A Novel Scheduling Framework Leveraging Hardware Cache Partitioning for Cache-Side-Channel Elimination in Clouds — mentioned by ithkuil

Fri, 12 Jan 2018 08:55:51 GMT

yes, I meant that to suffer from spectre you just need a shared cache; it's not necessary to share address space. It follows from what a cache is. You have a large set of numbers (memory addresses) mapping into a smaller set of numbers (cache lines); my necessity there will be a collision. The mapping is deterministic and you can recover information by looking at these clashes. Some intel high end CPUs have a feature called CAT which was designed to avoid that different workloads interfere too much by stomping on each other's cache lines, but I think it's meant mostly as a performance feature…

Paper and discussion history. A mention is not an endorsement.

A Novel Scheduling Framework Leveraging Hardware Cache Partitioning for Cache-Side-Channel Elimination in Clouds · HackerPapers discussions

A Novel Scheduling Framework Leveraging Hardware Cache Partitioning for Cache-Side-Channel Elimination in Clouds — mentioned by ithkuil