On Sun, Jun 09, 2013 at 01:26:21PM +0800, yue-kvm wrote: > 1. how could i know how many devices qemu support and hardware topology of > all of them? > > 2.the quantitativerestriction of guest's devices. vcpu,disk,ethernet,memory?
Some resources are limited by the bus (e.g. PCI slots). The details depend on the machine type because the emulated busses are different. Other resources may be limited on guest factors like firmware tables or device tree. Others may be limited only by host hardware resources. Your question is very broad and you need to look into specifics to find the answers. If you want a quick solution, I suggest looking at vendor documentation - for example, look what distros shipping KVM say about x86 guest limits. Stefan
