Messages in this thread | | | Date | Thu, 15 Mar 2012 07:47:57 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] EFI: Only set regions uncacheable if they support it |
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On 03/15/2012 07:42 AM, Matthew Garrett wrote: > On Thu, Mar 15, 2012 at 07:36:46AM -0700, H. Peter Anvin wrote: > >> I would still really like to understand why we're seeing #MCs... that's >> bothersome all by itself. > > The region is the legacy video RAM, so I can imagine there being > something magic about it. >
WTF?! That should be UC at all times... it isn't even WC-capable. Furthermore, we may need this region (assuming there is actually a video card there.)
What do the fixed MTRRs look like?
-hpa
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