[Qemu-devel] [RFC 35/47] acpi: add acpi_reserved_field() term

[Igor Mammedov <imammedo@redhat.com>]

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/acpi/acpi_gen_utils.c         | 10 ++++++++++
 include/hw/acpi/acpi_gen_utils.h |  6 ++++++
 2 files changed, 16 insertions(+)

diff --git a/hw/acpi/acpi_gen_utils.c b/hw/acpi/acpi_gen_utils.c
index 68d1855..a77d18c 100644
--- a/hw/acpi/acpi_gen_utils.c
+++ b/hw/acpi/acpi_gen_utils.c
@@ -565,6 +565,16 @@ AcpiAml acpi_named_field(const char *name, unsigned length)
     return var;
 }
 
+/* ACPI 5.0: 20.2.5.2 Named Objects Encoding: ReservedField */
+AcpiAml acpi_reserved_field(unsigned length)
+{
+    AcpiAml var = aml_allocate_internal(0, NON_BLOCK);
+    /* ReservedField  := 0x00 PkgLength */
+    build_append_byte(var.buf, 0x00);
+    build_append_pkg_length(var.buf, length, false);
+    return var;
+}
+
 /* ACPI 5.0: 20.2.5.2 Named Objects Encoding: DefField */
 AcpiAml acpi_field(const char *name, acpiFieldFlags flags)
 {
diff --git a/include/hw/acpi/acpi_gen_utils.h b/include/hw/acpi/acpi_gen_utils.h
index 02d5aa8..048ed26 100644
--- a/include/hw/acpi/acpi_gen_utils.h
+++ b/include/hw/acpi/acpi_gen_utils.h
@@ -25,7 +25,12 @@ typedef enum {
 } acpiIODecode;
 
 typedef enum {
+    acpi_any_acc = 0,
     acpi_byte_acc = 1,
+    acpi_word_acc = 2,
+    acpi_dword_acc = 3,
+    acpi_qword_acc = 4,
+    acpi_buffer_acc = 5,
 } acpiFieldFlags;
 
 typedef enum {
@@ -58,6 +63,7 @@ AcpiAml acpi_io(acpiIODecode dec, uint16_t min_base, uint16_t max_base,
 AcpiAml acpi_operation_region(const char *name, acpiRegionSpace rs,
                               uint32_t offset, uint32_t len);
 AcpiAml acpi_named_field(const char *name, unsigned length);
+AcpiAml acpi_reserved_field(unsigned length);
 AcpiAml GCC_FMT_ATTR(1, 2) acpi_string(const char *name_format, ...);
 AcpiAml acpi_local0(void);
 AcpiAml acpi_equal(AcpiAml arg1, AcpiAml arg2);
-- 
1.8.3.1