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| author | David Hildenbrand <david@redhat.com> | 2018-05-09 16:12:17 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2018-05-17 12:28:45 +0200 |
| commit | f4a551b72358facbbe5714248dff78404272feee (patch) | |
| tree | 5219b9ba3b89949c310affd711e1aeaf86427c4b | |
| parent | 75bc37fefc4471e718ba8e651aa74673d4e0a9eb (diff) | |
| download | linux-f4a551b72358facbbe5714248dff78404272feee.tar.gz | |
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>
| -rw-r--r-- | arch/s390/kvm/vsie.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c index 8961e3970901..969882b54266 100644 --- a/arch/s390/kvm/vsie.c +++ b/arch/s390/kvm/vsie.c @@ -578,7 +578,7 @@ static int pin_blocks(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page) gpa = READ_ONCE(scb_o->itdba) & ~0xffUL; if (gpa && (scb_s->ecb & ECB_TE)) { - if (!(gpa & ~0x1fffU)) { + if (!(gpa & ~0x1fffUL)) { rc = set_validity_icpt(scb_s, 0x0080U); goto unpin; } |