diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2018-11-07 11:43:50 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-23 08:20:38 +0100 |
| commit | b7888c6a365aae8e7ac9974f514a776ef60c372d (patch) | |
| tree | 1e0cf92ce8dc7ea4ca2ffbe4c4f9bfd5e94cc038 /REPORTING-BUGS | |
| parent | 51836963fa6f41d12a5baff7a01faea2a0ce7d90 (diff) | |
ARM: KVM: invalidate icache on guest exit for Cortex-A15
Commit 0c47ac8cd157727e7a532d665d6fb1b5fd333977 upstream.
In order to avoid aliasing attacks against the branch predictor
on Cortex-A15, let's invalidate the BTB on guest exit, which can
only be done by invalidating the icache (with ACTLR[0] being set).
We use the same hack as for A12/A17 to perform the vector decoding.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Boot-tested-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David A. Long <dave.long@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'REPORTING-BUGS')
0 files changed, 0 insertions, 0 deletions