s390x/event-facility: fix location of receive mask
For read event mask, we assumed that the layout of the sccb was
|sccb header|event buffer header|receive mask|...|
The correct layout, however, is
|sccb header|receive mask|...|
as in-buffer and
|sccb header|event buffer header|...|
as out-buffer.
Fix this: This makes selective read work.
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
diff --git a/include/hw/s390x/event-facility.h b/include/hw/s390x/event-facility.h
index 6a062b6..871f3e7 100644
--- a/include/hw/s390x/event-facility.h
+++ b/include/hw/s390x/event-facility.h
@@ -146,8 +146,10 @@
typedef struct ReadEventData {
SCCBHeader h;
- EventBufferHeader ebh;
- uint32_t mask;
+ union {
+ uint32_t mask;
+ EventBufferHeader ebh;
+ };
} QEMU_PACKED ReadEventData;
typedef struct SCLPEvent {
