On 6/23/21 5:53 PM, Jason Thorpe wrote:
Thanks for the pointer!  Yes, it seems like that might be similar to what I need... 
create new address spaces (rather than using the "system" address space) for 
the PCI memory and I/O regions (I need to do this for PCI configuration space, too, 
FWIW...), then in my sparse ops handlers, decode the bus address and size, and then call 
address_space_{read,write}().  Have I got the gist of it?

Yep.  That bitband device is a good example.


r~

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