Re: [Xen-devel] Re: NUMA and SMP

[Ryan Harper <ryanh@xxxxxxxxxx>]

* tgh <tianguanhua@xxxxxxxxxx> [2007-03-27 20:51]:
> hi
> xen does not support numa-aware guest linux, is it right?

You can have NUMA enabled in your guest, but Xen does not export
something like a virtual SRAT table that your NUMA-aware guest could use
to determine if its memory and cpu were in two different nodes.

> and there are memory-hotplug.c and migration.c in the linux2.6.20, does 
> it means that linux could support the hotplug memory or not ?

I don't know the current state of memory hotplug in Linux.

> if it could ,does linux have to be numa-aware to support memory hotplug 

I don't believe supporting memory hotplug is related to NUMA.

> or a smp linux could support memory hotplug?

SMP linux isn't related to memory hotplug either.  

-- 
Ryan Harper
Software Engineer; Linux Technology Center
IBM Corp., Austin, Tx
(512) 838-9253   T/L: 678-9253
ryanh@xxxxxxxxxx

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel