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s390/css: Fix subchannel detection
We have to consider the m bit to find the real channel subsystem whendetermining the last subchannel.
If we fail to take this into account, removal of a subchannel inthe middle of a big list of devices will stop device detection after...
s390: Fix handling of iscs.
There are two ways to express an interruption subclass:- As a bitmask, as used in cr6.- As a number, as used in the I/O interruption word.
Unfortunately, we have treated to I/O interruption word as if itcontained the bitmask as well, which went unnoticed so far as...
s390: Use s390_cpu_physical_memory_map for tpi.
Map the I/O interruption code before calling into css.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>Signed-off-by: Alexander Graf <agraf@suse.de>
s390: css error codes.
Changed error codes in the channel subsystem / virtio-ccw code(-EOPNOTSUPP -> -ENOSYS, -ERESTART -> -EINPROGRESS).
This should hopefully fix building on mingw32.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>Reviewed-by: Stefan Weil <sw@weilnetz.de>...
s390: Virtual channel subsystem support.
Provide a mechanism for qemu to provide fully virtual subchannels tothe guest.