On Mon, Nov 09, 2015 at 05:47:17PM +1100, Alexey Kardashevskiy wrote: > Section B.6.2.1 Root Node Properties of PAPR specification defines > a set of properties which shall be present in the device tree root, > one of these properties is "system-id" which "should be unique across > all systems and all manufacturers". Since UUID is meant to be unique, > it makes sense to use it as "system-id". > > This adds "system-id" property to the device tree root when not empty. > > Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru> > --- > > This might be expected by AIX so here is the patch. > I am really not sure if it makes sense to initialize property when > UUID is all zeroes as the requirement is "unique" and zero-uuid is > not.
Yeah, I think it would be better to omit system-id entirely when a
UUID hasn't been supplied.
>
> ---
> hw/ppc/spapr.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index de77528..e8b407d 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -374,6 +374,9 @@ static void *spapr_create_fdt_skel(hwaddr initrd_base,
> qemu_uuid[14], qemu_uuid[15]);
>
> _FDT((fdt_property_string(fdt, "vm,uuid", buf)));
> + if (qemu_uuid_set) {
> + _FDT((fdt_property_string(fdt, "system-id", buf)));
> + }
> g_free(buf);
>
> if (qemu_get_vm_name()) {
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
signature.asc
Description: PGP signature
