4359375c31
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>
91 lines
2.3 KiB
C
91 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* xen-stub.c - stub drivers to reserve space for Xen
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*
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* Copyright (C) 2012 Intel Corporation
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* Author: Liu Jinsong <jinsong.liu@intel.com>
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* Author: Jiang Yunhong <yunhong.jiang@intel.com>
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*
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* Copyright (C) 2012 Oracle Inc
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* Author: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/export.h>
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#include <linux/types.h>
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#include <linux/acpi.h>
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#include <xen/acpi.h>
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#ifdef CONFIG_ACPI
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/*--------------------------------------------
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stub driver for Xen memory hotplug
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--------------------------------------------*/
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static const struct acpi_device_id memory_device_ids[] = {
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{ACPI_MEMORY_DEVICE_HID, 0},
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{"", 0},
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};
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static struct acpi_driver xen_stub_memory_device_driver = {
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/* same name as native memory driver to block native loaded */
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.name = "acpi_memhotplug",
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.class = ACPI_MEMORY_DEVICE_CLASS,
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.ids = memory_device_ids,
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};
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int xen_stub_memory_device_init(void)
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{
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if (!xen_initial_domain())
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return -ENODEV;
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/* just reserve space for Xen, block native driver loaded */
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return acpi_bus_register_driver(&xen_stub_memory_device_driver);
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}
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EXPORT_SYMBOL_GPL(xen_stub_memory_device_init);
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subsys_initcall(xen_stub_memory_device_init);
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void xen_stub_memory_device_exit(void)
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{
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acpi_bus_unregister_driver(&xen_stub_memory_device_driver);
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}
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EXPORT_SYMBOL_GPL(xen_stub_memory_device_exit);
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/*--------------------------------------------
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stub driver for Xen cpu hotplug
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--------------------------------------------*/
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static const struct acpi_device_id processor_device_ids[] = {
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{ACPI_PROCESSOR_OBJECT_HID, 0},
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{ACPI_PROCESSOR_DEVICE_HID, 0},
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{"", 0},
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};
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static struct acpi_driver xen_stub_processor_driver = {
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/* same name as native processor driver to block native loaded */
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.name = "processor",
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.class = ACPI_PROCESSOR_CLASS,
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.ids = processor_device_ids,
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};
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int xen_stub_processor_init(void)
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{
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if (!xen_initial_domain())
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return -ENODEV;
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/* just reserve space for Xen, block native driver loaded */
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return acpi_bus_register_driver(&xen_stub_processor_driver);
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}
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EXPORT_SYMBOL_GPL(xen_stub_processor_init);
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subsys_initcall(xen_stub_processor_init);
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void xen_stub_processor_exit(void)
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{
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acpi_bus_unregister_driver(&xen_stub_processor_driver);
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}
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EXPORT_SYMBOL_GPL(xen_stub_processor_exit);
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#endif
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