Re: [Qemu-devel] [PATCH] Use Aff1 with mpidr

[Igor Mammedov <imammedo@redhat.com>]

On Tue, 2 Jun 2015 16:42:31 +0100
Peter Maydell <peter.maydell@linaro.org> wrote:

> On 2 June 2015 at 16:32, Igor Mammedov <imammedo@redhat.com> wrote:
> > On Fri, 29 May 2015 16:41:01 +0300
> > Pavel Fedin <p.fedin@samsung.com> wrote:
> >
> >>  Hello!
> >>
> >> > Well KVM side should be fixed instead of driving us along wrong route.
> >>
> >>  It can be fixed... Perhaps... If kernel developers acknowledge this is a problem, which
> >> might not happen.
> >>  But still we will have older kernels, and what? Don't you want 64-bit ARM KVM work on
> >> them?
> > I think arm target is not counted as stable  yet, so we don't have to keep
> > compatibility layer yet.
> 
> We don't want to break running KVM on older kernels on ARM.
> It's OK if an older kernel means you don't get access to shiny
> new features (like GICv3 support, maybe), but QEMU binaries
> and configurations that used to work on those kernels should
> continue to work on those kernels.
perhaps we would need to start using machine types then like we do for x86
or something like this.

> 
> thanks
> -- PMM