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| author | David Hildenbrand <david@redhat.com> | 2018-05-09 16:12:17 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-30 07:51:50 +0200 |
| commit | 16c463a4ecfa9f6720a79df3dcb49cbf89905051 (patch) | |
| tree | 1c8284eca4d88fcddbda6a98a1133e96331ba9b6 /arch/s390 | |
| parent | 9c5eee605677b460e6f759e6875769cc104d5ee0 (diff) | |
| download | linux-exynos-16c463a4ecfa9f6720a79df3dcb49cbf89905051.tar.gz linux-exynos-16c463a4ecfa9f6720a79df3dcb49cbf89905051.tar.bz2 linux-exynos-16c463a4ecfa9f6720a79df3dcb49cbf89905051.zip | |
KVM: s390: vsie: fix < 8k check for the itdba
commit f4a551b72358facbbe5714248dff78404272feee upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/s390')
| -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 eb7b530d1783..4f1f5fc8139d 100644 --- a/arch/s390/kvm/vsie.c +++ b/arch/s390/kvm/vsie.c @@ -590,7 +590,7 @@ 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; } |