s390/css: indicate the availability of the AIV facility

The patch adds an indication for the presence Adapter Interruption
Virtualization facility (AIV) of the general channel subsystem
characteristics.

Signed-off-by: Michael Mueller <mimu@linux.vnet.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
[change wording]

diff --git a/arch/s390/include/asm/css_chars.h b/arch/s390/include/asm/css_chars.h
index a478eb61aaf7f34e272c50101e7ff3596b643dc3..fb56fa3283a2c35cc79930df704e397265e56383 100644 (file)
--- a/arch/s390/include/asm/css_chars.h
+++ b/arch/s390/include/asm/css_chars.h
@@ -20,7 +20,9 @@ struct css_general_char {
        u32 aif_tdd : 1; /* bit 56 */
        u32 : 1;
        u32 qebsm : 1;   /* bit 58 */
-       u32 : 8;
+       u32 : 2;
+       u32 aiv : 1;     /* bit 61 */
+       u32 : 5;
        u32 aif_osa : 1; /* bit 67 */
        u32 : 12;
        u32 eadm_rf : 1; /* bit 80 */