From: Shannon Zhao <shannon.z...@linaro.org>
Add ToUUID macro, this is useful for generating PCIe ACPI table.
Signed-off-by: Shannon Zhao <zhaoshengl...@huawei.com>
Signed-off-by: Shannon Zhao <shannon.z...@linaro.org>
Reviewed-by: Igor Mammedov <imamm...@redhat.com>
---
hw/acpi/aml-build.c | 112 ++++++++++++++++++++++++++++++++++++++++++++
include/hw/acpi/aml-build.h | 1 +
2 files changed, 113 insertions(+)
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 7fcc44e..bdcbad2 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -28,6 +28,8 @@
#include "qemu/bswap.h"
#include "qemu/bitops.h"
#include "hw/acpi/bios-linker-loader.h"
+#include "qapi/error.h"
+#include "qemu-common.h"
static GArray *build_alloc_array(void)
{
@@ -955,6 +957,116 @@ Aml *aml_qword_memory(AmlDecode dec, AmlMinFixed
min_fixed,
addr_trans, len, flags);
}
+static void String2Byte(const char *str, uint8_t *byte_list)
+{
+ unsigned long long val;
+ char *end;
+ const char *start = str;
+ int i, j = 0;
+ Error *err = NULL;
+
+ if (strlen(str) != 36) {
+ error_setg(&err, "Length of UUID string is not 36");
+ goto error;
+ }
+
+ val = strtoull(start, &end, 16);
+ if ((end - start) != 8) {
+ error_setg(&err, "Length of first part of UUID string is not 8");
+ goto error;
+ }
+ for (i = 3; i >= 0; i--) {
+ byte_list[j] = extract32(val, (8 * i), 8);
+ j++;
+ }
+ start = end + 1;
+
+ val = strtoull(start, &end, 16);
+ if ((end - start) != 4) {
+ error_setg(&err, "Length of second part of UUID string is not 4");
+ goto error;
+ }
+ for (i = 1; i >= 0; i--) {
+ byte_list[j] = extract32(val, (8 * i), 8);
+ j++;
+ }
+ start = end + 1;
+
+ val = strtoull(start, &end, 16);
+ if ((end - start) != 4) {
+ error_setg(&err, "Length of third part of UUID string is not 4");
+ goto error;
+ }
+ for (i = 1; i >= 0; i--) {
+ byte_list[j] = extract32(val, (8 * i), 8);
+ j++;
+ }
+ start = end + 1;
+
+ val = strtoull(start, &end, 16);
+ if ((end - start) != 4) {
+ error_setg(&err, "Length of fourth part of UUID string is not 4");
+ goto error;
+ }
+ for (i = 1; i >= 0; i--) {
+ byte_list[j] = extract32(val, (8 * i), 8);
+ j++;
+ }
+ start = end + 1;
+
+ val = strtoull(start, &end, 16);
+ if ((end - start) != 12) {
+ error_setg(&err, "Length of fifth part of UUID string is not 12");
+ goto error;
+ }
+ for (i = 5; i >= 0; i--) {
+ byte_list[j] = extract64(val, (8 * i), 8);
+ j++;
+ }
+
+ return;
+
+error:
+ error_report_err(err);
+ exit(1);
+}
+
+/*
+ * ACPI 3.0: 17.5.124 ToUUID (Convert String to UUID Macro)
+ * e.g. UUID: aabbccdd-eeff-gghh-iijj-kkllmmnnoopp
+ * call aml_touuid("aabbccdd-eeff-gghh-iijj-kkllmmnnoopp");
+ */
+Aml *aml_touuid(const char *uuid)
+{
+ Aml *var = aml_bundle(0x11 /* BufferOp */, AML_BUFFER);
+ uint8_t byte_list[16];
+
+ String2Byte(uuid, byte_list);
+
+ build_append_byte(var->buf, byte_list[3]); /* dd - at offset 00 */
+ build_append_byte(var->buf, byte_list[2]); /* cc - at offset 01 */
+ build_append_byte(var->buf, byte_list[1]); /* bb - at offset 02 */
+ build_append_byte(var->buf, byte_list[0]); /* aa - at offset 03 */
+
+ build_append_byte(var->buf, byte_list[5]); /* ff - at offset 04 */
+ build_append_byte(var->buf, byte_list[4]); /* ee - at offset 05 */
+
+ build_append_byte(var->buf, byte_list[7]); /* hh - at offset 06 */
+ build_append_byte(var->buf, byte_list[6]); /* gg - at offset 07 */
+
+ build_append_byte(var->buf, byte_list[8]); /* ii - at offset 08 */
+ build_append_byte(var->buf, byte_list[9]); /* jj - at offset 09 */
+
+ build_append_byte(var->buf, byte_list[10]); /* kk - at offset 10 */
+ build_append_byte(var->buf, byte_list[11]); /* ll - at offset 11 */
+ build_append_byte(var->buf, byte_list[12]); /* mm - at offset 12 */
+ build_append_byte(var->buf, byte_list[13]); /* nn - at offset 13 */
+ build_append_byte(var->buf, byte_list[14]); /* oo - at offset 14 */
+ build_append_byte(var->buf, byte_list[15]); /* pp - at offset 15 */
+
+ 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 fac70ea..a873b46 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -257,6 +257,7 @@ Aml *aml_buffer(int buffer_size, uint8_t *byte_list);
Aml *aml_resource_template(void);
Aml *aml_field(const char *name, AmlAccessType type, AmlUpdateRule rule);
Aml *aml_varpackage(uint32_t num_elements);
+Aml *aml_touuid(const char *uuid);
void
build_header(GArray *linker, GArray *table_data,
--
2.0.4
