypervisor has updated the PTEs, the normal mechanism of syncing the page tables after a fault works as expected. This mechanism doesn't currently work on the ia64 port as that does not support the GNTMAP_contains_pte flag. Andrew, patch 4 (xen: map foreign pages for shared rings by updating the PTEs directly) depends on patch 1 so it's probably best to go via Konrad's Xen tree with your acked-by. David David Vrabel (4): xen: use generic functions instead of xen_{alloc,free}_vm_area() block: xen-blkback: use API provided by xenbus module to map rings net: xen-netback: use API provided by xenbus module to map rings xen: map foreign pages for shared rings by updating the PTEs directly arch/ia64/include/asm/xen/grant_table.h | 29 ----------- arch/ia64/xen/grant-table.c | 62 ------------------------ arch/x86/include/asm/xen/grant_table.h | 7 --- arch/x86/xen/grant-table.c | 2 +- drivers/block/xen-blkback/common.h | 5 +-- drivers/block/xen-blkback/xenbus.c | 54 +++------------------ drivers/net/xen-netback/common.h | 11 ++-- drivers/net/xen-netback/netback.c | 80 +++++++------------------------ drivers/xen/xenbus/xenbus_client.c | 15 ++++-- include/linux/vmalloc.h | 2 +- include/xen/grant_table.h | 1 - mm/vmalloc.c | 27 +++++----- 12 files changed, 55 insertions(+), 240 deletions(-) delete mode 100644 arch/ia64/include/asm/xen/grant_table.h delete mode 100644 arch/x86/include/asm/xen/grant_table.h -- 1.7.2.5