linux/arch/arm64
Robin Murphy 022620eed3 arm64: Implement array_index_mask_nospec()
Provide an optimised, assembly implementation of array_index_mask_nospec()
for arm64 so that the compiler is not in a position to transform the code
in ways which affect its ability to inhibit speculation (e.g. by introducing
conditional branches).

This is similar to the sequence used by x86, modulo architectural differences
in the carry/borrow flags.

Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-02-06 22:53:30 +00:00
..
boot Amlogic fixes for v4.15-rc 2017-12-09 20:23:29 -08:00
configs arm64: defconfig: enable CONFIG_GPIO_UNIPHIER 2017-10-30 14:41:54 +01:00
crypto License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
include arm64: Implement array_index_mask_nospec() 2018-02-06 22:53:30 +00:00
kernel arm64: idmap: Use "awx" flags for .idmap.text .pushsection directives 2018-02-06 22:53:27 +00:00
kvm arm64: assembler: Change order of macro arguments in phys_to_ttbr 2018-02-06 22:53:21 +00:00
lib arm64: kpti: Fix the interaction between ASID switching and software PAN 2018-01-16 17:37:48 +00:00
mm arm64: idmap: Use "awx" flags for .idmap.text .pushsection directives 2018-02-06 22:53:27 +00:00
net bpf, arm64: implement jiting of BPF_J{LT, LE, SLT, SLE} 2017-08-09 16:53:56 -07:00
xen arm64: kpti: Fix the interaction between ASID switching and software PAN 2018-01-16 17:37:48 +00:00
Kconfig arm64: Add software workaround for Falkor erratum 1041 2018-02-06 22:53:13 +00:00
Kconfig.debug arm64: relocation testing module 2017-04-04 17:03:32 +01:00
Kconfig.platforms ARM: SoC driver updates for v4.15 2017-11-16 16:05:01 -08:00
Makefile arm64: ftrace: emit ftrace-mod.o contents through code 2017-12-01 13:04:59 +00:00