I posted a summary of how pc-dimm, memory-backend, MemoryRegion, and
RAMBlock play together to represent guest RAM:
http://blog.vmsplice.net/2016/01/qemu-internals-how-guest-physical-ram.html
Hope this is useful to anyone trying to understand the internals of
QEMU. I've copied the full text
On 08/01/2016 10:29, Stefan Hajnoczi wrote:
> As a side-note, the initial RAM that the guest started with might not
> be modelled with a "pc-dimm" device and it can't be unplugged.
>
> The guest RAM itself isn't contained inside the "pc-dimm" object.
> Instead the "pc-dimm" must be associated
