Re: [Xen-ia64-devel] [Patch] cleanup warning of UC|WB attributepage

[Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>]

Hi, Alex

>On Tue, 2007-05-08 at 09:58 +0900, Akio Takebe wrote:
>> 
>> BTW, I also thought another approch to prevent these case.
>> Because these memory area is accessed as both UC and WB,
>> we need to use new flag. 
>> (For example _PAGE_MA_UCE, I'm not sure we can use this flag for UC|WB.
>> or should we make new flag?)
>> 
>> In consideration of stability, I didn't make new flag.
>> (Because I must check many part of memory access.)
>> Which approch do you prefer? or another suggestion?
>
>   That does sound rather involved.  Unless others think the UCE page is
>a better way to go, perhaps we should use something like the approach
>you're suggesting.  Newer upstream efi.c has a efi_mem_attribute()
>function that will give you the attributes for a given range of memory.
>Rather than implementing yet another EFI memmap walking routine, what do
>you think about updating efi.c to a newer upstream version and making
>use of this function?  Thanks,
Thank you for your comments.

I'll check whether It is possible easy to port new efi.c to xen. 

Best Regards,

Akio Takebe


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