From: Cornelia Huck <cohuck@redhat.com>
To: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Janosch Frank <frankja@linux.vnet.ibm.com>,
David Hildenbrand <david@redhat.com>,
qemu-devel <qemu-devel@nongnu.org>,
qemu-stable@nongnu.org, qemu-s390x <qemu-s390x@nongnu.org>,
Richard Henderson <rth@twiddle.net>
Subject: Re: [PATCH] s390/sclp: improve special wait psw logic
Date: Thu, 20 Feb 2020 17:27:28 +0100 [thread overview]
Message-ID: <20200220172728.05992077.cohuck@redhat.com> (raw)
In-Reply-To: <a28b2eb0-8436-ff4e-c1f2-943ca6cd7443@de.ibm.com>
On Thu, 20 Feb 2020 14:35:01 +0100
Christian Borntraeger <borntraeger@de.ibm.com> wrote:
> On 20.02.20 14:26, David Hildenbrand wrote:
> > On 20.02.20 14:16, Christian Borntraeger wrote:
> >> There is a special quiesce PSW that we check for "shutdown". Otherwise disabled
> >> wait is detected as "crashed". Architecturally we must only check PSW bits
> >> 116-127. Fix this.
> >>
> >> Cc: qemu-stable@nongnu.org
> >
> > Is this really stable material?
>
> Guests that end with lets say 0xaafffUL would be considered "crashed" instead of "shutdown".
> I will let Conny decide.
It cannot really hurt; but would be interesting if you have seen that
in the wild.
> >
> > Reviewed-by: David Hildenbrand <david@redhat.com>
> >
>
next prev parent reply other threads:[~2020-02-20 16:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-20 13:16 [PATCH] s390/sclp: improve special wait psw logic Christian Borntraeger
2020-02-20 13:26 ` David Hildenbrand
2020-02-20 13:35 ` Christian Borntraeger
2020-02-20 16:27 ` Cornelia Huck [this message]
2020-02-20 13:47 ` Janosch Frank
2020-02-20 17:00 ` Cornelia Huck
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