tree 8af432a51fa27ca1dc415bffee189d50b03ce2c9
parent 16b05e94a2d1757cbb98de068c662d58a6919613
author Dimitris Papastamos <dimitris.papastamos@arm.com> 1520861222 +0000
committer Dimitris Papastamos <dimitris.papastamos@arm.com> 1521026144 +0000

Use PFR0 to identify need for mitigation of CVE-2017-5715

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 A72 and A73.

Change-Id: Ide24fb6efc77c548e4296295adc38dca87d042ee
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>