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authorFarhan Ali <alifm@linux.vnet.ibm.com>2017-08-25 09:24:46 -0400
committerCornelia Huck <cohuck@redhat.com>2017-08-30 18:23:26 +0200
commit3a1e4561ad63b303b092387ae006bd41468ece63 (patch)
tree92ac665ae0284db4ecdba416ddf2aacddb09835a /pc-bios/s390-ccw
parent3ea6d20e0baacb4a1211ed0ea57db14e2fc927ce (diff)
s390-ccw: Fix alignment for CCW1
The commit 198c0d1f9df8c4 s390x/css: check ccw address validity exposes an alignment issue in ccw bios. According to PoP the CCW must be doubleword aligned. Let's fix this in the bios. Cc: qemu-stable@nongnu.org Signed-off-by: Farhan Ali <alifm@linux.vnet.ibm.com> Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com> Reviewed-by: Eric Farman <farman@linux.vnet.ibm.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Message-Id: <3ed8b810b6592daee6a775037ce21f850e40647d.1503667215.git.alifm@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'pc-bios/s390-ccw')
-rw-r--r--pc-bios/s390-ccw/cio.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/pc-bios/s390-ccw/cio.h b/pc-bios/s390-ccw/cio.h
index f5b4549ea3..55eaeee4b6 100644
--- a/pc-bios/s390-ccw/cio.h
+++ b/pc-bios/s390-ccw/cio.h
@@ -133,7 +133,7 @@ struct ccw1 {
__u8 flags;
__u16 count;
__u32 cda;
-} __attribute__ ((packed));
+} __attribute__ ((packed, aligned(8)));
#define CCW_FLAG_DC 0x80
#define CCW_FLAG_CC 0x40