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Re: [Qemu-devel] [PATCH] s390x/sclp: mark sclp-cpu-hotplug as non-usercr


From: Cornelia Huck
Subject: Re: [Qemu-devel] [PATCH] s390x/sclp: mark sclp-cpu-hotplug as non-usercreatable
Date: Thu, 5 Oct 2017 10:04:59 +0200

On Wed,  4 Oct 2017 17:46:47 +0200
Cornelia Huck <address@hidden> wrote:

> A TYPE_SCLP_CPU_HOTPLUG device for handling cpu hotplug events
> is already created by the sclp event facility. Adding a second
> TYPE_SCLP_CPU_HOTPLUG device via -device sclp-cpu-hotplug creates
> an ambiguity in raise_irq_cpu_hotplug(), leading to a crash once
> a cpu is hotplugged.
> 
> To fix this, disallow creating a sclp-cpu-hotplug device manually.
> 
> Signed-off-by: Cornelia Huck <address@hidden>
> ---
>  hw/s390x/sclpcpu.c | 6 ++++++
>  1 file changed, 6 insertions(+)

Queued to s390-next.



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