acpi: add aml_concatenate()

It will be used by nvdimm acpi

Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 45b7f0abed5d442fe32e35d65e587c58b210da65..bb0cf523cef4c1f30ebf3d9d009d65804792d6ec 100644 (file)
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -1437,6 +1437,13 @@ Aml *aml_alias(const char *source_object, const char *alias_object)
     return var;
 }
 
+/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefConcat */
+Aml *aml_concatenate(Aml *source1, Aml *source2, Aml *target)
+{
+    return build_opcode_2arg_dst(0x73 /* ConcatOp */, source1, source2,
+                                 target);
+}
+
 void
 build_header(GArray *linker, GArray *table_data,
              AcpiTableHeader *h, const char *sig, int len, uint8_t rev,

diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 7d26911d179a1605d7d4d3c0fb51af73f0791b89..258cbf32d528b9bae97737ef5d1411073f940ab2 100644 (file)
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -353,6 +353,7 @@ Aml *aml_touuid(const char *uuid);
 Aml *aml_unicode(const char *str);
 Aml *aml_derefof(Aml *arg);
 Aml *aml_sizeof(Aml *arg);
+Aml *aml_concatenate(Aml *source1, Aml *source2, Aml *target);
 
 void
 build_header(GArray *linker, GArray *table_data,