Signed-off-by: Igor Mammedov <imamm...@redhat.com>
---
hw/acpi/acpi_gen_utils.c | 26 ++++++++++++++++++++++++++
include/hw/acpi/acpi_gen_utils.h | 1 +
2 files changed, 27 insertions(+)
diff --git a/hw/acpi/acpi_gen_utils.c b/hw/acpi/acpi_gen_utils.c
index 6bd7974..920d8c2 100644
--- a/hw/acpi/acpi_gen_utils.c
+++ b/hw/acpi/acpi_gen_utils.c
@@ -561,6 +561,32 @@ AcpiAml acpi_field(const char *name, acpiFieldFlags flags)
return var;
}
+/* ACPI 5.0: 20.2.3 Data Objects Encoding: String */
+AcpiAml GCC_FMT_ATTR(1, 2) acpi_string(const char *name_format, ...)
+{
+ AcpiAml var = aml_allocate_internal(0, NON_BLOCK);
+ 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_new(typeof(*s), len);
+
+ len = vsnprintf(s, len, name_format, ap);
+ va_end(ap);
+
+ build_append_byte(var.buf, 0x0D); /* StringPrefix */
+ g_array_append_vals(var.buf, s, len);
+ build_append_byte(var.buf, 0x0); /* NullChar */
+ g_free(s);
+
+ return var;
+}
+
/* ACPI 5.0: 20.2.6.2 Local Objects Encoding: Local0Op */
AcpiAml acpi_local0(void)
{
diff --git a/include/hw/acpi/acpi_gen_utils.h b/include/hw/acpi/acpi_gen_utils.h
index 8261ee5..c823fb8 100644
--- a/include/hw/acpi/acpi_gen_utils.h
+++ b/include/hw/acpi/acpi_gen_utils.h
@@ -58,6 +58,7 @@ AcpiAml acpi_io(acpiIODecode dec, uint16_t min_base, uint16_t
max_base,
AcpiAml acpi_operation_region(const char *name, acpiRegionSpace rs,
uint32_t offset, uint32_t len);
AcpiAml acpi_named_field(const char *name, unsigned length);
+AcpiAml GCC_FMT_ATTR(1, 2) acpi_string(const char *name_format, ...);
AcpiAml acpi_local0(void);
/* Block ASL object primitives */
--
1.8.3.1
