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The boston machine doesn't set MachineState::fdt to the DTB blob that it has loaded or created, which means that the QMP/HMP dumpdtb monitor commands don't work. Setting MachineState::fdt is easy in the non-FIT codepath: we can simply do so immediately before loading the DTB into guest memory. The FIT codepath is a bit more awkward as currently the FIT loader throws away the memory that the FDT was in after it loads it into guest memory. So we add a void *pfdt argument to load_fit() for it to store the FDT pointer into. There is some readjustment required of the pointer handling in loader-fit.c, so that it applies 'const' only where it should (e.g. the data pointer we get back from fdt_getprop() is const, because it's into the middle of the input FDT data, but the pointer that fit_load_image_alloc() should not be const, because it's freshly allocated memory that the caller can change if it likes). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20250206151214.2947842-5-peter.maydell@linaro.org