linux/arch/s390
David Hildenbrand b028ee3edd KVM: s390: synchronize more registers with kvm_run
In order to reduce the number of syscalls when dropping to user space, this
patch enables the synchronization of the following "registers" with kvm_run:
- ARCH0: CPU timer, clock comparator, TOD programmable register,
         guest breaking-event register, program parameter
- PFAULT: pfault parameters (token, select, compare)

The registers are grouped to reduce the overhead when syncing.

As this grows the number of sync registers quite a bit, let's move the code
synchronizing registers with kvm_run from kvm_arch_vcpu_ioctl_run() into
separate helper routines.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-08-25 14:35:53 +02:00
..
appldata s390/appldata: add slab.h for kzalloc/kfree 2014-05-20 08:58:51 +02:00
boot s390/boot: fix boot of compressed kernel built with gcc 4.9 2014-05-27 10:26:04 +02:00
configs tgt: defconfig cleanup 2014-07-17 22:07:44 +02:00
crypto crypto: s390 - fix aes,des ctr mode concurrency finding. 2014-05-08 21:46:09 +08:00
hypfs hypfs: Add clarification for "weight_min" attribute 2014-03-17 15:53:03 +01:00
include KVM: s390: synchronize more registers with kvm_run 2014-08-25 14:35:53 +02:00
kernel Merge branch 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc 2014-08-09 09:58:12 -07:00
kvm KVM: s390: synchronize more registers with kvm_run 2014-08-25 14:35:53 +02:00
lib s390/spinlock: refactor arch_spin_lock_wait[_flags] 2014-05-20 08:58:55 +02:00
math-emu s390: fix save and restore of the floating-point-control register 2013-10-24 17:17:11 +02:00
mm KVM: s390/mm: try a cow on read only pages for key ops 2014-08-25 14:35:28 +02:00
net net: filter: split 'struct sk_filter' into socket and bpf parts 2014-08-02 15:03:58 -07:00
oprofile s390/oprofile: make return of 0 explicit 2014-05-27 10:26:00 +02:00
pci s390/pci: introduce lazy IOTLB flushing for DMA unmap 2014-07-22 09:26:24 +02:00
defconfig s390: update default configuration 2014-06-11 10:13:30 +02:00
Kbuild s390/pci: base support 2012-11-30 15:40:45 +01:00
Kconfig kexec: load and relocate purgatory at kernel load time 2014-08-08 15:57:32 -07:00
Kconfig.debug Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS 2013-04-30 17:04:09 -07:00
Makefile s390: allow to set gcc -mtune flag 2013-10-31 09:54:01 +01:00