Re: [Xen-devel] SMBIOS UUID

[Dejan Markic <d@xxxxxxxx>]

Hello Andrew,

firstly, thank you for your answer. We have some software being moved 
from physical machines to virtual machines and we need to maintain those 
UUID's. I've been able to change the hvmloader to staticly change the 
UUID. It seems that xenstore uses fixed database scheme, so I guess I 
would first have to request a change in that scheme to also make it 
possible to specify product-uuid or similar in bios-strings and than it 
would be fairly trivial to use xenstore_* functions to get this and use 
it if specified.
If I understand this correctly, xenstore is under XAPI development? I 
can also provide the patch fro hvmloader to use this new xenstore 
propery in bios-strings.
It's fairly easy to change this in vmWare or HyperV.

Thank you and kind regards,
Dejan

On 15.12.2016 17:07, Andrew Cooper wrote:
> On 12/12/16 19:05, Dejan Markic wrote:
> > Hello all,
> >
> > sorry, as this might be a stupid question for some of you, but I
> > wonder why here:
> >
> > https://github.com/mirage/xen/blob/master/tools/firmware/hvmloader/smbios.c#L438
> >
> >
> > You allow almost everything to be overwritten in SMBIOS type 1 table
> > except the UUID.
> Probably only because whomever implemented the code didn't need to do that.
>
> > Would there be any problems if UUID was also picked up from xenstore
> > with, for instance, HVM_XS_SYSTEM_UUID?
> The UUID is currently picked up from the domain's UUID stored in Xen, so
> is currently under toolstack control.
>
> I don't see a particular problem with being able to specify it via
> xenstore.  What is your usecase here?
>
> ~Andrew

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel