From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932114AbXDEAQn (ORCPT ); Wed, 4 Apr 2007 20:16:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932140AbXDEAQn (ORCPT ); Wed, 4 Apr 2007 20:16:43 -0400 Received: from 230.sub-75-208-113.myvzw.com ([75.208.113.230]:36875 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932114AbXDEAQm (ORCPT ); Wed, 4 Apr 2007 20:16:42 -0400 Message-Id: <20070404191205.293858634@goop.org> References: <20070404191151.009821039@goop.org> User-Agent: quilt/0.46-1 Date: Wed, 04 Apr 2007 12:11:57 -0700 From: Jeremy Fitzhardinge To: Andi Kleen Cc: Andrew Morton , virtualization@lists.osdl.org, lkml , Ingo Molnar Subject: [patch 06/20] Allocate a fixmap slot Content-Disposition: inline; filename=paravirt-fixmap.patch Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Allocate a fixmap slot for use by a paravirt_ops implementation. This is intended for early-boot bootstrap mappings. Once the zones and allocator have been set up, it would be better to use get_vm_area() to allocate some virtual space. Xen uses this to map the hypervisor's shared info page, which doesn't have a pseudo-physical page number, and therefore can't be mapped ordinarily. It is needed early because it contains the vcpu state, including the interrupt mask. Signed-off-by: Jeremy Fitzhardinge Acked-by: Ingo Molnar --- include/asm-i386/fixmap.h | 3 +++ 1 file changed, 3 insertions(+) =================================================================== --- a/include/asm-i386/fixmap.h +++ b/include/asm-i386/fixmap.h @@ -86,6 +86,9 @@ enum fixed_addresses { #ifdef CONFIG_PCI_MMCONFIG FIX_PCIE_MCFG, #endif +#ifdef CONFIG_PARAVIRT + FIX_PARAVIRT_BOOTMAP, +#endif __end_of_permanent_fixed_addresses, /* temporary boot-time mappings, used before ioremap() is functional */ #define NR_FIX_BTMAPS 16 --