How to add a haradware breakpoint on a physical memory address?

[kipade]

I found some memory was rewrite by gpu module, but i have not found where it layout.
I just use samples hw_breakpoint module for memory monitor.
However, i found it only monitor on a virtual address,
in another words, if two variable point the same physical memory, it can't be detected
if I just monitor on the other variable.


any hints will be very very appreciated.
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