[Qemu-devel] cpu_register_physical_memory_offset()

[依峰听海]

i am confused about the function cpu_register_physical_memory_offset().

      in this function, cpu register a segment of GPA to RAM or to a device.  Now, i want to write two new function ,one is cpu_register_physical_memory_offset_to_RAM()  and the other is cpu_register_physical_memory_offset_to_device(),in the first function, i divide the memory  into pages,and creat a description for each page.Hower, i am confuse about the 2nd function.

 

    maybe, we i should think about the subpage init and subpage register.

 

    would you give me some advice?