Marc Zyngier b1d4cb6983 arm: KVM: Make unexpected register accesses inject an undef ...

Reads from write-only system registers are generally confined to
EL1 and not propagated to EL2 (that's what the architecture
mantates). In order to be sure that we have a sane behaviour
even in the unlikely event that we have a broken system, we still
handle it in KVM. Same goes for write to RO registers.

In that case, let's inject an undef into the guest.

Reviewed-by: Christoffer Dall <cdall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

2017-04-09 07:49:16 -07:00

3.7 KiB

Raw Blame History

View Raw