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Re: [Xen-devel] [RFC v3 0/6] xen/arm: ARM save/restore/migration support

On 05/12/2014 09:17 AM, Julien Grall wrote:
Hi Wei,

On 05/08/2014 10:18 PM, Wei Huang wrote:
The following patches enable save/restore/migration support for ARM
guest VMs. Note that the original series were sent from Jaeyong Yoo.

    * 32-bit (including SMP) guest VM save/restore/migration
    * 64-bit guest VM save
    * 64-bit guest restore/migration

I though a bit more about this series. I think we miss to save the
layout of the guest (i.e GIC base address, gnttab base address,...) and
some interrupts (i.e timer, evtchn,...)

It's necessary because if we migrate from a older Xen to a new Xen, the
default layout may have change.

Should we make these requirements as phase 2 for save/restore/migration? I think we have enough items to fix in current form. Adding more requirements will make the whole patch set bloated and hard to revise.



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