Messages in this thread | | | Date | Tue, 29 May 2012 10:10:49 -0400 | From | Konrad Rzeszutek Wilk <> | Subject | Re: [PATCH 03/35] xen: document Xen is using an unused bit for the pagetables |
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On Sat, May 26, 2012 at 05:59:12PM +0200, Andrea Arcangeli wrote: > Hi Konrad, > > On Fri, May 25, 2012 at 04:26:56PM -0400, Konrad Rzeszutek Wilk wrote: > > On Fri, May 25, 2012 at 07:02:07PM +0200, Andrea Arcangeli wrote: > > > Xen has taken over the last reserved bit available for the pagetables > > > which is set through ioremap, this documents it and makes the code > > > more readable. > > > > Andrea, my previous respone had a question about this - was wondering > > if you had a chance to look at that in your busy schedule and provide > > some advice on how to remove the _PAGE_IOMAP altogether? > > I read you response but I didn't look into the P2M tree and > xen_val_pte code yet sorry. Thanks for looking into this, if it's > possible to remove it without downsides, it would be a nice
Yeah, I am not really thrilled about it.
> cleanup. It's not urgent though, we're not running out of reserved > pte bits yet :).
Oh, your git comment says "the last reserved bit". Let me look through all your patches to see how the AutoNUMA code works - I am probably just missing something simple.
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