Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964835AbWEOIuq (ORCPT ); Mon, 15 May 2006 04:50:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964845AbWEOIuq (ORCPT ); Mon, 15 May 2006 04:50:46 -0400 Received: from mtagate3.de.ibm.com ([195.212.29.152]:14228 "EHLO mtagate3.de.ibm.com") by vger.kernel.org with ESMTP id S964835AbWEOIup (ORCPT ); Mon, 15 May 2006 04:50:45 -0400 Date: Mon, 15 May 2006 10:50:50 +0200 From: Michael Holzheu To: akpm@osdl.org, greg@kroah.com Cc: ioe-lkml@rameria.de, joern@wohnheim.fh-wedel.de, linux-kernel@vger.kernel.org, mschwid2@de.ibm.com, penberg@cs.helsinki.fi Subject: [PATCH 1/2] create /sys/hypervisor when needed Message-Id: <20060515105050.027148f7.holzheu@de.ibm.com> Organization: IBM X-Mailer: Sylpheed version 1.0.6 (GTK+ 1.2.10; i486-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4321 Lines: 108 To have a home for all hypervisors, this patch creates /sys/hypervisor. A new config option SYS_HYPERVISOR is introduced, which should to be set by architecture dependent hypervisors (e.g. s390 or Xen). Acked-by: Martin Schwidefsky Signed-off-by: Michael Holzheu --- drivers/base/Kconfig | 4 ++++ drivers/base/Makefile | 1 + drivers/base/base.h | 5 +++++ drivers/base/hypervisor.c | 20 ++++++++++++++++++++ drivers/base/init.c | 1 + include/linux/kobject.h | 2 ++ 6 files changed, 33 insertions(+) diff -urpN linux-2.6.17-rc3-mm1/drivers/base/Kconfig linux-2.6.17-rc3-mm1-sys-hypervisor/drivers/base/Kconfig --- linux-2.6.17-rc3-mm1/drivers/base/Kconfig 2006-05-08 15:56:23.000000000 +0200 +++ linux-2.6.17-rc3-mm1-sys-hypervisor/drivers/base/Kconfig 2006-05-08 16:00:58.000000000 +0200 @@ -38,3 +38,7 @@ config DEBUG_DRIVER If you are unsure about this, say N here. endmenu + +config SYS_HYPERVISOR + bool + default n diff -urpN linux-2.6.17-rc3-mm1/drivers/base/Makefile linux-2.6.17-rc3-mm1-sys-hypervisor/drivers/base/Makefile --- linux-2.6.17-rc3-mm1/drivers/base/Makefile 2006-05-08 15:56:23.000000000 +0200 +++ linux-2.6.17-rc3-mm1-sys-hypervisor/drivers/base/Makefile 2006-05-08 16:00:41.000000000 +0200 @@ -9,6 +9,7 @@ obj-$(CONFIG_FW_LOADER) += firmware_clas obj-$(CONFIG_NUMA) += node.o obj-$(CONFIG_MEMORY_HOTPLUG) += memory.o obj-$(CONFIG_SMP) += topology.o +obj-$(CONFIG_SYS_HYPERVISOR) += hypervisor.o ifeq ($(CONFIG_DEBUG_DRIVER),y) EXTRA_CFLAGS += -DDEBUG diff -urpN linux-2.6.17-rc3-mm1/drivers/base/base.h linux-2.6.17-rc3-mm1-sys-hypervisor/drivers/base/base.h --- linux-2.6.17-rc3-mm1/drivers/base/base.h 2006-05-12 18:23:05.000000000 +0200 +++ linux-2.6.17-rc3-mm1-sys-hypervisor/drivers/base/base.h 2006-05-12 18:13:55.000000000 +0200 @@ -5,6 +5,11 @@ extern int devices_init(void); extern int buses_init(void); extern int classes_init(void); extern int firmware_init(void); +#ifdef CONFIG_SYS_HYPERVISOR +extern int hypervisor_init(void); +#else +static inline int hypervisor_init(void) { return 0; } +#endif extern int platform_bus_init(void); extern int system_bus_init(void); extern int cpu_dev_init(void); diff -urpN linux-2.6.17-rc3-mm1/drivers/base/hypervisor.c linux-2.6.17-rc3-mm1-sys-hypervisor/drivers/base/hypervisor.c --- linux-2.6.17-rc3-mm1/drivers/base/hypervisor.c 1970-01-01 01:00:00.000000000 +0100 +++ linux-2.6.17-rc3-mm1-sys-hypervisor/drivers/base/hypervisor.c 2006-05-12 18:21:43.000000000 +0200 @@ -0,0 +1,20 @@ +/* + * hypervisor.c - /sys/hypervisor subsystem. + * + * Copyright (C) IBM Corp. 2006 + * + * This file is released under the GPLv2 + */ + +#include +#include + +#include "base.h" + +decl_subsys(hypervisor, NULL, NULL); +EXPORT_SYMBOL_GPL(hypervisor_subsys); + +int __init hypervisor_init(void) +{ + return subsystem_register(&hypervisor_subsys); +} diff -urpN linux-2.6.17-rc3-mm1/drivers/base/init.c linux-2.6.17-rc3-mm1-sys-hypervisor/drivers/base/init.c --- linux-2.6.17-rc3-mm1/drivers/base/init.c 2006-05-08 15:56:23.000000000 +0200 +++ linux-2.6.17-rc3-mm1-sys-hypervisor/drivers/base/init.c 2006-05-08 16:00:07.000000000 +0200 @@ -27,6 +27,7 @@ void __init driver_init(void) buses_init(); classes_init(); firmware_init(); + hypervisor_init(); /* These are also core pieces, but must come after the * core core pieces. diff -urpN linux-2.6.17-rc3-mm1/include/linux/kobject.h linux-2.6.17-rc3-mm1-sys-hypervisor/include/linux/kobject.h --- linux-2.6.17-rc3-mm1/include/linux/kobject.h 2006-05-12 18:23:08.000000000 +0200 +++ linux-2.6.17-rc3-mm1-sys-hypervisor/include/linux/kobject.h 2006-05-12 18:13:58.000000000 +0200 @@ -190,6 +190,8 @@ struct subsystem _varname##_subsys = { \ /* The global /sys/kernel/ subsystem for people to chain off of */ extern struct subsystem kernel_subsys; +/* The global /sys/hypervisor/ subsystem */ +extern struct subsystem hypervisor_subsys; /** * Helpers for setting the kset of registered objects. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/