| /****************************************************************************** |
| * acpi.h |
| * acpi file for domain 0 kernel |
| * |
| * Copyright (c) 2011 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
| * Copyright (c) 2011 Yu Ke <ke.yu@intel.com> |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License version 2 |
| * as published by the Free Software Foundation; or, when distributed |
| * separately from the Linux kernel or incorporated into other |
| * software packages, subject to the following license: |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this source file (the "Software"), to deal in the Software without |
| * restriction, including without limitation the rights to use, copy, modify, |
| * merge, publish, distribute, sublicense, and/or sell copies of the Software, |
| * and to permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| */ |
| |
| #ifndef _XEN_ACPI_H |
| #define _XEN_ACPI_H |
| |
| #include <linux/types.h> |
| |
| #ifdef CONFIG_XEN_DOM0 |
| #include <asm/xen/hypervisor.h> |
| #include <xen/xen.h> |
| #include <linux/acpi.h> |
| #include <acpi/acpiosxf.h> |
| |
| acpi_status xen_acpi_notify_hypervisor_state(u8 sleep_state, |
| u32 pm1a_cnt, u32 pm1b_cnd); |
| |
| static inline int xen_acpi_suspend_lowlevel(void) |
| { |
| /* |
| * Xen will save and restore CPU context, so |
| * we can skip that and just go straight to |
| * the suspend. |
| */ |
| acpi_enter_sleep_state(ACPI_STATE_S3); |
| return 0; |
| } |
| |
| |
| static inline void xen_acpi_sleep_register(void) |
| { |
| if (xen_initial_domain()){ |
| acpi_os_prepare_sleep_register( |
| &xen_acpi_notify_hypervisor_state); |
| |
| acpi_suspend_lowlevel = xen_acpi_suspend_lowlevel; |
| } |
| } |
| #else |
| static inline void xen_acpi_sleep_register(void) |
| { |
| } |
| #endif |
| |
| #endif /* _XEN_ACPI_H */ |