linux/arch/arm64
Will Deacon bd4fb6d270 arm64: Add support for SB barrier and patch in over DSB; ISB sequences
We currently use a DSB; ISB sequence to inhibit speculation in set_fs().
Whilst this works for current CPUs, future CPUs may implement a new SB
barrier instruction which acts as an architected speculation barrier.

On CPUs that support it, patch in an SB; NOP sequence over the DSB; ISB
sequence and advertise the presence of the new instruction to userspace.

Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-12-06 16:47:04 +00:00
..
boot ARM: dts: stratix10: fix multicast filtering 2018-11-07 08:09:50 -08:00
configs arm64: defconfig: Enable some IPMI configs 2018-11-02 11:39:50 -07:00
crypto crypto: arm64/aes-blk - ensure XTS mask is always loaded 2018-10-12 14:20:45 +08:00
include arm64: Add support for SB barrier and patch in over DSB; ISB sequences 2018-12-06 16:47:04 +00:00
kernel arm64: Add support for SB barrier and patch in over DSB; ISB sequences 2018-12-06 16:47:04 +00:00
kvm KVM updates for v4.20 2018-10-25 17:57:35 -07:00
lib arm64/lib: improve CRC32 performance for deep pipelines 2018-11-30 13:58:04 +00:00
mm arm64: mm: apply r/o permissions of VM areas to its linear alias as well 2018-11-20 11:38:26 +00:00
net bpf, arm64: save 4 bytes in prologue when ebpf insns came from cbpf 2018-05-14 19:11:45 -07:00
xen
Kconfig arm64: capabilities: Merge entries for ARM64_WORKAROUND_CLEAN_CACHE 2018-12-06 11:47:44 +00:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Kconfig.platforms ARM: SoC platform updates for 4.20 2018-10-29 15:37:33 -07:00
Makefile arm64: relocatable: fix inconsistencies in linker script and options 2018-12-04 12:48:25 +00:00