How to dump huawei honor view 10 bootloader from phone memory

The Huawei Honor View 10 bootloader is loaded in 0x16800000 in it's memory during boot by xloader

so we can dump the memory to local pc using fastboot command:

fastboot oem memupload 0x16800000 0x20000 fastboot.mem.bin

then we can load it in ida pro to reverse analyses it.