linux/drivers/xen/xen-stub.c
Thomas Gleixner 4359375c31 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 12
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose good title or non infringement see the gnu general public
  license for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 7 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154041.727898173@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 11:28:45 +02:00

91 lines
2.3 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* xen-stub.c - stub drivers to reserve space for Xen
*
* Copyright (C) 2012 Intel Corporation
* Author: Liu Jinsong <jinsong.liu@intel.com>
* Author: Jiang Yunhong <yunhong.jiang@intel.com>
*
* Copyright (C) 2012 Oracle Inc
* Author: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/export.h>
#include <linux/types.h>
#include <linux/acpi.h>
#include <xen/acpi.h>
#ifdef CONFIG_ACPI
/*--------------------------------------------
stub driver for Xen memory hotplug
--------------------------------------------*/
static const struct acpi_device_id memory_device_ids[] = {
{ACPI_MEMORY_DEVICE_HID, 0},
{"", 0},
};
static struct acpi_driver xen_stub_memory_device_driver = {
/* same name as native memory driver to block native loaded */
.name = "acpi_memhotplug",
.class = ACPI_MEMORY_DEVICE_CLASS,
.ids = memory_device_ids,
};
int xen_stub_memory_device_init(void)
{
if (!xen_initial_domain())
return -ENODEV;
/* just reserve space for Xen, block native driver loaded */
return acpi_bus_register_driver(&xen_stub_memory_device_driver);
}
EXPORT_SYMBOL_GPL(xen_stub_memory_device_init);
subsys_initcall(xen_stub_memory_device_init);
void xen_stub_memory_device_exit(void)
{
acpi_bus_unregister_driver(&xen_stub_memory_device_driver);
}
EXPORT_SYMBOL_GPL(xen_stub_memory_device_exit);
/*--------------------------------------------
stub driver for Xen cpu hotplug
--------------------------------------------*/
static const struct acpi_device_id processor_device_ids[] = {
{ACPI_PROCESSOR_OBJECT_HID, 0},
{ACPI_PROCESSOR_DEVICE_HID, 0},
{"", 0},
};
static struct acpi_driver xen_stub_processor_driver = {
/* same name as native processor driver to block native loaded */
.name = "processor",
.class = ACPI_PROCESSOR_CLASS,
.ids = processor_device_ids,
};
int xen_stub_processor_init(void)
{
if (!xen_initial_domain())
return -ENODEV;
/* just reserve space for Xen, block native driver loaded */
return acpi_bus_register_driver(&xen_stub_processor_driver);
}
EXPORT_SYMBOL_GPL(xen_stub_processor_init);
subsys_initcall(xen_stub_processor_init);
void xen_stub_processor_exit(void)
{
acpi_bus_unregister_driver(&xen_stub_processor_driver);
}
EXPORT_SYMBOL_GPL(xen_stub_processor_exit);
#endif