From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752203Ab2HUB1b (ORCPT ); Mon, 20 Aug 2012 21:27:31 -0400 Received: from smtp.eu.citrix.com ([62.200.22.115]:42065 "EHLO SMTP.EU.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750934Ab2HUB12 (ORCPT ); Mon, 20 Aug 2012 21:27:28 -0400 X-IronPort-AV: E=Sophos;i="4.77,799,1336348800"; d="scan'208";a="14095093" From: Attilio Rao To: Konrad Rzeszutek Wilk , Ian Campbell , Stefano Stabellini , Ingo Molnar , "H. Peter Anvin" , Thomas Gleixner , , , CC: Attilio Rao Subject: [PATCH 0/5] X86/XEN: Merge x86_init.paging.pagetable_setup_start and x86_init.paging.pagetable_setup_done PVOPS and document the semantic Date: Tue, 21 Aug 2012 02:14:01 +0100 Message-ID: <1345511646-12427-1-git-send-email-attilio.rao@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 Currently the definition of x86_init.paging.pagetable_setup_start and x86_init.paging.pagetable_setup_done is twisted and not really well defined (in terms of prototypes desired). More specifically: pagetable_setup_start: * it is a nop on x86_32 * it is a nop for the XEN case * cleans up the boot time page table in the x86_64 case pagetable_setup_done: * it is a nop on x86_32 * sets up accessor functions for pagetable manipulation, for the XEN case * it is a nop on x86_64 Most of this logic can be skipped by creating a new PVOPS that can handle pagetable setup and pre/post operations on it. The new PVOPS must be called only once, during boot-time setup and after the direct mapping for physical memory is available. Attilio Rao (5): XEN: Remove the base argument from x86_init.paging.pagetable_setup_done PVOPS XEN: Remove the base argument from x86_init.paging.pagetable_setup_start PVOPS X86/XEN: Introduce the x86_init.paging.pagetable_init() PVOPS X86/XEN: Retire now unused x86_init.paging.pagetable_setup_start and x86_init.paging.pagetable_setup_done PVOPS X86/XEN: Add few lines explaining simple semantic for x86_init.paging.pagetable_init PVOPS arch/x86/include/asm/pgtable_types.h | 6 ++---- arch/x86/include/asm/x86_init.h | 11 +++++++---- arch/x86/kernel/setup.c | 4 +--- arch/x86/kernel/x86_init.c | 4 +--- arch/x86/mm/init_32.c | 12 ++++++------ arch/x86/xen/mmu.c | 18 +++++++----------- 6 files changed, 24 insertions(+), 31 deletions(-) -- 1.7.2.5