Signed-off-by: Igor Mammedov <imamm...@redhat.com> --- hw/acpi/aml-build.c | 25 +++++++++++++++++++++++++ include/hw/acpi/aml-build.h | 1 + 2 files changed, 26 insertions(+)
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c index cb58e19..3929de9 100644 --- a/hw/acpi/aml-build.c +++ b/hw/acpi/aml-build.c @@ -648,6 +648,31 @@ 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) { diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h index 6e25315..fee4eef 100644 --- a/include/hw/acpi/aml-build.h +++ b/include/hw/acpi/aml-build.h @@ -102,6 +102,7 @@ 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_def_block(const char *signature, uint8_t revision, -- 1.8.3.1