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Some SoCs require that RMTFS is also mapped to the NAV VM. Trying to power on the modem without that results in the whole platform crashing and forces a hard reboot within about 2 seconds. Add support for mapping the region to additional VMs, such as NAV to open a path towards enabling modem on such platforms. Signed-off-by: Loic Poulain <loic.poulain@linaro.org> [Konrad: reword, make conditional and flexible, add a define for NAV VMID] Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20230109130523.298971-2-konrad.dybcio@linaro.org