Re: [Linux-ia64] [PATCH] Performance Patch for TLB misses

David Mosberger
2002-11-07T16:38:08Z

>>>>> On Thu, 07 Nov 2002 15:00:27 +0100, Christian Hildner <christian.hildner@hob.de> said:

Christian> - let the processor also check for privilege level
Christian> because it's very very rare

I didn't look at the patch too closely but this change looks wrong.
It would let user level insert arbitrary identity-mapped TLB
translations, which is not safe because it can trigger memory
attribute aliasing.

--david