Re: [Qemu-devel] Add an IPMI device to qemu

[Corey Minyard]

On 04/22/2015 07:25 PM, Noel Burton-Krahn wrote:
> OK, I've build qemu and openipmi.  I'm simulating a system where a
> central control node boots from USB, then uses IPMI to boot a cluster
> of slave nodes and provisions them by tftpboot.  If I understand
> correctly, I'll be running one ipmi_sim per slave node, and my control
> node will tell that to boot a qemu instance for each slave.  Sounds
> good so far?

Yes, that is correct.

>
> The sample lan.conf has two sections started by set_working_mc 0x20
> and set_working_mc 0x30.  Is that for configuring multiple ipmi
> simulators in a single config file?
>

That is just for testing, really.  IPMI supports configurations with
multiple management controllers, say if you put a management controller
in a power supply that just managed that device.

However, you should be able to manage multiple VMs from a single IPMI
simulator.  Create an MC for each VM and set it up, and send the chassis
management commands to the individual MC.  You can use the "-t" option
of ipmitool to set the particular MC you are addressing.

-corey

-corey