On Wed, 2006-06-07 at 09:05 -0600, Alex Williamson wrote:
> Hi Kouya,
>
> Yes, I do too. Does the PRIMEQUEST have a memmap command from the
> EFI shell that reports the original MDT as reported by firmware? I
> notice this range reports both WB and UC attributes. I wonder if the
> zero size is a result of the efi trim_top/trim_bottom calls zero-ing out
> that range to prevent attribute aliasing. On my system the ACPI reclaim
> memory is only reported with the UC attribute and therefore does not get
> trimmed. If this is the case, the solution might be to have the
> trimming functions remove the WB attribute instead of reducing the range
> to zero. I'd certainly prefer to add that kind of special case than to
> walk the ACPI tables by hand. Thanks,
Hi Kouya,
Here's a patch that will remove the WB attribute instead of trimming
ranges that support both WB & UC. It's untested, but let me know if
this solves the problem on PRIMEQUEST. Thanks,
Alex
--
Alex Williamson HP Open Source & Linux Org.
no_trim_uc.patch
Description: Text Data
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