Messages in this thread | | | Date | Fri, 09 Apr 2010 15:44:43 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] x86: Reserve legacy VGA MMIO area for x86_64 as well as x86_32 |
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On 04/09/2010 03:35 PM, Andy Isaacson wrote: > [ 2.267740] pci 0000:00:1f.2: BAR 5: assigned [mem 0x000a0000-0x000a07ff] > [ 2.274701] pci 0000:00:1f.2: BAR 5: set to [mem 0x000a0000-0x000a07ff] (PCI address [0xa0000-0xa07ff]
Looks like this is something the kernel is assigning to it. It *does* get marked reserved:
> [ 0.000000] #6 [000009ec00 - 00000f0000] BIOS reserved
... but that doesn't seem to keep the PCI code from assigning anything there. This is a Very Bad thing in general... if we're assigning devices to areas marked reserved, we have a huge problem.
-hpa
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