From: Igor Mammedov <[email protected]>
Signed-off-by: Igor Mammedov <[email protected]>
Reviewed-by: Michael S. Tsirkin <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
---
include/hw/acpi/aml-build.h | 1 +
hw/acpi/aml-build.c | 25 +++++++++++++++++++++++++
2 files changed, 26 insertions(+)
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index de081d6..b1eab3c 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -92,6 +92,7 @@ Aml *aml_operation_region(const char *name, AmlRegionSpace rs,
uint32_t offset, uint32_t len);
Aml *aml_named_field(const char *name, unsigned length);
Aml *aml_local(int num);
+Aml *aml_string(const char *name_format, ...) GCC_FMT_ATTR(1, 2);
/* Block AML object primitives */
Aml *aml_scope(const char *name_format, ...) GCC_FMT_ATTR(1, 2);
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index fabd0ad..57a65dd 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -597,6 +597,31 @@ Aml *aml_field(const char *name, AmlFieldFlags flags)
return var;
}
+/* ACPI 1.0b: 16.2.3 Data Objects Encoding: String */
+Aml *aml_string(const char *name_format, ...)
+{
+ Aml *var = aml_opcode(0x0D /* StringPrefix */);
+ va_list ap, va_len;
+ char *s;
+ int len;
+
+ va_start(ap, name_format);
+ va_copy(va_len, ap);
+ len = vsnprintf(NULL, 0, name_format, va_len);
+ va_end(va_len);
+ len += 1;
+ s = g_new0(typeof(*s), len);
+
+ len = vsnprintf(s, len, name_format, ap);
+ va_end(ap);
+
+ g_array_append_vals(var->buf, s, len);
+ build_append_byte(var->buf, 0x0); /* NullChar */
+ g_free(s);
+
+ return var;
+}
+
/* ACPI 1.0b: 16.2.6.2 Local Objects Encoding */
Aml *aml_local(int num)
{
--
MST
