From: David Hildenbrand <dahi@linux.vnet.ibm.com>
Date: Thu, 10 Apr 2014 15:35:00 +0000 (+0200)
Subject: KVM: s390: implement KVM_(S|G)ET_MP_STATE for user space state control
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~184^2~20^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6352e4d2dd9a349024a41356148eced553e1dce4;p=pandora-kernel.git

KVM: s390: implement KVM_(S|G)ET_MP_STATE for user space state control

This patch
- adds s390 specific MP states to linux headers and documents them
- implements the KVM_{SET,GET}_MP_STATE ioctls
- enables KVM_CAP_MP_STATE
- allows user space to control the VCPU state on s390.

If user space sets the VCPU state using the ioctl KVM_SET_MP_STATE, we can disable
manual changing of the VCPU state and trust user space to do the right thing.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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