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RE: [Xen-ia64-devel] Question: Big Endian domU's

To: "Dietmar Hahn" <dietmar.hahn@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-ia64-devel] Question: Big Endian domU's
From: "Xu, Anthony" <anthony.xu@xxxxxxxxx>
Date: Fri, 3 Nov 2006 10:22:25 +0800
Cc: xen-ia64-devel <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
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Thread-topic: [Xen-ia64-devel] Question: Big Endian domU's
Dietmar, 

>I would like to see Xen support for big endian OS's.

What is the OS using big endian?

>This caused my question. It seems, nothing is tought in that direction?
It may not be that easy for supporting big endian.
XEN may need to access address space which belonging to guest OS,
So XEN need to take care of big endian.
Because Linux and Windows are using little endian, we don't take big endian 
into consideration from beginning.
There are many places we need to change for supporting big endian OS.

But, if you can describe your scenario in depth, Maybe we can increase the 
priority of supporting big endian OS.

Anthony


>-----Original Message-----
>From: Dietmar Hahn [mailto:dietmar.hahn@xxxxxxxxxxxxxxxxxxx] 
>Sent: 2006年11月2日 18:56
>To: Xu, Anthony
>Cc: xen-ia64-devel
>Subject: Re: [Xen-ia64-devel] Question: Big Endian domU's
>
>Hi Anthony,
>
>thank you for your answer.
>
>Am Dienstag, 31. Oktober 2006 02:41 schrieb Xu, Anthony:
>> Hi Dietmar,
>> 
>> In VTI/IA64 side, application can use big endian mode,
>> But It doesn't support  OS that using big endian mode.
>> 
>> What's your usage mode about big endian?
>> 
>I would like to see Xen support for big endian OS's.
>This caused my question. It seems, nothing is tought in that direction?
>Thanks.
>
>Dietmar.
>
>> 
>> Thanks,
>> Anthony
>> 
>> >-----Original Message-----
>> >From: xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx 
>> >[mailto:xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf 
>> >Of Dietmar Hahn
>> >Sent: 2006年10月30日 16:56
>> >To: xen-ia64-devel
>> >Subject: [Xen-ia64-devel] Question: Big Endian domU's
>> >
>> >Hi,
>> >
>> >while reading the Xen on IA64 status - presentation from Alex 
>> >Williamson on
>> >last xen summit I saw the big endian support as one ot the 
>> >discussion topics.
>> >I would like to know if there are some results/thoughts about 
>> >the big endian
>> >support.
>> >Thanks.
>> >
>> >Dietmar.
>> >
>> >_______________________________________________
>> >Xen-ia64-devel mailing list
>> >Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
>> >http://lists.xensource.com/xen-ia64-devel
>> >
>> 
>> 
>

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