linux-hardened/arch/s390
Dominik Dingel 964c2c05c9 s390/mm: Clear huge page storage keys on enable_skey
When a guest starts using storage keys, we trap and set a default one
for its whole valid address space. With this patch we are now able to
do that for large pages.

To speed up the storage key insertion, we use
__storage_key_init_range, which in-turn will use sske_frame to set
multiple storage keys with one instruction. As it has been previously
used for debuging we have to get rid of the default key check and make
it quiescing.

Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com>
[replaced page_set_storage_key loop with __storage_key_init_range]
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
2018-07-30 11:20:18 +01:00
..
appldata treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
boot s390/boot: remove unused COMPILE_VERSION and ccflags-y 2018-04-16 09:10:24 +02:00
configs s390: update defconfigs 2018-04-27 06:51:31 +02:00
crypto s390/archrandom: Rework arch random implementation. 2018-05-30 11:18:04 +02:00
hypfs treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
include s390/mm: Add huge page dirty sync support 2018-07-30 11:20:18 +01:00
kernel treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
kvm s390/mm: Add huge page dirty sync support 2018-07-30 11:20:18 +01:00
lib s390: introduce compile time check for empty .bss section 2018-05-09 10:55:01 +02:00
mm s390/mm: Clear huge page storage keys on enable_skey 2018-07-30 11:20:18 +01:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-06-06 18:39:49 -07:00
numa s390: add a few more SPDX identifiers 2017-12-05 07:51:09 +01:00
oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-06-04 20:27:54 -07:00
purgatory s390/purgatory: Fix endless interrupt loop 2018-05-18 07:24:35 +02:00
scripts s390: introduce compile time check for empty .bss section 2018-05-09 10:55:01 +02:00
tools KVM: s390: implement CPU model only facilities 2018-03-09 09:44:17 +00:00
defconfig s390: update defconfig 2018-04-16 10:29:34 +02:00
Kbuild s390/kexec_file: Add purgatory 2018-04-16 09:10:22 +02:00
Kconfig mm: introduce ARCH_HAS_PTE_SPECIAL 2018-06-07 17:34:35 -07:00
Kconfig.debug License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile kbuild: add endianness flag to CHEKCFLAGS 2018-05-29 22:05:08 +09:00