Re: [Qemu-devel] [PATCH v5 05/14] vl: handle "-device dimm"

[Paolo Bonzini]

Il 15/07/2013 19:05, Vasilis Liaskovitis ha scritto:
> from what i understand, we are currently favoring this numa option? (I saw it
> mentioned in Gao's numa patchset series as well)

The two patchsets have some overlap, so it's good to find a design that
fits both.

> There is still the question of "how many hotpluggable dimm devices does this
> memory range describe?". With the dimm device that was clearly defined, but 
> not
> so with this option. Do we choose a default granularity e.g. 1 GB?

I think it's the same.  One "-numa mem" option = one "-device dimm"
option; both define one range.  Unused memory ranges may remain if you
stumble upon a unusable range such as the PCI window.  For example two
"-numa mem,size=2G" options would allocate memory from 0 to 2G and from
4 to 6G.

I'm snipping the rest of the email because I hope this covers all your
doubts.

Paolo