Hi, Fred, Dan and all
We Fujitsu,in cooperation with VA Linux systems Japan,
are looking into PMT support.
We've just done the basic research and will start discussing
our design soon.
We are interested in supporting IPF/Xen on our IPF big iron
(PRIMEQUEST); we've successfully booted IPF/Xen on this server
(well, actually, just Dom0 yet).
Currently, we are in a sort of learning process, but once we've
got more comfortable with IPF/Xen, I hope we can contribute to
IPF/Xen in a bigger way, especially in the area of stability/RAS.
Thanks,
Yoshi Oguchi
>2. PMT table support for Domain0 - This is also the effort must happen
>to get to Xen/ia32 similar functionality and remove each extra upstream
>merge to make ia64 implementation more aligned to Xen, directly
>contribute to VBD/VNIC. Some community member must already looking into
>this effort now. Please see previous discussion
>http://lists.xensource.com/archives/html/xen-ia64-devel/2005-11/msg00022
>.html
--
Yang, Fred wrote:
>Following 2 items should be there for next stages to work forward
>
>1. Enable complete VHPT solution, with option of either global or pev-VP
>VHPT choice, for system - this is the effort we are now working toward.
>This is a must for the next stage SMP effort. Please see the previous
>discussion thread
>http://lists.xensource.com/archives/html/xen-ia64-devel/2005-05/msg00034
>.html
>
>2. PMT table support for Domain0 - This is also the effort must happen
>to get to Xen/ia32 similar functionality and remove each extra upstream
>merge to make ia64 implementation more aligned to Xen, directly
>contribute to VBD/VNIC. Some community member must already looking into
>this effort now. Please see previous discussion
>http://lists.xensource.com/archives/html/xen-ia64-devel/2005-11/msg00022
>.html
>
>-Fred
>
>Magenheimer, Dan (HP Labs Fort Collins) wrote:
>> There have been a number of solid contributions by many people
>> to get Xen/ia64 to where it is today. You should all be very proud!
>>
>> I believe the next phase of Xen/ia64 development will need
>> to be focused on the end user of Xen/ia64. What can we do
>> to put a useful Xen/ia64 into the hands of Itanium system
>> owners who want the functionality of Xen, but who are not
>> interested in development or tracking the latest upstream
>> changes?
>>
>> The top areas of development might be:
>>
>> 1) Stable domU. As some have noticed, domU is currently capable
>> of getting to a single-user shell prompt and executing simple
>> commands but, if it is exercised much, various programs crash
>> possibly killing the guest, and in some cases even killing dom0.
>> This is unacceptable for a "normal user". There are probably
>> a few bugs in the virtual drivers and hypervisor, but these
>> may be difficult to track down. We developers need to work
>> together to identify reproducible test cases to help isolate
>> and fix them.
>> 2) Networking. A system without networking has little value to
>> a real user. Most of the netback/netfront code should be fully
>> leveragable. We need only identify the few changes necessary
>> to adapt to ia64 differences. The patch I posted earlier
>> this week should help us to move in the right direction.
>> 3) A good regression test environment. Many of the bugs we
>> are fixing are subtle corner cases which occur very rarely.
>> When fixing these, it is very possible that another bug
>> will be introduced that only occurs in another subtle
>> corner case. We need to ensure that we continue forward
>> progress.
>>
>> Once domU is usable to run real applications and networking is
>> working and stable, I think the next steps are:
>>
>> 4) SMP guest support
>> 5) Migration support
>> 6) Performance tuning
>>
>> but these will be difficult (and ultimately futile) to work on
>> without the stability and networking.
>>
>> Comments?
>>
>> Dan
>>
>> _______________________________________________
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>
>
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