1 /******************************************************************************
3 * acpi file for domain 0 kernel
5 * Copyright (c) 2011 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
6 * Copyright (c) 2011 Yu Ke ke.yu@intel.com
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License version 2
10 * as published by the Free Software Foundation; or, when distributed
11 * separately from the Linux kernel or incorporated into other
12 * software packages, subject to the following license:
14 * Permission is hereby granted, free of charge, to any person obtaining a copy
15 * of this source file (the "Software"), to deal in the Software without
16 * restriction, including without limitation the rights to use, copy, modify,
17 * merge, publish, distribute, sublicense, and/or sell copies of the Software,
18 * and to permit persons to whom the Software is furnished to do so, subject to
19 * the following conditions:
21 * The above copyright notice and this permission notice shall be included in
22 * all copies or substantial portions of the Software.
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
25 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
26 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
27 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
28 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
29 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
34 #include <xen/interface/platform.h>
35 #include <asm/xen/hypercall.h>
36 #include <asm/xen/hypervisor.h>
38 static int xen_acpi_notify_hypervisor_state(u8 sleep_state
,
42 unsigned int bits
= extended
? 8 : 16;
44 struct xen_platform_op op
= {
45 .cmd
= XENPF_enter_acpi_sleep
,
46 .interface_version
= XENPF_INTERFACE_VERSION
,
47 .u
.enter_acpi_sleep
= {
50 .sleep_state
= sleep_state
,
51 .flags
= extended
? XENPF_ACPI_SLEEP_EXTENDED
: 0,
55 if (WARN((val_a
& (~0 << bits
)) || (val_b
& (~0 << bits
)),
56 "Using more than %u bits of sleep control values %#x/%#x!"
57 "Email xen-devel@lists.xen.org - Thank you.\n", \
61 HYPERVISOR_dom0_op(&op
);
65 int xen_acpi_notify_hypervisor_sleep(u8 sleep_state
,
66 u32 pm1a_cnt
, u32 pm1b_cnt
)
68 return xen_acpi_notify_hypervisor_state(sleep_state
, pm1a_cnt
,
72 int xen_acpi_notify_hypervisor_extended_sleep(u8 sleep_state
,
75 return xen_acpi_notify_hypervisor_state(sleep_state
, val_a
,