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Re: [PATCH v3 0/8] Generalize start-powered-off property from ARM

From: Philippe Mathieu-Daudé
Subject: Re: [PATCH v3 0/8] Generalize start-powered-off property from ARM
Date: Thu, 30 Jul 2020 13:05:39 +0200

Le jeu. 30 juil. 2020 03:00, David Gibson <david@gibson.dropbear.id.au> a écrit :
On Tue, Jul 28, 2020 at 09:56:36PM -0300, Thiago Jung Bauermann wrote:
> Thiago Jung Bauermann <bauerman@linux.ibm.com> writes:
> > The ARM code has a start-powered-off property in ARMCPU, which is a
> > subclass of CPUState. This property causes arm_cpu_reset() to set
> > CPUState::halted to 1, signalling that the CPU should start in a halted
> > state. Other architectures also have code which aim to achieve the same
> > effect, but without using a property.
> >
> > The ppc/spapr version has a bug where QEMU does a KVM_RUN on the vcpu
> > before cs->halted is set to 1, causing the vcpu to run while it's still in
> > an unitialized state (more details in patch 3).
> Since this series fixes a bug is it eligible for 5.1, at least the
> patches that were already approved by the appropriate maintainers?

Ok by me.

Maybe just the arm generalization and ppc fix for 5.1, delaying all not bugfix to 5.2?

David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!

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