KVM: s390: Return error on SIDA memop on normal guest

KVM: s390: Return error on SIDA memop on normal guest

Origin: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit?id=b62267b8b06e9b8bb429ae8f962ee431e6535d60
Bug-Debian-Security: https://security-tracker.debian.org/tracker/CVE-2022-0516

commit 2c212e1baedcd782b2535a3f86bc491977677c0e upstream.

Refuse SIDA memops on guests which are not protected.
For normal guests, the secure instruction data address designation,
which determines the location we access, is not under control of KVM.

Fixes: 19e122776886 (KVM: S390: protvirt: Introduce instruction data area bounce buffer)
Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Gbp-Pq: Topic bugfix/s390x
Gbp-Pq: Name KVM-s390-Return-error-on-SIDA-memop-on-normal-guest.patch