linux/arch/arm64/lib
Catalin Marinas bd38967d40 arm64: Factor out PAN enabling/disabling into separate uaccess_* macros
This patch moves the directly coded alternatives for turning PAN on/off
into separate uaccess_{enable,disable} macros or functions. The asm
macros take a few arguments which will be used in subsequent patches.

Note that any (unlikely) access that the compiler might generate between
uaccess_enable() and uaccess_disable(), other than those explicitly
specified by the user access code, will not be protected by PAN.

Cc: Will Deacon <will.deacon@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Kees Cook <keescook@chromium.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-11-21 17:33:47 +00:00
..
atomic_ll_sc.c arm64: introduce CONFIG_ARM64_LSE_ATOMICS as fallback to ll/sc atomics 2015-07-27 15:28:50 +01:00
bitops.S arm64: atomics: prefetch the destination word for write prior to stxr 2015-07-27 15:28:53 +01:00
clear_page.S
clear_user.S arm64: Factor out PAN enabling/disabling into separate uaccess_* macros 2016-11-21 17:33:47 +00:00
copy_from_user.S arm64: Factor out PAN enabling/disabling into separate uaccess_* macros 2016-11-21 17:33:47 +00:00
copy_in_user.S arm64: Factor out PAN enabling/disabling into separate uaccess_* macros 2016-11-21 17:33:47 +00:00
copy_page.S arm64: use alternative auto-nop 2016-09-12 10:46:07 +01:00
copy_template.S arm64: Change memcpy in kernel to use the copy template file 2015-10-07 11:34:43 +01:00
copy_to_user.S arm64: Factor out PAN enabling/disabling into separate uaccess_* macros 2016-11-21 17:33:47 +00:00
delay.c
Makefile arm64: lse: deal with clobbered IP registers after branch via PLT 2016-02-26 18:35:02 +00:00
memchr.S arm64: use ENDPIPROC() to annotate position independent assembler routines 2015-10-12 16:19:45 +01:00
memcmp.S arm64: Fix misspellings in comments. 2016-03-04 18:19:17 +00:00
memcpy.S arm64: add KASAN support 2015-10-12 17:46:36 +01:00
memmove.S arm64: add KASAN support 2015-10-12 17:46:36 +01:00
memset.S arm64: add KASAN support 2015-10-12 17:46:36 +01:00
strchr.S arm64: klib: Optimised string functions 2013-03-21 17:39:30 +00:00
strcmp.S arm64: use ENDPIPROC() to annotate position independent assembler routines 2015-10-12 16:19:45 +01:00
strlen.S arm64: use ENDPIPROC() to annotate position independent assembler routines 2015-10-12 16:19:45 +01:00
strncmp.S arm64: use ENDPIPROC() to annotate position independent assembler routines 2015-10-12 16:19:45 +01:00
strnlen.S arm64/efi: Make strnlen() available to the EFI namespace 2016-02-16 10:32:10 +00:00
strrchr.S arm64: klib: Optimised string functions 2013-03-21 17:39:30 +00:00