tree a04cc19ffafb2067309337f6dba14032e34da403
parent ad275b8bb1e659b14120174d87e3c1fdc22e9978
author Eric Auger <eric.auger@linaro.org> 1450706682 +0100
committer Christoffer Dall <christoffer.dall@linaro.org> 1463751607 +0200

KVM: arm/arm64: vgic-new: vgic_init: implement map_resources

map_resources is the last initialization step. It is executed on
first VCPU run. At that stage the code checks that userspace has provided
the base addresses for the relevant VGIC regions, which depend on the
type of VGIC that is exposed to the guest.  Also we check if the two
regions overlap.
If the checks succeeded, we register the respective register frames with
the kvm_io_bus framework.

If we emulate a GICv2, the function also forces vgic_init execution if
it has not been executed yet. Also we map the virtual GIC CPU interface
onto the guest's CPU interface.

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