a memory unit (amount[KMG]). See also
Documentation/kdump/kdump.txt for an example.
+ cros_shared_mem=[ARM]
+ Format: <hex integer>
+ Base address of the ChromeOS shared memory window,
+ aligned at megabyte boundary, window size is fixed at
+ 1 megabyte.
+
cs89x0_dma= [HW,NET]
Format: <dma>