[libvirt] [RFC] UEFI and NVRAM store file format

[Nikolay Shirokovskiy]

Hi, all.                                                                                                               

There is old patch series [1] to add file format to UEFI and NVRAM. It is not
merged because I guess it is intended to be used with online internal snapshot                                         
and such snapshot have issues with nvram. First it can save VM state in nvram
image. Second nvram is saved as part of VM state so one doesn't need to make                                        
nvram image snapshot as QEMU does. This is explained in greater details in [2].                                        

But offline internal snapshots and disk only snapshots makes sense. So what                                            
about finally take the patch series.                                                                                   

[1] [PATCH v2 0/4] UEFI and NVRAM store file format
https://www.redhat.com/archives/libvir-list/2015-January/msg00444.html                                                 

[2] discussion of internal snapshot support for VMs with nvram                                                         
https://bugzilla.redhat.com/show_bug.cgi?id=1180955#c7                                                                 

Nikolay