Andrew Kaster bc50a10cc9 Kernel: sys$mprotect protects sub-regions as well as whole ones ...

Split a region into two/three if the desired mprotect range is a strict
subset of an existing region. We can then set the access bits on a new
region that is just our desired range and add both the new
desired subregion and the leftovers back to our page tables.

2020-01-02 12:27:13 +01:00

120 KiB

Raw Blame History

View Raw