Eric Auger c2385eaa6c KVM: arm/arm64: vgic-its: Check GITS_BASER Valid bit before saving tables ...

At the moment we don't properly check the GITS_BASER<n>.Valid
bit before saving the collection and device tables.

On vgic_its_save_collection_table() we use the GITS_BASER gpa
field whereas the Valid bit should be used.

On vgic_its_save_device_tables() there is no check. This can
cause various bugs, among which a subsequent fault when accessing
the table in guest memory.

Let's systematically check the Valid bit before doing anything.

We also uniformize the code between save and restore.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>

2017-10-29 03:25:06 +01:00

..

kvm

KVM: arm/arm64: vgic-its: Check GITS_BASER Valid bit before saving tables

2017-10-29 03:25:06 +01:00

lib

KVM: eventfd: fix NULL deref irqbypass consumer

2017-01-12 14:42:34 +01:00

Makefile

virt: Add virt directory to the top Makefile

2015-10-01 15:06:44 +02:00