[libvirt] Memory

Hello, Could anybody explain me a little bit what is the difference between <currentMemory> and <maxMemory>. I use qemu-kvm hypervisor*. *When I have 1024MB maxMemory and 512MB of currentMemory, I can see just 512MB in guest os (free -m).* *Is it ok? Does it have something to do with ballooning technique? What happened if guest will needs more memory than 512MB? Thank you for answers :) Kind regards, Jaromír Červenka Official openSUSE community member Web: http://www.cervajz.com/ Jabber: cervajz(a)cervajz.com MSN: jara.cervenka(a)seznam.cz Tel.: +420 607 592 687 Alt. e-mails: jaromir.cervenka(a)opensuse.org, jaromir.cervenka(a)speel.cz