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For TIC CCW, bit positions 8-32 of the format-1 CCW must contain zeros; otherwise, a program-check condition is generated. For format-0 TIC CCWs, bits 32-63 are ignored. To convert TIC from format-0 CCW to format-1 CCW correctly, let's clear bits 8-32 to guarantee compatibility. Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com> Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>