hi Vijay,

My guess is as follow:
#1: MmMapIoSpace() = IO Device Register --> Virutal Address.
#2: Within this process = IO Device Register (bus specific Address) -->
Physical (System Wide) 32bit address --> Virtual Address.
#3: Input argument 'PHYSICAL_ADDRESS' for MmMapIoSpace should be translated
is not identifiable without further decoding (by HW?)

Actually i am interested in this question too........


"Vijay" wrote: