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	The dom0_op hypercall has been renamed to platform_op since Xen 3.2, which is ancient, and modern upstream Linux kernels cannot run as dom0 and it anymore anyway. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
		
			
				
	
	
		
			77 lines
		
	
	
	
		
			2.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			77 lines
		
	
	
	
		
			2.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/******************************************************************************
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 * acpi.c
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 * acpi file for domain 0 kernel
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 *
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 * Copyright (c) 2011 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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 * Copyright (c) 2011 Yu Ke ke.yu@intel.com
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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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#include <xen/acpi.h>
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#include <xen/interface/platform.h>
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#include <asm/xen/hypercall.h>
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#include <asm/xen/hypervisor.h>
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static int xen_acpi_notify_hypervisor_state(u8 sleep_state,
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					    u32 val_a, u32 val_b,
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					    bool extended)
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{
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	unsigned int bits = extended ? 8 : 16;
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	struct xen_platform_op op = {
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		.cmd = XENPF_enter_acpi_sleep,
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		.interface_version = XENPF_INTERFACE_VERSION,
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		.u.enter_acpi_sleep = {
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			.val_a = (u16)val_a,
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			.val_b = (u16)val_b,
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			.sleep_state = sleep_state,
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			.flags = extended ? XENPF_ACPI_SLEEP_EXTENDED : 0,
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		},
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	};
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	if (WARN((val_a & (~0 << bits)) || (val_b & (~0 << bits)),
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		 "Using more than %u bits of sleep control values %#x/%#x!"
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		 "Email xen-devel@lists.xen.org - Thank you.\n", \
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		 bits, val_a, val_b))
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		return -1;
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	HYPERVISOR_platform_op(&op);
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	return 1;
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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_cnt)
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{
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	return xen_acpi_notify_hypervisor_state(sleep_state, pm1a_cnt,
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						pm1b_cnt, false);
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}
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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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{
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	return xen_acpi_notify_hypervisor_state(sleep_state, val_a,
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						val_b, true);
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}
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