Re: [RFC kvmtool 0/9] arm: Drop support for 32-bit kvmtool

[Marc Zyngier <maz@kernel.org>]

On Mon, 17 Mar 2025 10:39:44 +0000,
Alexandru Elisei <alexandru.elisei@arm.com> wrote:
> 
> Hi Oliver,
> 
> I'm CC'ing Marc and Andre (Andre is the only person that I know for a fact
> that ran 32 bit kvmtool).
> 
> Haven't looked at the patches in detail, but as someone who ocassionally
> contributes to kvmtool, I have to say it's always nice to have fewer things
> to worry about. I, for one, never used 32 bit kvmtool, I just compiled for
> 32 bit arm to make sure it doesn't break.
> 
> If nobody objects to dropping support for 32 bit kvmtool, I'm planning to
> review the patches.

Frankly, the removal of 32bit support is long overdue. Every time I
hack something in kvmtool (at least once a month), I have to wonder
how to fit that in the 32bit code that I *know* to be dead code.

We kept it ticking around when the kernel code was removed back in
5.6, and in the interval I have ran it *once*. These days, I don't
even have a working 32bit setup.

In all honesty, someone using 32bit KVM can also use an older build of
kvmtool (this piece of SW is *done*), and we can happily move on.

Thanks,

	M.

-- 
Without deviation from the norm, progress is not possible.