KVM: add kvm_is_error_gpa() helper
authorHeiko Carstens <heiko.carstens@de.ibm.com>
Wed, 1 Jan 2014 15:09:21 +0000 (16:09 +0100)
committerChristian Borntraeger <borntraeger@de.ibm.com>
Tue, 22 Apr 2014 11:24:35 +0000 (13:24 +0200)
commitdfeec843fb237d73947e818f961e8d6f0df22b01
treea5e854b8a77d0fd241f1d2d2dfc8bdf019b95d04
parentbcd846837c43ccccc932036d5a634bee48f1ff4f
KVM: add kvm_is_error_gpa() helper

It's quite common (in the s390 guest access code) to test if a guest
physical address points to a valid guest memory area or not.
So add a simple helper function in common code, since this might be
of interest for other architectures as well.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
include/linux/kvm_host.h