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KVM: s390: vsie: fix < 8k check for the itdba
authorDavid Hildenbrand <david@redhat.com>
Wed, 9 May 2018 14:12:17 +0000 (16:12 +0200)
committerChristian Borntraeger <borntraeger@de.ibm.com>
Thu, 17 May 2018 10:28:45 +0000 (12:28 +0200)
commitf4a551b72358facbbe5714248dff78404272feee
tree5219b9ba3b89949c310affd711e1aeaf86427c4b
parent75bc37fefc4471e718ba8e651aa74673d4e0a9eb
KVM: s390: vsie: fix < 8k check for the itdba

By missing an "L", we might detect some addresses to be <8k,
although they are not.

e.g. for itdba = 100001fff
!(gpa & ~0x1fffU) -> 1
!(gpa & ~0x1fffUL) -> 0

So we would report a SIE validity intercept although everything is fine.

Fixes: 166ecb3 ("KVM: s390: vsie: support transactional execution")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Cc: stable@vger.kernel.org # v4.8+
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
arch/s390/kvm/vsie.c