Re: [PATCH 1/1] vmgenid: emit uevent when VMGENID updates

[Alexander Graf]

On 31.05.23 11:51, Babis Chalios wrote:
> We receive an ACPI notification every time the VM Generation ID changes
> and use the new ID as fresh randomness added to the entropy pool. This
> commits emits a uevent every time we receive the ACPI notification, as a
> means to notify the user space that it now is in a new VM.
>
> Signed-off-by: Babis Chalios <bchalios@xxxxxxxxx>


Thanks Babis! Super simple, yet very effective way to notify system 
software that it may need to adopt to a new environment. I know that the 
systemd folks are super interested in that to for example regenerate 
randomly generated MAC addresses after a clone operation.


Reviewed-by: Alexander Graf <graf@xxxxxxxxxx>


Alex





Amazon Development Center Germany GmbH
Krausenstr. 38
10117 Berlin
Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss
Eingetragen am Amtsgericht Charlottenburg unter HRB 149173 B
Sitz: Berlin
Ust-ID: DE 289 237 879