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- /******************************************************************************
- * acpi.h
- * acpi file for domain 0 kernel
- *
- * Copyright (c) 2011 Konrad Rzeszutek Wilk <[email protected]>
- * Copyright (c) 2011 Yu Ke <[email protected]>
- *
- * 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>
- int xen_acpi_notify_hypervisor_sleep(u8 sleep_state,
- u32 pm1a_cnt, u32 pm1b_cnd);
- int xen_acpi_notify_hypervisor_extended_sleep(u8 sleep_state,
- u32 val_a, u32 val_b);
- 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_set_prepare_sleep(
- &xen_acpi_notify_hypervisor_sleep);
- acpi_os_set_prepare_extended_sleep(
- &xen_acpi_notify_hypervisor_extended_sleep);
- acpi_suspend_lowlevel = xen_acpi_suspend_lowlevel;
- }
- }
- #else
- static inline void xen_acpi_sleep_register(void)
- {
- }
- #endif
- #endif /* _XEN_ACPI_H */
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