On Dec 12, 2024, at 6:55 AM, Arnd Bergmann <arnd@xxxxxxxxxx> wrote: > From: Arnd Bergmann <arnd@xxxxxxxx> > > I submitted a patch to remove KVM support for x86-32 hosts earlier > this month, but there were still concerns that this might be useful for > testing 32-bit host in general, as that remains supported on three other > architectures. I have gone through those three now and prepared similar > patches, as all of them seem to be equally obsolete. > > Support for 32-bit KVM host on Arm hardware was dropped back in 2020 > because of lack of users, despite Cortex-A7/A15/A17 based SoCs being > much more widely deployed than the other virtualization capable 32-bit > CPUs (Intel Core Duo/Silverthorne, PowerPC e300/e500/e600, MIPS P5600) > combined. I do use 32-bit KVM on a Core Duo “Yonah” and a Power Mac G4 (MDD), for purposes of bisecting kernel issues without having to reboot the host machine (when it can be duplicated in a KVM environment). I suppose it would still be possible to run the hosts on 6.12 LTS for some time with newer guests, but it would be unfortunate. Best, -arw > > It probably makes sense to drop all of these at the same time, provided > there are no actual users remaining (not counting regression testing > that developers might be doing). Please let me know if you are still > using any of these machines, or think there needs to be deprecation > phase first. > > Arnd -- Anna Wilcox (she/her) SW Engineering: C++/Rust, DevOps, POSIX, Py/Ruby Wilcox Technologies Inc. | Adélie Linux
