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111 lines
3.4 KiB
111 lines
3.4 KiB
/****************************************************************************** |
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* acpi.h |
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* acpi file for domain 0 kernel |
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* |
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* Copyright (c) 2011 Konrad Rzeszutek Wilk <[email protected]> |
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* Copyright (c) 2011 Yu Ke <[email protected]> |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License version 2 |
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* as published by the Free Software Foundation; or, when distributed |
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* separately from the Linux kernel or incorporated into other |
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* software packages, subject to the following license: |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this source file (the "Software"), to deal in the Software without |
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* restriction, including without limitation the rights to use, copy, modify, |
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, |
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* and to permit persons to whom the Software is furnished to do so, subject to |
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* the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
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* IN THE SOFTWARE. |
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*/ |
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#ifndef _XEN_ACPI_H |
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#define _XEN_ACPI_H |
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#include <linux/types.h> |
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#ifdef CONFIG_XEN_DOM0 |
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#include <asm/xen/hypervisor.h> |
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#include <xen/xen.h> |
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#include <linux/acpi.h> |
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#define ACPI_MEMORY_DEVICE_CLASS "memory" |
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#define ACPI_MEMORY_DEVICE_HID "PNP0C80" |
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#define ACPI_MEMORY_DEVICE_NAME "Hotplug Mem Device" |
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int xen_stub_memory_device_init(void); |
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void xen_stub_memory_device_exit(void); |
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#define ACPI_PROCESSOR_CLASS "processor" |
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#define ACPI_PROCESSOR_DEVICE_HID "ACPI0007" |
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#define ACPI_PROCESSOR_DEVICE_NAME "Processor" |
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int xen_stub_processor_init(void); |
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void xen_stub_processor_exit(void); |
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void xen_pcpu_hotplug_sync(void); |
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int xen_pcpu_id(uint32_t acpi_id); |
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static inline int xen_acpi_get_pxm(acpi_handle h) |
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{ |
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unsigned long long pxm; |
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acpi_status status; |
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acpi_handle handle; |
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acpi_handle phandle = h; |
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do { |
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handle = phandle; |
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status = acpi_evaluate_integer(handle, "_PXM", NULL, &pxm); |
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if (ACPI_SUCCESS(status)) |
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return pxm; |
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status = acpi_get_parent(handle, &phandle); |
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} while (ACPI_SUCCESS(status)); |
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return -ENXIO; |
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} |
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int xen_acpi_notify_hypervisor_sleep(u8 sleep_state, |
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u32 pm1a_cnt, u32 pm1b_cnd); |
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int xen_acpi_notify_hypervisor_extended_sleep(u8 sleep_state, |
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u32 val_a, u32 val_b); |
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static inline int xen_acpi_suspend_lowlevel(void) |
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{ |
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/* |
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* Xen will save and restore CPU context, so |
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* we can skip that and just go straight to |
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* the suspend. |
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*/ |
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acpi_enter_sleep_state(ACPI_STATE_S3); |
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return 0; |
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} |
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static inline void xen_acpi_sleep_register(void) |
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{ |
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if (xen_initial_domain()) { |
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acpi_os_set_prepare_sleep( |
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&xen_acpi_notify_hypervisor_sleep); |
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acpi_os_set_prepare_extended_sleep( |
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&xen_acpi_notify_hypervisor_extended_sleep); |
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acpi_suspend_lowlevel = xen_acpi_suspend_lowlevel; |
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} |
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} |
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#else |
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static inline void xen_acpi_sleep_register(void) |
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{ |
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} |
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#endif |
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#endif /* _XEN_ACPI_H */
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