"-machine pc" will not work all architectures. Lets fall back to the
default machine by not specifying it.

In addition we also need to specify -no-shutdown on s390 as qemu will
exit otherwise.

Cc: qemu-stable@nongnu.org
Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
(cherry picked from commit 2c26e648)
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>

This test is broken without previous commit fixing dead-lock in mirror.
Signed-off-by: NVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: NMax Reitz <mreitz@redhat.com>
Acked-by: NVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
(cherry picked from commit db5e8210)
*drop context deps from test groups not in 3.0
*modify expected QMP output to match encoding for 3.0
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>