s390/protvirt: add ultravisor initialization

Before being able to host protected virtual machines, donate some of
the memory to the ultravisor. Besides that the ultravisor might impose
addressing limitations for memory used to back protected VM storage. Treat
that limit as protected virtualization host's virtual memory limit.

Signed-off-by: Vasily Gorbik <[email protected]>
Reviewed-by: Christian Borntraeger <[email protected]>
Reviewed-by: Cornelia Huck <[email protected]>
Reviewed-by: Thomas Huth <[email protected]>
Reviewed-by: David Hildenbrand <[email protected]>
[[email protected]: patch merging, splitting, fixing]
Signed-off-by: Christian Borntraeger <[email protected]>

0 files changed, 0 insertions, 0 deletions