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

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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>

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Heiko Carstens 2013-03-05 13:14:42 +01:00 • committed by Marcelo Tosatti

parent 9e0fdb4145

commit 59a1fa2d80

1 changed files with 9 additions and 12 deletions

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arch/s390/kvm/priv.c

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