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s390/protvirt: Add sysfs firmware interface for Ultravisor information
authorJanosch Frank <frankja@linux.ibm.com>
Thu, 13 Feb 2020 09:15:25 +0000 (04:15 -0500)
committerChristian Borntraeger <borntraeger@de.ibm.com>
Thu, 27 Feb 2020 18:44:40 +0000 (19:44 +0100)
commita0f60f8431999bf57cf53c3b27c47ef156b4fa17
tree9250f64fa9b77eeb6ced3aca98d14e7babd4918e
parent084ea4d611a3d00ee3930400b262240e10895900
s390/protvirt: Add sysfs firmware interface for Ultravisor information

That information, e.g. the maximum number of guests or installed
Ultravisor facilities, is interesting for QEMU, Libvirt and
administrators.

Let's provide an easily parsable API to get that information.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
arch/s390/kernel/uv.c