[PATCH 08/14] ARM: spectre-v2: harden user aborts in kernel space

[Florian Fainelli]

On 05/16/2018 04:01 AM, Russell King wrote:
> In order to prevent aliasing attacks on the branch predictor,
> invalidate the BTB or instruction cache on CPUs that are known to be
> affected when taking an abort on a address that is outside of a user
> task limit:
> 
> Cortex A8, A9, A12, A17, A73, A75: flush BTB.
> Cortex A15, Brahma B15: invalidate icache.
> 
> Signed-off-by: Russell King <rmk+kernel at armlinux.org.uk>

Reviewed-by: Florian Fainelli <f.fainelli at gmail.com>
-- 
Florian