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>
---
hw/acpi/aml-build.c | 40 ++++++++++++++++++++++++++++++++++++++++
include/hw/acpi/aml-build.h | 1 +
2 files changed, 41 insertions(+)
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index b99bb13..316d5a5 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -25,6 +25,7 @@
#include <stdbool.h>
#include <string.h>
#include "hw/acpi/aml-build.h"
+#include "qemu-common.h"
#include "qemu/bswap.h"
#include "qemu/bitops.h"
#include "hw/acpi/bios-linker-loader.h"
@@ -948,6 +949,45 @@ Aml *aml_qword_memory(AmlDecode dec, AmlMinFixed min_fixed,
addr_trans, len, flags);
}
+/*
+ * ACPI 3.0: 17.5.124 ToUUID (Convert String to UUID Macro)
+ * e.g. UUID: E5C937D0-3553-4d7a-9117-EA4D19C3434D
+ * call aml_touuid("E5C937D0-3553-4d7a-9117-EA4D19C3434D");
+ */
+Aml *aml_touuid(const char *uuid)
+{
+ int i;
+ long int val;
+ char *end;
+ const char *start = uuid;
+ Aml *UUID = aml_buffer();
+
+ val = strtol(start, &end, 16);
+ g_assert((end - start) == 8);
+ build_append_int_noprefix(UUID->buf, val, 4);
+ start = end + 1;
+ val = strtol(start, &end, 16);
+ g_assert((end - start) == 4);
+ build_append_int_noprefix(UUID->buf, val, 2);
+ start = end + 1;
+ val = strtol(start, &end, 16);
+ g_assert((end - start) == 4);
+ build_append_int_noprefix(UUID->buf, val, 2);
+ start = end + 1;
+ val = strtol(start, &end, 16);
+ g_assert((end - start) == 4);
+ build_append_int_noprefix(UUID->buf, (val >> 8) & 0xFF, 1);
+ build_append_int_noprefix(UUID->buf, val & 0xFF, 1);
+ start = end + 1;
+ val = strtol(start, &end, 16);
+ g_assert((end - start) == 12);
+ for (i = 40; i >= 0; i -= 8) {
+ build_append_int_noprefix(UUID->buf, (val >> i) & 0xFF, 1);
+ }
+
+ return UUID;
+}
+
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 d1b9fe7..b41fd0c 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -259,6 +259,7 @@ Aml *aml_buffer(void);
Aml *aml_resource_template(void);
Aml *aml_field(const char *name, AmlFieldFlags flags);
Aml *aml_varpackage(uint32_t num_elements);
+Aml *aml_touuid(const char *uuid);
void
build_header(GArray *linker, GArray *table_data,
--
2.0.4
