Re: [Engine-devel] Stable Device Addresses HLD/LLD for tomorrow meeting (15:00 GMT+1)

On 01/04/2012 03:46 AM, Itamar Heim wrote: >Dor/Alon - a question below. >more comments inline. > >On 01/03/2012 11:16 PM, Eli Mesika wrote: >>>From: "Itamar Heim"<iheim(a)redhat.com> >... > >>>Subject: Re: [Engine-devel] Stable Device Addresses HLD/LLD for >>>tomorrow meeting (15:00 GMT+1) >>> >>>On 12/28/2011 06:52 PM, Eli Mesika wrote: >>>>High level design : >>>>http://www.ovirt.org/wiki/Features/Design/StableDeviceAddresses >>>> >>>>Low level design : >>>>http://www.ovirt.org/wiki/Features/Design/DetailedStableDeviceAddresses >>>>(probably will be modified until the meeting) >... > >>>4. video cards >>>you mention only spice - what happens to VNC monitors? >>Handled already, look on HLD for >>'qxl' - spice device, 'cirrus' - vnc device > >iirc, there is supposed to be something around being able to use both >vnc or spice (mutually exclusive) without rebooting the guest. >i.e., user would be able to connect with either one of these protocols >Dor/Alon? There is a way to do that and it may be desirable on some situations. (why it is related to stable device addresses?)

> > >another item (shouldn't affect design i hope, but just in case): >I just heard spice multi monitor support for linux guests may work >differently than for windows. >in windows we expose 4 video cards. >for linux we may need to create one card with 4 times the memory. While I don't know if that's possible, what's the relation to stable pci addresses? ovirt just need to support all mode and allow configurable number of pci cards, stable pci slots, multi-function devices and specify the amount of ram or any other properties specific devices will need. > >... >>> >>>6. virtio-serial >>>you mention it in the beginning, but not afterwards wrt >>>implementation >>>details. there may be multiple of these (qemu-ga, ovirt-guest-agent, >>>spice-vd-agent?) >> >>I think those will be handled as (un-managed) vm-device abd by >>definition can have multiple entries > >but having/not having spice configured would affect the need for one of >them (spice-vd-agent) >and cluster compatibility would affect the need for the qemu-ga one (not >sure if that would be configurable or assumed as default for all guests)