On Wed, Oct 17, 2007 at 10:03:14AM -0600, Alex Williamson wrote:
> Hi everyone,
>
> The next Xen Summit is quickly approaching, so I thought it would be
> a good time to start a thread on what our roadmap looks like for 3.2 and
> beyond. To get started, here's a quick list of things that are in
> progress, I've heard of, and random ideas.
>
> * Kexec/Kdump
> * HVM domain save/restore
> * eepro100 Qemu driver
> * Support for more HVM guest OS varieties
> * Better NUMA support
> * HVM domain migration
> * VT-d support
> * Windows VGA modes w/ open GFW (works better w/ Intel GFW)
> * GFW serial console support
> * Increasing Xenheap (for sparse memory & increased vcpu limits)
> * Increasing Xen page size (discussed a little at OLS)
What motivates this? I don't know the discussion.
I'm guessing the reason behind it.
- catching up linux deafult page size chage
- removing current pseudo physical addrese size limit
Why not moving from 3 level p2m table to 4 level p2m table?
anyother reason?
> * Remove hard limit on number of domains
> * Removing number of vCPUs limit (maybe xenheap size related)
> * Virtualized processor modules
> * Improved performance & stability
> * Merge with upstream Linux
>
> This is by no means a complete list, so please comment and add items
> that you feel are missing. A number of these also don't have owners,
> they're just brainstorming ideas. I look forward to comments and
> additions to the above. Hopefully this can spark some discussion that
> can be continued at the summit. Thanks,
Some random ideas. I hope they will help starting discussions.
* NUMA emu (something like Linux x86_64 NUMA_EMU)
This would be convenient for developing NUMA support on
non-NUMA box.
* scalability
While some hard limit is there as Alex already mentioned,
Does the current implementation of other part scale as we want?
If no, which subsystem to rewrite?
* debugging tools for xen vmm itself/tools stack/guest OS
Currently we have Kexec/Kdump, xm dump-core, xenitp, and
misc tools. Do we want any others?
e.g. nested Xen or something like Linux 'crash /dev/kcore',
Linux LTT, systemtap...
* fast hypercall using gate page
* super page/hugetlbfs support
* PMU virtualization
* performance isolation
thanks,
--
yamahata
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