KVM: s390: add KVM_S390_ZPCI_OP to manage guest zPCI devices

Bugzilla: http://bugzilla.redhat.com/1871143



commit db1c875e
Author: Matthew Rosato <mjrosato@linux.ibm.com>
Date:   Mon Jun 6 16:33:24 2022 -0400

    KVM: s390: add KVM_S390_ZPCI_OP to manage guest zPCI devices

    The KVM_S390_ZPCI_OP ioctl provides a mechanism for managing
    hardware-assisted virtualization features for s390x zPCI passthrough.
    Add the first 2 operations, which can be used to enable/disable
    the specified device for Adapter Event Notification interpretation.

Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Acked-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
    Link: https://lore.kernel.org/r/20220606203325.110625-21-mjrosato@linux.ibm.com


Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>

Conflicts:
    include/uapi/linux/kvm.h (different KVM_CAP_* list in downstream)
    Documentation/virt/kvm/api.rst (due to upstream merge d41b5e01)
    arch/s390/kvm/kvm-s390.c (due to upstream merge d41b5e01)
Signed-off-by: Thomas Huth <thuth@redhat.com>