Heiko Carstens 232b8e3b1d KVM: s390: remove change-recording override support ... Change-recording override (CO) was never implemented in any machine. According to the architecture it is unpredictable if a translation-specification exception will be recognized if the bit is set and EDAT1 does not apply. Therefore the easiest solution is to simply ignore the bit. This also fixes commit cd1836f583 ("KVM: s390: instruction-execution-protection support"). A guest may enable instruction-execution-protection (IEP) but not EDAT1. In such a case the guest_translate() function (arch/s390/kvm/gaccess.c) will report a specification exception on pages that have the IEP bit set while it should not. It might make sense to add full IEP support to guest_translate() and the GACC_IFETCH case. However, as far as I can tell the GACC_IFETCH case is currently only used after an instruction was executed in order to fetch the failing instruction. So there is no additional problem *currently*. Fixes: cd1836f583 ("KVM: s390: instruction-execution-protection support") Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>		2017-04-03 12:45:08 +02:00
..
diag.c	KVM: s390: provide logging for diagnose 0x500	2016-06-10 12:07:26 +02:00
gaccess.c	KVM: s390: remove change-recording override support	2017-04-03 12:45:08 +02:00
gaccess.h	KVM: s390: prepare to read random guest instructions	2017-01-30 11:19:16 +01:00
guestdbg.c	KVM: s390: guestdbg: filter PER i-fetch on EXECUTE properly	2017-01-30 11:19:17 +01:00
intercept.c	KVM: s390: detect some program check loops	2017-02-06 12:35:53 +01:00
interrupt.c	ktime: Cleanup ktime_set() usage	2016-12-25 17:21:22 +01:00
irq.h
Kconfig	KVM: halt_polling: provide a way to qualify wakeups during poll	2016-05-13 17:29:23 +02:00
kvm-s390.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
kvm-s390.h	KVM: s390: guestdbg: filter PER i-fetch on EXECUTE properly	2017-01-30 11:19:17 +01:00
Makefile	KVM: s390: vsie: initial support for nested virtualization	2016-06-21 09:43:33 +02:00
priv.c	sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>	2017-03-02 08:42:37 +01:00
sigp.c	KVM: s390: don't use CPUSTAT_WAIT to detect if a VCPU is idle	2016-06-21 09:43:45 +02:00
sthyi.c	KVM: s390: Fix STHYI buffer alignment for diag224	2016-10-26 13:46:44 +02:00
trace-s390.h	KVM: s390: obey kptr_restrict in traces	2015-12-15 17:06:32 +01:00
trace.h	KVM: s390: trace and count all skey intercepts	2016-06-10 12:07:31 +02:00
vsie.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00