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[Qemu-devel] [PULL 52/55] acpi: add aml_to_buffer()


From: Michael S. Tsirkin
Subject: [Qemu-devel] [PULL 52/55] acpi: add aml_to_buffer()
Date: Tue, 22 Dec 2015 18:55:05 +0200

From: Igor Mammedov <address@hidden>

Signed-off-by: Igor Mammedov <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
Reviewed-by: Marcel Apfelbaum <address@hidden>
---
 include/hw/acpi/aml-build.h |  1 +
 hw/acpi/aml-build.c         | 13 +++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 7fafda8..d906105 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -231,6 +231,7 @@ Aml *aml_int(const uint64_t val);
 Aml *aml_arg(int pos);
 Aml *aml_to_integer(Aml *arg);
 Aml *aml_to_hexstring(Aml *src, Aml *dst);
+Aml *aml_to_buffer(Aml *src, Aml *dst);
 Aml *aml_store(Aml *val, Aml *target);
 Aml *aml_and(Aml *arg1, Aml *arg2);
 Aml *aml_or(Aml *arg1, Aml *arg2);
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 40ea128..9222e8f 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -449,6 +449,19 @@ Aml *aml_to_hexstring(Aml *src, Aml *dst)
     return var;
 }
 
+/* ACPI 2.0a: 17.2.4.4 Type 2 Opcodes Encoding: DefToBuffer */
+Aml *aml_to_buffer(Aml *src, Aml *dst)
+{
+    Aml *var = aml_opcode(0x96 /* ToBufferOp */);
+    aml_append(var, src);
+    if (dst) {
+        aml_append(var, dst);
+    } else {
+        build_append_byte(var->buf, 0x00 /* NullNameOp */);
+    }
+    return var;
+}
+
 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefStore */
 Aml *aml_store(Aml *val, Aml *target)
 {
-- 
MST




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