Re: [Xen-ia64-devel] [PATCH] VP model doesn't pass the whole ACPI table to dom0

[Alex Williamson <alex.williamson@xxxxxx>]

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.

Attachment: no_trim_uc.patch
Description: Text Data

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