[Qemu-devel] [PATCH v3 07/52] acpi: add aml_scope() term

[Igor Mammedov <imammedo@redhat.com>]

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/acpi/aml-build.c         | 20 ++++++++++++++++++++
 include/hw/acpi/aml-build.h |  1 +
 2 files changed, 21 insertions(+)

diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index cb1a1bd..31a3786 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -259,6 +259,15 @@ static Aml *aml_alloc(void)
     return var;
 }
 
+static Aml *aml_bundle(uint8_t op, AmlBlockFlags flags)
+{
+    Aml *var = aml_alloc();
+
+    var->op  = op;
+    var->block_flags = flags;
+    return var;
+}
+
 static void aml_free(gpointer data)
 {
     Aml *var = data;
@@ -373,3 +382,14 @@ Aml *aml_def_block(const char *signature, uint8_t revision,
 
     return var;
 }
+
+/* ACPI 1.0b: 16.2.5.1 Namespace Modifier Objects Encoding: DefScope */
+Aml *aml_scope(const char *name_format, ...)
+{
+    va_list ap;
+    Aml *var = aml_bundle(0x10 /* ScopeOp */, AML_PACKAGE);
+    va_start(ap, name_format);
+    build_append_namestringv(var->buf, name_format, ap);
+    va_end(ap);
+    return var;
+}
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 2610336..35f1099 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -74,6 +74,7 @@ Aml *aml_def_block(const char *signature, uint8_t revision,
                    const char *oem_id, const char *oem_table_id,
                    uint32_t oem_revision, uint32_t creator_id,
                    uint32_t creator_revision);
+Aml *aml_scope(const char *name_format, ...) GCC_FMT_ATTR(1, 2);
 
 /* other helpers */
 GArray *build_alloc_array(void);
-- 
1.8.3.1