[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH v5 05/14] vl: handle "-device dimm"
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH v5 05/14] vl: handle "-device dimm" |
Date: |
Tue, 16 Jul 2013 08:19:48 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7 |
Il 16/07/2013 03:27, Hu Tao ha scritto:
> > 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.
>
> So we can drop -dimm if we agree on -numa mem?
Yes, the point of the "-numa mem" proposal was to avoid the concept of a
"partially initialized device" that you had for DIMMs.
BTW, how do you specify which module you are plugging in? I.e., what if
I have three 1G ranges at 0, 1G and 2G, and I want to plug the first and
the third?
This is especially important with hot-unplug, because then you can have
this kind of hole in the address space. If you migrate the VM, you have
to reproduce the situation in the destination command line.
Paolo
- Re: [Qemu-devel] [PATCH v5 05/14] vl: handle "-device dimm", Igor Mammedov, 2013/07/09
- Re: [Qemu-devel] [PATCH v5 05/14] vl: handle "-device dimm", Vasilis Liaskovitis, 2013/07/15
- Re: [Qemu-devel] [PATCH v5 05/14] vl: handle "-device dimm", Paolo Bonzini, 2013/07/15
- Re: [Qemu-devel] [PATCH v5 05/14] vl: handle "-device dimm", Igor Mammedov, 2013/07/16
- Re: [Qemu-devel] [PATCH v5 05/14] vl: handle "-device dimm", Paolo Bonzini, 2013/07/16
- Re: [Qemu-devel] [PATCH v5 05/14] vl: handle "-device dimm", Igor Mammedov, 2013/07/16
- Re: [Qemu-devel] [PATCH v5 05/14] vl: handle "-device dimm", Paolo Bonzini, 2013/07/16