Santosh Sivaraj's on July 6, 2019 7:26 am:
> From: Balbir Singh
>
> The code currently assumes PAGE_SHIFT as the shift value of
> the pfn,
This comment doesn't really make sense on its own. Linux pfns
are always units of page shift, so if it's not that then it's
not a pfn.
I think you want the
From: Balbir Singh
The code currently assumes PAGE_SHIFT as the shift value of
the pfn, this works correctly (mostly) for user space pages,
but the correct thing to do is
1. Extract the shift value returned via the pte-walk API's
2. Use the shift value to access the instruction address.
Note,
