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ACPI hibernate: Introduce new kernel parameter acpi_sleep=s4_nonvs
On some machines it may be necessary to disable the saving/restoring of the ACPI NVS memory region during hibernation/resume. For this purpose, introduce new ACPI kernel command line option acpi_sleep=s4_nonvs. Based on a patch by Zhang Rui. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Nigel Cunningham <nigel@tuxonice.net> Acked-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Len Brown <len.brown@intel.com>
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4 changed files with 23 additions and 3 deletions
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@ -270,6 +270,7 @@ int acpi_check_mem_region(resource_size_t start, resource_size_t n,
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#ifdef CONFIG_PM_SLEEP
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void __init acpi_no_s4_hw_signature(void);
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void __init acpi_old_suspend_ordering(void);
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void __init acpi_s4_no_nvs(void);
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#endif /* CONFIG_PM_SLEEP */
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#else /* CONFIG_ACPI */
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