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authorIgor Mammedov <imammedo@redhat.com>2015-12-10 00:41:14 +0100
committerMichael S. Tsirkin <mst@redhat.com>2015-12-22 18:39:21 +0200
commit25c1432ebeec3b0dee6d0fffa201e0dc8f6502f0 (patch)
tree332dea78e17b18f6bb5c1e6f017f0f414592e551
parent6d5ea945ceeda364c18a28f7ef7bcbe3c7c94f67 (diff)
acpi: add aml_to_buffer()
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> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
-rw-r--r--hw/acpi/aml-build.c13
-rw-r--r--include/hw/acpi/aml-build.h1
2 files changed, 14 insertions, 0 deletions
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 40ea1284b7..9222e8fd90 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)
{
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 7fafda8c24..d906105a82 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);