ivhsmem: read do not accept more than sizeof(long)
ivshmem_read() only reads sizeof(long) from the input buffer. Accepting
more could lead to fifo8 abort() on 32bit systems if fifo is not empty.
A following patch will change the protocol to 64-bit little-endian
instead.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c
index cc76989..fb53b3f 100644
--- a/hw/misc/ivshmem.c
+++ b/hw/misc/ivshmem.c
@@ -272,7 +272,7 @@
static int ivshmem_can_receive(void * opaque)
{
- return 8;
+ return sizeof(long);
}
static void ivshmem_event(void *opaque, int event)
