tree 7e444674777fad893eb4ab353267c397c44db57c
parent c57ee5faf4503b0cd586c3af663262a3d5599fc1
author Fan Zhang <zhangfan@linux.vnet.ibm.com> 1452162269 +0800
committer Christian Borntraeger <borntraeger@de.ibm.com> 1452174506 +0100

KVM: s390: implement the RI support of guest

This patch adds runtime instrumentation support for KVM guest. We need to
setup a save area for the runtime instrumentation-controls control block(RICCB)
and implement the necessary interfaces to live migrate the guest settings.

We setup the sie control block in a way, that the runtime
instrumentation instructions of a guest are handled by hardware.

We also add a capability KVM_CAP_S390_RI to make this feature opt-in as
it needs migration support.

Signed-off-by: Fan Zhang <zhangfan@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>