On Fri, Apr 24, 2015 at 1:04 AM, Linus Torvalds <torva...@linux-foundation.org> wrote: > And at that point,> the only cost is a a single no-op on most CPU's (we still > don't know > _which_ AMD CPU's are affected, but I guess we could start off with > all of them and see if we can get an exhaustive list some way).
This seems to be "architectural" for AMD CPU's, similar to Intel's SYSRET bug with non-canonical return address. Meaning, both bugs, are documented by respective companies. Both are officially "not a bug, but a feature". -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
