[Qemu-devel] help me with qemu-img theory(snapshot and backing file)

[yue-kvm]

hi,all

if there any documents about snapshot and backing file's  theory.

as we know vmware has composor which can upgrade images(top of backing chain ) by upgrading backing file

 

so i think we can implement it anyway.

 

now i need some infomations  relevant to my idea.

and hope qemu-img developer guys can work together with me to finish this feature.

 

thanks.