Messages in this thread | | | Date | Tue, 6 Feb 2007 17:16:24 +0100 | From | "Andreas Herrmann" <> | Subject | Re: [discuss] [patch] mtrr: fix issues with large addresses |
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On Tue, Feb 06, 2007 at 09:31:45AM +0000, Jan Beulich wrote: > >>> Andi Kleen <ak@suse.de> 06.02.07 08:53 >>> > >On Monday 05 February 2007 23:50, Siddha, Suresh B wrote: > >> On Mon, Feb 05, 2007 at 06:19:59PM +0100, Andreas Herrmann wrote: > >> > o added check to restrict base address to 36 bit on i386 > >> > >> Why is this? It can go upto implemented physical bits, right? > > > >In theory it can, but Linux doesn't support it. > > I don't think I remember a restriction here, at least not below 44 bits > (that's where pfn-s would need to become 64-bit wide). > > Jan >
Hi all,
shame on me. Wanted to fix and interface issue where base address is truncated at 44 bit in mtrr_write().
(And just thought 36 bit would be more than enough for that 32 bit Linux version :)
Regards,
Andreas
-- AMD Saxony, Dresden, Germany Operating System Research Center
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