On 5/7/20 10:51 AM, Kees Cook wrote: > On Wed, May 06, 2020 at 05:41:47PM -0700, Anthony Yznaga wrote: >> Avoid regions of memory that contain preserved pages when computing >> slots used to select where to put the decompressed kernel. > This is changing the slot-walking code instead of updating > mem_avoid_overlap() -- that's where the check for a "reserved" memory > area should live. > > For example, this is how both mem_avoid_memmap() and the setup_data > memory areas are handled. > > Is there a reason mem_avoid_overlap() can't be used here? > I was thinking it would be more efficient to process just the regions that did not contain preserved pages rather than checking for preserved pages in mem_avoid_overlap(), but I see that may just be adding unnecessary complexity. I'll investigate modifying mem_avoid_overlap(). Thank you for the comments! Anthony
