ACPICA: Windows compatibility: autoexecute root _INI method (9e64155e) · Commits · 戴 / test

Add support for execution of an _INI method at the namespace root. Although not defined in the ACPI specification, this support was added to Windows around the Vista timeframe. It is added here for Windows compatibility. Signed-off-by:

Bob Moore <robert.moore@intel.com> Signed-off-by:

Lin Ming <ming.m.lin@intel.com> Signed-off-by:

Len Brown <len.brown@intel.com>

drivers/acpi/acpica/nsinit.c

+15 −0

Original line number	Diff line number	Diff line
		@@ -170,6 +170,21 @@ acpi_status acpi_ns_initialize_devices(void)
		goto error_exit;
		}

		/*
		* Execute the "global" _INI method that may appear at the root. This
		* support is provided for Windows compatibility (Vista+) and is not
		* part of the ACPI specification.
		*/
		info.evaluate_info->prefix_node = acpi_gbl_root_node;
		info.evaluate_info->pathname = METHOD_NAME__INI;
		info.evaluate_info->parameters = NULL;
		info.evaluate_info->flags = ACPI_IGNORE_RETURN_VALUE;

		status = acpi_ns_evaluate(info.evaluate_info);
		if (ACPI_SUCCESS(status)) {
		info.num_INI++;
		}

		/* Walk namespace to execute all _INIs on present devices */

		status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,

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