Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems
On 17/02/2023 17.38, Paolo Bonzini wrote:
On 2/17/23 11:47, Daniel P. Berrangé wrote:
> On Fri, Feb 17, 2023 at 11:36:41AM +0100, Markus Armbruster wrote:
>> I feel the discussion petered out without a conclusion.
>>
>> I don't think letting the status quo win by inertia is a good outcome
>> here.
>>
>> Which 32-bit hosts are still useful, and why?
>
> Which 32-bit hosts does Linux still provide KVM support for.
All except ARM: MIPS, x86, PPC and RISC-V.
I would like to remove x86, but encountered some objections.
So if I got that right:
https://lore.kernel.org/all/b8fa9561295bb6af2b7fcaa8125c6a3b89b305c7.came...
... the objection is mainly that some kernel developers want to keep the
code around for easier testing of nested 32-bit guests L1 hypervisors.
If that's the only use case that is still around for the 32-bit KVM x86
kernel code, I guess it should also be fine to use older versions of QEMU in
those L1 hypervisor guests (assuming you have to use an older 32-bit Linux
distro for this anyway).
So unless I got that wrong, there is really nobody around anymore who needs
an *upstream* QEMU for running 32-bit x86 KVM hosts, is there?
Please correct me if I'm wrong, but I think we can really deprecated at
least qemu-system-i386 and qemu-system-arm now, can't we?
Thanks,
Thomas