linux/arch/s390
Martin Schwidefsky 0a61b222df KVM: s390/mm: use software dirty bit detection for user dirty tracking
Switch the user dirty bit detection used for migration from the hardware
provided host change-bit in the pgste to a fault based detection method.
This reduced the dependency of the host from the storage key to a point
where it becomes possible to enable the RCP bypass for KVM guests.

The fault based dirty detection will only indicate changes caused
by accesses via the guest address space. The hardware based method
can detect all changes, even those caused by I/O or accesses via the
kernel page table. The KVM/qemu code needs to take this into account.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-04-22 09:36:26 +02:00
..
appldata s390/appldata_os: fix cpu array size calculation 2014-03-07 15:25:55 +01:00
boot s390/boot: Install bzImage as default kernel image 2013-11-15 14:08:36 +01:00
configs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2014-04-12 14:49:50 -07:00
crypto crypto: s390 - fix des and des3_ede ctr concurrency issue 2014-01-30 21:45:14 +08:00
hypfs hypfs: Add clarification for "weight_min" attribute 2014-03-17 15:53:03 +01:00
include KVM: s390/mm: use software dirty bit detection for user dirty tracking 2014-04-22 09:36:26 +02:00
kernel s390/compat: fix typo 2014-04-11 13:53:35 +02:00
kvm KVM: s390: Don't enable skeys by default 2014-04-22 09:36:26 +02:00
lib s390/uaccess: fix possible register corruption in strnlen_user_srst() 2014-04-11 13:53:33 +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: use software dirty bit detection for user dirty tracking 2014-04-22 09:36:26 +02:00
net net: filter: add jited flag to indicate jit compiled filters 2014-03-31 00:45:08 -04:00
oprofile s390/irq: Use defines for external interruption codes 2014-04-03 14:30:52 +02:00
pci Driver core / sysfs patches for 3.15-rc1 2014-04-01 16:28:19 -07:00
Kbuild s390/pci: base support 2012-11-30 15:40:45 +01:00
Kconfig Merge git://git.infradead.org/users/eparis/audit 2014-04-12 12:38:53 -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
defconfig s390: update defconfigs 2014-03-17 15:52:57 +01:00