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authorXiao Guangrong <guangrong.xiao@linux.intel.com>2015-12-17 13:37:13 +0000
committerPeter Maydell <peter.maydell@linaro.org>2015-12-17 13:37:13 +0000
commit4dbfc88149b1b7359c9e0c6e6d4bbca960acf2e8 (patch)
tree3da4d3502316ce3caa05eb4084915fa29d1193dc /hw/acpi/aml-build.c
parent7999a5c8f63344d91c0822a17dbf30e2489a1128 (diff)
acpi: support serialized method
Add serialized method support so that explicit Mutex can be avoided Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org> Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> Message-id: 1449804086-3464-2-git-send-email-zhaoshenglong@huawei.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/acpi/aml-build.c')
-rw-r--r--hw/acpi/aml-build.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index a00a0abe83..411c0e5374 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -696,11 +696,24 @@ Aml *aml_while(Aml *predicate)
}
/* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefMethod */
-Aml *aml_method(const char *name, int arg_count)
+Aml *aml_method(const char *name, int arg_count, AmlSerializeFlag sflag)
{
Aml *var = aml_bundle(0x14 /* MethodOp */, AML_PACKAGE);
+ int methodflags;
+
+ /*
+ * MethodFlags:
+ * bit 0-2: ArgCount (0-7)
+ * bit 3: SerializeFlag
+ * 0: NotSerialized
+ * 1: Serialized
+ * bit 4-7: reserved (must be 0)
+ */
+ assert(arg_count < 8);
+ methodflags = arg_count | (sflag << 3);
+
build_append_namestring(var->buf, "%s", name);
- build_append_byte(var->buf, arg_count); /* MethodFlags: ArgCount */
+ build_append_byte(var->buf, methodflags); /* MethodFlags: ArgCount */
return var;
}