[PATCH v4 0/6] 32bit ARM branch predictor hardening

[Andre Przywara]

Hi,

On 01/02/18 11:07, Marc Zyngier wrote:
> This small series implements some basic BP hardening by invalidating
> the BTB on 32bit ARM CPUs that are known to be susceptible to aliasing
> attacks (Spectre variant 2). It doesn't help non-ARM 32bit CPUs, nor
> 32bit kernels that run on 64bit capable CPUs. This series doesn't
> mitigate Spectre variant 1 either.

I gave this a test with running both native workloads and some tests in
a KVM guest, both with an unpatched and a patched firmware on a Calxeda
Midway (Cortex-A15 cores).

Tested-by: Andre Przywara <andre.przywara at arm.com>

Thanks!
Andre.