On 7/29/22 14:46, Pawan Gupta wrote: > Let me see if there is a way to distinguish between 4. and 5. below: > > CPU category X86_BUG_MMIO_STALE_DATA X86_BUG_MMIO_UNKNOWN > ----------------------------------------------------------------------------------------------- > 1. Known affected (in cpu list) 1 0 > 2. CPUs with HW immunity (MMIO_NO=1) 0 0 > 3. Other vendors 0 0 > 4. Older Intel CPUs 0 1 > 5. Not affected current CPUs (but MMIO_NO=0) 0 ? This seems like something we would need to go back to our colleagues to figure out. Basically, at the time of publishing the X86_BUG_MMIO_STALE_DATA papers, what was considered "older"? In other words, we need the folks at Intel that did this good work to _show_ their work (at least part of it).
