linux/arch/s390
Collin L. Walling 8fa1696ea7 KVM: s390: Multiple Epoch Facility support
Allow for the enablement of MEF and the support for the extended
epoch in SIE and VSIE for the extended guest TOD-Clock.

A new interface is used for getting/setting a guest's extended TOD-Clock
that uses a single ioctl invocation, KVM_S390_VM_TOD_EXT.  Since the
host time is a moving target that might see an epoch switch or STP sync
checks we need an atomic ioctl and cannot use the exisiting two
interfaces. The old method of getting and setting the guest TOD-Clock is
still retained and is used when the old ioctls are called.

Signed-off-by: Collin L. Walling <walling@linux.vnet.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2017-08-29 15:15:54 +02:00
..
appldata sched/headers: Move task statistics APIs from <linux/sched.h> to <linux/sched/stat.h> 2017-03-03 01:43:43 +01:00
boot s390/decompressor: fix initrd corruption caused by bss clear 2017-03-22 08:21:20 +01:00
configs s390: update defconfig 2017-06-08 15:53:48 +02:00
crypto s390/crypto: fix aes/paes Kconfig dependeny 2017-06-12 16:25:58 +02:00
hypfs
include KVM: s390: Multiple Epoch Facility support 2017-08-29 15:15:54 +02:00
kernel s390/mm: tag normal pages vs pages used in page tables 2017-07-25 06:55:28 +02:00
kvm KVM: s390: Multiple Epoch Facility support 2017-08-29 15:15:54 +02:00
lib s390/uaccess: use sane length for __strncpy_from_user() 2017-05-09 10:43:24 +02:00
mm s390/mm,kvm: use nodat PGSTE tag to optimize TLB flushing 2017-07-25 06:55:35 +02:00
net bpf: Add jited_len to struct bpf_prog 2017-06-06 15:41:24 -04:00
numa
oprofile
pci This is the first pull request for the new dma-mapping subsystem 2017-07-06 19:20:54 -07:00
tools KVM: s390: Multiple Epoch Facility support 2017-08-29 15:15:54 +02:00
defconfig s390: update defconfig 2017-06-08 15:53:48 +02:00
Kbuild s390/crypto: Provide s390 specific arch random functionality. 2017-04-26 13:41:35 +02:00
Kconfig mm/hugetlb: clean up ARCH_HAS_GIGANTIC_PAGE 2017-07-06 16:24:33 -07:00
Kconfig.debug
Makefile