On Wed, Jul 09, 2025 at 10:32:16PM -0700, dan.j.williams@xxxxxxxxx wrote: > Theoretically there could be a threshold at which a CLFLUSHOPT loop is a > better option, but I would rather it be the case* that software CXL > cache management is stop-gap for early generation CXL platforms. So isn't the problem that CLFLUSH and friends take a linear address rather than a physical address? I suppose we can use our 1:1 mapping in this case, is all of CXL in the 1:1 map?
