On Tue Mar 12, 2024 at 4:56 AM AEST, Daniel P. Berrangé wrote: > On Mon, Mar 11, 2024 at 06:46:53PM +0100, Philippe Mathieu-Daudé wrote: > > Hi, > > > > On 14/12/23 19:17, Cédric Le Goater wrote: > > > pseries machines before version 2.11 have undergone many changes to > > > correct issues, mostly regarding migration compatibility. This is > > > obfuscating the code uselessly and makes maintenance more difficult. > > > Remove them and only keep the last version of the 2.x series, 2.12, > > > still in use by old distros. > > > > By the time we get to QEMU v9.2, will pseries-2.12 still be used > > by old distros? (which ones btw?) > > That's the wrong question really. > > Machine types are there to facilitate live migration, and by > extension also handle save/restore to disk. > > So the question is more which distros are likely to ship > new QEMU 9.2, and also still need the ability to incoming > migrate from an older version of their distro where 2.12 > (or a downstream equiv) was a fully supported machine type.
>From Cedric's list, they are ~2018 vintage. I don't know if there is upstream policy on this, but 2025 seems reasonable to remove support for live migration from then. Thanks, Nick
