James Morse 13e05550e1 arm64: kernel: Add support for User Access Override ... 'User Access Override' is a new ARMv8.2 feature which allows the unprivileged load and store instructions to be overridden to behave in the normal way. This patch converts {get,put}_user() and friends to use ldtr*/sttr* instructions - so that they can only access EL0 memory, then enables UAO when fs==KERNEL_DS so that these functions can access kernel memory. This allows user space's read/write permissions to be checked against the page tables, instead of testing addr<USER_DS, then using the kernel's read/write permissions. Signed-off-by: James Morse <james.morse@arm.com> [catalin.marinas@arm.com: move uao_thread_switch() above dsb()] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> (cherry picked from commit 57f4959bad) Signed-off-by: Alex Shi <alex.shi@linaro.org>		2016-05-11 22:19:23 +08:00
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alpha	mm: mlock: add mlock flags to enable VM_LOCKONFAULT usage	2015-11-05 19:34:48 -08:00
arc	ARC: bitops: Remove non relevant comments	2016-04-12 09:08:56 -07:00
arm	ARM: dts: pxa: fix dma engine node to pxa3xx-nand	2016-05-04 14:48:53 -07:00
arm64	arm64: kernel: Add support for User Access Override	2016-05-11 22:19:23 +08:00
avr32	dmaengine updates for 4.4-rc1	2015-11-10 10:05:17 -08:00
blackfin	treewide: Remove old email address	2015-11-23 09:44:58 +01:00
c6x
cris	cris: Drop reference to get_cmos_time()	2015-11-02 20:03:05 +01:00
frv	kmap_atomic_to_page() has no users, remove it	2015-11-09 15:11:24 -08:00
h8300	h8300 update for v4.4	2015-11-12 15:26:39 -08:00
hexagon
ia64	ia64: define ioremap_uc()	2016-04-12 09:08:54 -07:00
m32r	m32r: fix m32104ut_defconfig build fail	2016-02-25 12:01:22 -08:00
m68k	m68k: Wire up mlock2	2015-11-22 11:35:26 +01:00
metag	Metag architecture changes for v4.4	2015-11-10 16:24:25 -08:00
microblaze	Revert "scatterlist: use sg_phys()"	2015-12-15 12:54:06 -08:00
mips	pcmcia: db1xxx_ss: fix last irq_to_gpio user	2016-04-20 15:42:09 +09:00
mn10300	mn10300: Select CONFIG_HAVE_UID16 to fix build failure	2015-11-30 07:01:40 -08:00
nios2	nios2: fix cache coherency	2015-11-26 22:25:58 +08:00
openrisc
parisc	parisc: Unbreak handling exceptions from kernel modules	2016-04-20 15:41:52 +09:00
powerpc	powerpc: Update TM user feature bits in scan_features()	2016-05-04 14:48:44 -07:00
s390	s390/pci: add extra padding to function measurement block	2016-05-04 14:48:44 -07:00
score
sh	sched/preempt, sh: kmap_coherent relies on disabled preemption	2016-04-12 09:08:36 -07:00
sparc	sparc64: fix incorrect sign extension in sys_sparc64_personality	2016-03-03 15:07:17 -08:00
tile	tile: provide CONFIG_PAGE_SIZE_64KB etc for tilepro	2016-01-05 08:16:09 -05:00
um	fs/coredump: prevent fsuid=0 dumps into user-controlled directories	2016-04-12 09:08:58 -07:00
unicore32	pwm: Changes for v4.4-rc1	2015-11-11 09:16:10 -08:00
x86	x86/mm/kmmio: Fix mmiotrace for hugepages	2016-05-04 14:48:52 -07:00
xtensa	xtensa: clear all DBREAKC registers on start	2016-04-12 09:08:55 -07:00
.gitignore
Kconfig