From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754167AbYJOULR (ORCPT ); Wed, 15 Oct 2008 16:11:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751634AbYJOULB (ORCPT ); Wed, 15 Oct 2008 16:11:01 -0400 Received: from relay2.sgi.com ([192.48.171.30]:43165 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751507AbYJOULA (ORCPT ); Wed, 15 Oct 2008 16:11:00 -0400 Date: Wed, 15 Oct 2008 15:10:58 -0500 From: Russ Anderson To: Ingo Molnar , tglx@linutronix.de, linux-kernel@vger.kernel.org Cc: Huang Ying , Jack Steiner , Russ Anderson Subject: [PATCH 0/7] x86: UV runtime bios calls Message-ID: <20081015201058.GA197213@sgi.com> Reply-To: Russ Anderson Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [PATCH 0/7] x86: UV runtime bios calls Resubmit four patches (per Ingo's request) with three additional patches. Purpose: Create an interface to allow calls into bios to return platform specific information. The interface adds a new EFI table entry for UV. EFI provides a mechanism for defining function pointers to firmware routines. This patchset builds on the EFI mechanism to provide access to those firmware routines for UV. Patches: [1/7] uv_efi_bios: Look for UV entry in EFI tables. [2/7] uv_bios_common: Add the EFI callback function using the EFI table entry. Create associated wrapper code. Initialize UV system table entry info at boot time. [3/7] uv_bios_call_partition: Add call to get partitioning related info. [4/7] uv_sysfs: Create sysfs entrys in /sys/firmware/sgi_uv/ for partitioning related information. [5/7] uv_bios_call_watchlist: Access UV watchlists. [6/7] uv_bios_call_memprotect: Modify UV memory protection. [7/7] uv_bios_call_reserve_page: Access UV reserve page. Implementation comments: This patch adds a new EFI entry type (uv_systab). The location in sysfs (/sys/firmware/sgi_uv/) is based on community feedback. The interface is documented in Documentation/ABI/testing/sysfs-firmware-sgi_uv. If EFI is not configured (CONFIG_EFI), the calls will return -ENOSYS. If run on a system with a bios that does not support EFI UV, the calls will return -ENOSYS. Paul Jackson assisted in the development of this code. -- Russ Anderson, OS RAS/Partitioning Project Lead SGI - Silicon Graphics Inc rja@sgi.com