[Qemu-devel] [PULL 52/57] acpi: add aml_shiftleft() term

["Michael S. Tsirkin" <mst@redhat.com>]

From: Marcel Apfelbaum <marcel@redhat.com>

Add encoding for ACPI DefShiftLeft Opcode.

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
---
 include/hw/acpi/aml-build.h |  1 +
 hw/acpi/aml-build.c         | 10 ++++++++++
 2 files changed, 11 insertions(+)

diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index d0de08f..f2100cb 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -202,6 +202,7 @@ Aml *aml_arg(int pos);
 Aml *aml_store(Aml *val, Aml *target);
 Aml *aml_and(Aml *arg1, Aml *arg2);
 Aml *aml_or(Aml *arg1, Aml *arg2);
+Aml *aml_shiftleft(Aml *arg1, Aml *count);
 Aml *aml_lless(Aml *arg1, Aml *arg2);
 Aml *aml_add(Aml *arg1, Aml *arg2);
 Aml *aml_index(Aml *arg1, Aml *idx);
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index ea70f43..5c140e0 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -455,6 +455,16 @@ Aml *aml_or(Aml *arg1, Aml *arg2)
     return var;
 }
 
+/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefShiftLeft */
+Aml *aml_shiftleft(Aml *arg1, Aml *count)
+{
+    Aml *var = aml_opcode(0x79 /* ShiftLeftOp */);
+    aml_append(var, arg1);
+    aml_append(var, count);
+    build_append_byte(var->buf, 0x00); /* NullNameOp */
+    return var;
+}
+
 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLLess */
 Aml *aml_lless(Aml *arg1, Aml *arg2)
 {
-- 
MST