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The GICv4 extends the redistributor register map -- where GICv3 had two 64KB frames per CPU, GICv4 has four frames. Add support for the extra frame by using a new gicv3_redist_size() function in the places in the GIC implementation which currently use a fixed constant size for the redistributor register block. (Until we implement the extra registers they will RAZ/WI.) Any board that wants to use a GICv4 will need to also adjust to handle the different sized redistributor register block; that will be done separately. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220408141550.1271295-23-peter.maydell@linaro.org