On Tue, Sep 22, 2020 at 07:26:42PM +0200, Paolo Bonzini wrote:
> On 22/09/20 19:22, Eduardo Habkost wrote:
> > If it was possible, did KVM break live migration of
> > kernel-irqchip=off guests that enabled APF? This would mean my
> > patch is replacing a crash with a silent migration bug. Not nice
> > either way.
>
> Let's drop kernel-irqchip=off completely so migration is not broken. :)
>
> I'm actually serious, I don't think we need a deprecation period even.
I wasn't sure about this, but then I've noticed the man page says
"disabling the in-kernel irqchip completely is not recommended
except for debugging purposes."
Does this note apply to all architectures?
At least on ARM, Raspberry Pi 4 cannot use kernel-irqchip=on at all. But remember I am only talking about x86.
Paolo