RE: [LSF/MM/BPF TOPIC] BoF VM live migration over CXL memory​

[Shreyas Shah <shreyas.shah@elastics.cloud>]

Hi Dragon,

The concept is great to time share the CXL attached memory across two NUMA nodes for live migration and create a cluster of VMs to increase the compute capacity. 

When and where is the BoF? 


Regards,
Shreyas
 

-----Original Message-----
From: Dragan Stancevic <dragan@stancevic.com> 
Sent: Friday, April 7, 2023 2:06 PM
To: lsf-pc@lists.linux-foundation.org
Cc: nil-migration@lists.linux.dev; linux-cxl@vger.kernel.org; linux-mm@kvack.org
Subject: [LSF/MM/BPF TOPIC] BoF VM live migration over CXL memory​

Hi folks-

if it's not too late for the schedule...

I am starting to tackle VM live migration and hypervisor clustering over switched CXL memory[1][2], intended for cloud virtualization types of loads.

I'd be interested in doing a small BoF session with some slides and get into a discussion/brainstorming with other people that deal with VM/LM cloud loads. Among other things to discuss would be page migrations over switched CXL memory, shared in-memory ABI to allow VM hand-off between hypervisors, etc...

A few of us discussed some of this under the ZONE_XMEM thread, but I figured it might be better to start a separate thread.

If there is interested, thank you.


[1]. High-level overview available at http://nil-migration.org/ [2]. Based on CXL spec 3.0

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