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KVM: s390: Return error on SIDA memop on normal guest
authorJanis Schoetterl-Glausch <scgl@linux.ibm.com>
Fri, 28 Jan 2022 14:06:43 +0000 (15:06 +0100)
committerChristian Borntraeger <borntraeger@linux.ibm.com>
Wed, 2 Feb 2022 09:02:00 +0000 (10:02 +0100)
commitaa126d13d3440d0b257e9da0cd33033789e80a1a
tree686c763a0a2f91f34cd9f510ccf8df1c5ebed1b8tree | snapshot
parent0eccad46092e2832898bd8d7d1bb5e91c08fed92commit | diff
KVM: s390: Return error on SIDA memop on normal guest

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: 511ead40324d (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>
arch/s390/kvm/kvm-s390.c diff | blob | history
Linux Kernel Source Tree.