tree 45c45e881ca3806a5d4c859519e471348c0d4a2d
parent 9e0fdb4145205bea95c2888a195c3ead2652f120
author Heiko Carstens <heiko.carstens@de.ibm.com> 1362485682 +0100
committer Marcelo Tosatti <mtosatti@redhat.com> 1362684080 -0300

s390/kvm,tprot: use new gmap_translate() function

When out-of-memory the tprot code incorrectly injected a program check
for the guest which reported an addressing exception even if the guest
address was valid.
Let's use the new gmap_translate() which translates a guest address to
a user space address whithout the chance of running into an out-of-memory
situation.
Also make it more explicit that for -EFAULT we won't find a vma.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>