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Add support for GICv2 virtualization extensions by mapping the necessary I/O regions and connecting the maintenance IRQ lines. Declare those additions in the device tree and in the ACPI tables. Signed-off-by: Luc Michel <luc.michel@greensocs.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20180727095421.386-21-luc.michel@greensocs.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>