[Qemu-devel] [RFC 05/47] acpi: add acpi_if() term

[Igor Mammedov]

Signed-off-by: Igor Mammedov <address@hidden>
---
 hw/acpi/acpi_gen_utils.c         | 8 ++++++++
 include/hw/acpi/acpi_gen_utils.h | 1 +
 2 files changed, 9 insertions(+)

diff --git a/hw/acpi/acpi_gen_utils.c b/hw/acpi/acpi_gen_utils.c
index a481adb..7bb41ce 100644
--- a/hw/acpi/acpi_gen_utils.c
+++ b/hw/acpi/acpi_gen_utils.c
@@ -289,6 +289,14 @@ static AcpiAml aml_allocate_internal(uint8_t op, 
AcpiBlockFlags flags)
     return var;
 }
 
+/* ACPI 5.0: 20.2.5.3 Type 1 Opcodes Encoding: DefIfElse */
+AcpiAml acpi_if(AcpiAml predicate)
+{
+    AcpiAml var = aml_allocate_internal(0xA0 /* IfOp */, PACKAGE);
+    aml_append(&var, predicate);
+    return var;
+}
+
 /* ACPI 5.0: 20.2.5.2 Named Objects Encoding: DefMethod */
 AcpiAml acpi_method(const char *name, int arg_count)
 {
diff --git a/include/hw/acpi/acpi_gen_utils.h b/include/hw/acpi/acpi_gen_utils.h
index 19ebc2d..177f9ed 100644
--- a/include/hw/acpi/acpi_gen_utils.h
+++ b/include/hw/acpi/acpi_gen_utils.h
@@ -22,6 +22,7 @@ typedef struct AcpiAml {
 void aml_append(AcpiAml *parent_ctx, AcpiAml child);
 
 /* Block ASL object primitives */
+AcpiAml acpi_if(AcpiAml predicate);
 AcpiAml acpi_method(const char *name, int arg_count);
 AcpiAml GCC_FMT_ATTR(1, 2) acpi_scope(const char *name_format, ...);
 AcpiAml GCC_FMT_ATTR(1, 2) acpi_device(const char *name_format, ...);
-- 
1.8.3.1