On Tue, Aug 16, 2022 at 10:42:03AM -0700, Dan Williams wrote: > I also think this cache_flush_region() API wants a prominent comment > clarifying the limited applicability of this API. I.e. that it is not > for general purpose usage, not for VMs, and only for select bare metal > scenarios that instantaneously invalidate wide swaths of memory. > Otherwise, I can now see how this looks like a potentially scary > expansion of the usage of wbinvd. This; because adding a generic API like this makes it ripe for usage. And this is absolutely the very last thing we want used.
