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[v2,2/8] qemu/uuid: Add UUID static initializer

Message ID 20221221-ira-cxl-events-2022-11-17-v2-2-2ce2ecc06219@intel.com
State New, archived
Headers show
Series QEMU CXL Provide mock CXL events and irq support | expand

Commit Message

Ira Weiny Dec. 22, 2022, 4:24 a.m. UTC 
UUID's are defined as network byte order fields.  No static initializer
was available for UUID's in their standard big endian format.

Define a big endian initializer for UUIDs.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
---
 include/qemu/uuid.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)
diff mbox series

Patch

diff --git a/include/qemu/uuid.h b/include/qemu/uuid.h
index 9925febfa54d..dc40ee1fc998 100644
--- a/include/qemu/uuid.h
+++ b/include/qemu/uuid.h
@@ -61,6 +61,18 @@  typedef struct {
     (clock_seq_hi_and_reserved), (clock_seq_low), (node0), (node1), (node2),\
     (node3), (node4), (node5) }
 
+/* Normal (network byte order) UUID */
+#define UUID(time_low, time_mid, time_hi_and_version,                    \
+  clock_seq_hi_and_reserved, clock_seq_low, node0, node1, node2,         \
+  node3, node4, node5)                                                   \
+  { ((time_low) >> 24) & 0xff, ((time_low) >> 16) & 0xff,                \
+    ((time_low) >> 8) & 0xff, (time_low) & 0xff,                         \
+    ((time_mid) >> 8) & 0xff, (time_mid) & 0xff,                         \
+    ((time_hi_and_version) >> 8) & 0xff, (time_hi_and_version) & 0xff,   \
+    (clock_seq_hi_and_reserved), (clock_seq_low),                        \
+    (node0), (node1), (node2), (node3), (node4), (node5)                 \
+  }
+
 #define UUID_FMT "%02hhx%02hhx%02hhx%02hhx-" \
                  "%02hhx%02hhx-%02hhx%02hhx-" \
                  "%02hhx%02hhx-" \