ACPICA: Add support to externally execute _OSI method
The current implemenation of _OSI within ACPICA only allows other
control methods to execute _OSI. This change allows the host
OS to execute _OSI via the AcpiEvaluateObject interface. _OSI
is a special method -- it does not exist in the AML code, it is
implemented within ACPICA.
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>
diff --git a/drivers/acpi/parser/psxface.c b/drivers/acpi/parser/psxface.c
index 270469a..4985ce5 100644
--- a/drivers/acpi/parser/psxface.c
+++ b/drivers/acpi/parser/psxface.c
@@ -45,6 +45,7 @@
#include <acpi/acparser.h>
#include <acpi/acdispat.h>
#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
#define _COMPONENT ACPI_PARSER
ACPI_MODULE_NAME("psxface")
@@ -278,6 +279,22 @@
goto cleanup;
}
+ /* Invoke an internal method if necessary */
+
+ if (info->obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) {
+ status = info->obj_desc->method.implementation(walk_state);
+ info->return_object = walk_state->return_desc;
+
+ /* Cleanup states */
+
+ acpi_ds_scope_stack_clear(walk_state);
+ acpi_ps_cleanup_scope(&walk_state->parser_state);
+ acpi_ds_terminate_control_method(walk_state->method_desc,
+ walk_state);
+ acpi_ds_delete_walk_state(walk_state);
+ goto cleanup;
+ }
+
/* Parse the AML */
status = acpi_ps_parse_aml(walk_state);