[Qemu-devel] [PATCH v7 20/23] hw/acpi/aml-build: Add Unicode macro

[Shannon Zhao]

From: Shannon Zhao <address@hidden>

Signed-off-by: Shannon Zhao <address@hidden>
Signed-off-by: Shannon Zhao <address@hidden>
---
 hw/acpi/aml-build.c         | 18 ++++++++++++++++++
 include/hw/acpi/aml-build.h |  1 +
 2 files changed, 19 insertions(+)

diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 238d6a3..360023a 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -1056,6 +1056,24 @@ Aml *aml_touuid(const char *uuid)
     return var;
 }
 
+/*
+ * ACPI 2.0b: 16.2.3.6.4.3  Unicode Macro (Convert Ascii String To Unicode)
+ */
+Aml *aml_unicode(const char *str)
+{
+    Aml *var = aml_bundle(0x11 /* BufferOp */, AML_BUFFER);
+
+    while (*str != '\0') {
+        build_append_byte(var->buf, 0);
+        build_append_byte(var->buf, *str);
+        str++;
+    }
+    build_append_byte(var->buf, 0);
+    build_append_byte(var->buf, *str);
+
+    return var;
+}
+
 void
 build_header(GArray *linker, GArray *table_data,
              AcpiTableHeader *h, const char *sig, int len, uint8_t rev)
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 2fea838..564561e 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -275,6 +275,7 @@ Aml *aml_field(const char *name, AmlAccessType type, 
AmlUpdateRule rule);
 Aml *aml_create_dword_field(Aml *srcbuf, Aml *index, const char *name);
 Aml *aml_varpackage(uint32_t num_elements);
 Aml *aml_touuid(const char *uuid);
+Aml *aml_unicode(const char *str);
 
 void
 build_header(GArray *linker, GArray *table_data,
-- 
2.1.0