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linux-next/arch/s390/kvm
Janosch Frank 811ea79711 KVM: s390: protvirt: Only sync fmt4 registers
A lot of the registers are controlled by the Ultravisor and never
visible to KVM. Also some registers are overlayed, like gbea is with
sidad, which might leak data to userspace.

Hence we sync a minimal set of registers for both SIE formats and then
check and sync format 2 registers if necessary.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
[borntraeger@de.ibm.com: patch merging, splitting, fixing]
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2020-02-27 19:47:12 +01:00
..
diag.c KVM: s390: Do not yield when target is already running 2019-10-10 13:18:40 +02:00
gaccess.c treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
gaccess.h KVM: s390: Remove redundant license text 2017-12-06 09:18:42 +01:00
guestdbg.c KVM: s390: introduce defines for control registers 2018-05-17 09:02:27 +02:00
intercept.c KVM: s390: protvirt: Write sthyi data to instruction data area 2020-02-27 19:47:11 +01:00
interrupt.c KVM: s390: protvirt: Add SCLP interrupt handling 2020-02-27 19:47:11 +01:00
irq.h KVM: s390: Remove redundant license text 2017-12-06 09:18:42 +01:00
Kconfig * ARM: support for SVE and Pointer Authentication in guests, PMU improvements 2019-05-17 10:33:30 -07:00
kvm-s390.c KVM: s390: protvirt: Only sync fmt4 registers 2020-02-27 19:47:12 +01:00
kvm-s390.h KVM: s390: protvirt: Add initial vm and cpu lifecycle handling 2020-02-27 19:47:11 +01:00
Makefile KVM: s390: protvirt: Add initial vm and cpu lifecycle handling 2020-02-27 19:47:11 +01:00
priv.c KVM: s390: protvirt: STSI handling 2020-02-27 19:47:12 +01:00
pv.c KVM: S390: protvirt: Introduce instruction data area bounce buffer 2020-02-27 19:47:11 +01:00
sigp.c KVM: s390: introduce and use kvm_s390_test_cpuflags() 2018-01-24 17:46:42 +01:00
trace-s390.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vsie.c KVM: s390: vsie: Return correct values for Invalid CRYCB format 2019-04-29 09:01:22 +02:00