Messages in this thread | | | Subject | Re: [PATCH v5 6/6] mtrr, mm, x86: Enhance MTRR checks for KVA huge page mapping | From | Toshi Kani <> | Date | Mon, 18 May 2015 14:21:08 -0600 |
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On Mon, 2015-05-18 at 22:01 +0200, Borislav Petkov wrote: > On Mon, May 18, 2015 at 01:31:59PM -0600, Toshi Kani wrote: > > Well, #2 and #3 are independent. That is, uniform can be set regardless > > Not #2 and #3 above - the original #2 and #3 ones. I've written them out > detailed to show what I mean.
The original #2 and #3 are set independently as well. They do not depend on each other condition being a specific value.
> > The caller is responsible for verifying the conditions that are safe to > > create huge page. > > How is the caller ever going to be able to do anything about it?
The caller is the one who makes the condition checks necessary to create a huge page mapping. mtrr_type_look() only returns how the given range is related with MTRRs.
> Regardless, I'd prefer to not duplicate comments and rather put a short > sentence pointing the reader to the comments over mtrr_type_lookup() > where this all is being explained in detail. > > I'll fix it up.
I appreciate your help.
Thanks, -Toshi
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