Re: [PATCH V2 2/3] powerpc: Poll VPA for topology changes and update NUMA maps

2010-12-01 Thread Jesse Larrew
On 11/28/2010 10:44 PM, Benjamin Herrenschmidt wrote: On Tue, 2010-11-09 at 16:25 -0700, Jesse Larrew wrote: From: Jesse Larrew jlar...@linux.vnet.ibm.com This patch sets a timer during boot that will periodically poll the associativity change counters in the VPA. When a change in

Re: [PATCH V2 2/3] powerpc: Poll VPA for topology changes and update NUMA maps

2010-12-01 Thread Benjamin Herrenschmidt
On Wed, 2010-12-01 at 16:50 -0500, Jesse Larrew wrote: Hmmm... Good point. That would eliminate a lot of complexity, and if we wrap the code in the timer interrupt so that it only executes on systems with the VPHN feature, then partition migration pretty much takes care of itself as well. :)

Re: [PATCH V2 2/3] powerpc: Poll VPA for topology changes and update NUMA maps

2010-11-28 Thread Benjamin Herrenschmidt
On Tue, 2010-11-09 at 16:25 -0700, Jesse Larrew wrote: From: Jesse Larrew jlar...@linux.vnet.ibm.com This patch sets a timer during boot that will periodically poll the associativity change counters in the VPA. When a change in associativity is detected, it retrieves the new associativity

[PATCH V2 2/3] powerpc: Poll VPA for topology changes and update NUMA maps

2010-11-09 Thread Jesse Larrew
From: Jesse Larrew jlar...@linux.vnet.ibm.com This patch sets a timer during boot that will periodically poll the associativity change counters in the VPA. When a change in associativity is detected, it retrieves the new associativity domain information via the H_HOME_NODE_ASSOCIATIVITY hcall