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s390-ccw: Fix alignment for CCW1 

The commit 198c0d1f9d 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>
(cherry picked from commit 3a1e4561ad)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
stable-2.10
Farhan Ali 2017-08-25 09:24:46 -04:00 committed by Michael Roth
parent 53d421dd9c
commit e1b4750f06
1 changed files with 1 additions and 1 deletions
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2
pc-bios/s390-ccw/cio.h
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@ -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