acpi: add aml_arg() term

Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
qemu · Feb 26, 2015 · 7193f3a · 7193f3a
1 parent b25af5a
commit 7193f3a
Show file tree

Hide file tree

Showing 2 changed files with 12 additions and 0 deletions.
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
@@ -397,6 +397,17 @@ Aml *aml_name_decl(const char *name, Aml *val)
     return var;
 }
 
+/* ACPI 1.0b: 16.2.6.1 Arg Objects Encoding */
+Aml *aml_arg(int pos)
+{
+    Aml *var;
+    uint8_t op = 0x68 /* ARG0 op */ + pos;
+
+    assert(pos <= 6);
+    var = aml_opcode(op);
+    return var;
+}
+
 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefIfElse */
 Aml *aml_if(Aml *predicate)
 {

diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
@@ -64,6 +64,7 @@ Aml *aml_name(const char *name_format, ...) GCC_FMT_ATTR(1, 2);
 Aml *aml_name_decl(const char *name, Aml *val);
 Aml *aml_return(Aml *val);
 Aml *aml_int(const uint64_t val);
+Aml *aml_arg(int pos);
 
 /* Block AML object primitives */
 Aml *aml_scope(const char *name_format, ...) GCC_FMT_ATTR(1, 2);