Julius Niedworok aca411a4b1 KVM: s390: reset KVM_REQ_MMU_RELOAD if mapping the prefix failed ... When triggering KVM_RUN without a user memory region being mapped (KVM_SET_USER_MEMORY_REGION) a validity intercept occurs. This could happen, if the user memory region was not mapped initially or if it was unmapped after the vcpu is initialized. The function kvm_s390_handle_requests checks for the KVM_REQ_MMU_RELOAD bit. The check function always clears this bit. If gmap_mprotect_notify returns an error code, the mapping failed, but the KVM_REQ_MMU_RELOAD was not set anymore. So the next time kvm_s390_handle_requests is called, the execution would fall trough the check for KVM_REQ_MMU_RELOAD. The bit needs to be resetted, if gmap_mprotect_notify returns an error code. Resetting the bit with kvm_make_request(KVM_REQ_MMU_RELOAD, vcpu) fixes the bug. Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Julius Niedworok <jniedwor@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>		2016-08-12 09:11:08 +02:00
..
diag.c	KVM: s390: provide logging for diagnose 0x500	2016-06-10 12:07:26 +02:00
gaccess.c	s390/mm: support real-space for gmap shadows	2016-06-20 09:55:02 +02:00
gaccess.h	s390/mm: take ipte_lock during shadow faults	2016-06-20 09:54:40 +02:00
guestdbg.c	KVM: s390: inject PER i-fetch events on applicable icpts	2016-07-05 12:02:56 +02:00
intercept.c	- ARM: GICv3 ITS emulation and various fixes. Removal of the old	2016-08-02 16:11:27 -04:00
interrupt.c	KVM: pass struct kvm to kvm_set_routing_entry	2016-07-14 09:03:56 +02:00
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	KVM: s390: reset KVM_REQ_MMU_RELOAD if mapping the prefix failed	2016-08-12 09:11:08 +02:00
kvm-s390.h	KVM: s390: inject PER i-fetch events on applicable icpts	2016-07-05 12:02:56 +02:00
Makefile	KVM: s390: vsie: initial support for nested virtualization	2016-06-21 09:43:33 +02:00
priv.c	KVM: s390: let ptff intercepts result in cc=3	2016-07-18 14:15:00 +02:00
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: Limit sthyi execution	2016-06-10 12:07:12 +02:00
trace-s390.h
trace.h	KVM: s390: trace and count all skey intercepts	2016-06-10 12:07:31 +02:00
vsie.c	KVM: remove kvm_guest_enter/exit wrappers	2016-07-01 11:03:21 +02:00