/*
 * 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>
 *
 * 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.
 */

#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
 href='/cgit.cgi/linux/net-next.git/commit/include/net?id=3705ccfdd1e8b539225ce20e3925a945cc788d67'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/net/compat.h?id=3705ccfdd1e8b539225ce20e3925a945cc788d67'>compat.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='3705ccfdd1e8b539225ce20e3925a945cc788d67'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Randy Dunlap &lt;rdunlap@infradead.org&gt;</td><td class='right'>2017-01-24 15:18:49 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-24 16:26:14 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/net/compat.h?id=3705ccfdd1e8b539225ce20e3925a945cc788d67'>3705ccfdd1e8b539225ce20e3925a945cc788d67</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/net/compat.h?id=3705ccfdd1e8b539225ce20e3925a945cc788d67'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=3705ccfdd1e8b539225ce20e3925a945cc788d67'>99e56310f1dad0b63ac34307f4e2536a675972b6</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/net/compat.h?id=3705ccfdd1e8b539225ce20e3925a945cc788d67'>include/net/compat.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/net/compat.h?id=f598f82e204ec0b17797caaf1b0311c52d43fb9a'>f598f82e204ec0b17797caaf1b0311c52d43fb9a</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/net/compat.h?id=3705ccfdd1e8b539225ce20e3925a945cc788d67&amp;id2=f598f82e204ec0b17797caaf1b0311c52d43fb9a'>diff</a>)</td></tr></table>
<div class='commit-subject'>mn10300: fix build error of missing fpu_save()</div><div class='commit-msg'>When CONFIG_FPU is not enabled on arch/mn10300, &lt;asm/switch_to.h&gt; causes
a build error with a call to fpu_save():

  kernel/built-in.o: In function `.L410':
  core.c:(.sched.text+0x28a): undefined reference to `fpu_save'

Fix this by including &lt;asm/fpu.h&gt; in &lt;asm/switch_to.h&gt; so that an empty
static inline fpu_save() is defined.

Link: http://lkml.kernel.org/r/dc421c4f-4842-4429-1b99-92865c2f24b6@infradead.org
Signed-off-by: Randy Dunlap &lt;rdunlap@infradead.org&gt;
Reported-by: kbuild test robot &lt;fengguang.wu@intel.com&gt;
Reviewed-by: David Howells &lt;dhowells@redhat.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=3705ccfdd1e8b539225ce20e3925a945cc788d67'>Diffstat</a> (limited to 'include/net/compat.h')</div><table summary='diffstat' class='diffstat'>