tree db65d33adc45ff13b8dc2a6eb5252a94d1405057
parent c52ebdcefc3769a82cf3877e160477335716149a
author Dimitris Papastamos <dimitris.papastamos@arm.com> 1514908381 +0000
committer Dimitris Papastamos <dimitris.papastamos@arm.com> 1515666375 +0000

Use PFR0 to identify need for mitigation of CVE-2017-5915

If the CSV2 field reads as 1 then branch targets trained in one
context cannot affect speculative execution in a different context.
In that case skip the workaround on Cortex A75.

Change-Id: I4d5504cba516a67311fb5f0657b08f72909cbd38
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>