diff options
| author | Janosch Frank <frankja@linux.ibm.com> | 2020-09-08 09:05:04 -0400 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-09-14 10:08:07 +0200 |
| commit | cd4d3d5f21ddbfae3f686ac0ff405f21f7847ad3 (patch) | |
| tree | a3b50dec29b84d42598df46b2f1ab7981ff2175a /kernel | |
| parent | 73ac74c7d489756d2313219a108809921dbfaea1 (diff) | |
s390: add 3f program exception handler
Program exception 3f (secure storage violation) can only be detected
when the CPU is running in SIE with a format 4 state description,
e.g. running a protected guest. Because of this and because user
space partly controls the guest memory mapping and can trigger this
exception, we want to send a SIGSEGV to the process running the guest
and not panic the kernel.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Cc: <stable@vger.kernel.org> # 5.7
Fixes: 084ea4d611a3 ("s390/mm: add (non)secure page access exceptions handlers")
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions