On Wed, Feb 23, 2022 at 2:12 PM Jason A. Donenfeld <Jason@xxxxxxxxx> wrote: > second patch is the reason this is just an RFC: it's a cleanup of the > ACPI driver from last year, and I don't really have much experience > writing, testing, debugging, or maintaining these types of drivers. > Ideally this thread would yield somebody saying, "I see the intent of > this; I'm happy to take over ownership of this part." That way, I can > focus on the RNG part, and whoever steps up for the paravirt ACPI part > can focus on that. I actually managed to test this in QEMU, and it seems to work quite well. Steps: $ qemu-system-x86_64 ... -device vmgenid,guid=auto -monitor stdio (qemu) savevm blah (qemu) quit $ qemu-system-x86_64 ... -device vmgenid,guid=auto -monitor stdio (qemu) loadvm blah Doing this successfully triggers the function to reinitialize the RNG with the new GUID. (It appears there's a bug in QEMU which prevents the GUID from being reinitialized when running `loadvm` without quitting first; I suppose this should be discussed with QEMU upstream.) So that's very positive. But I would appreciate hearing from some ACPI/Virt/Amazon people about this. Jason
