From: Paolo Bonzini <pbonzini@redhat.com>
To: "Peter Crosthwaite" <peter.crosthwaite@xilinx.com>,
"Andreas Färber" <afaerber@suse.de>
Cc: "qemu-devel@nongnu.org Developers" <qemu-devel@nongnu.org>,
Alexander Graf <agraf@suse.de>,
"Christian Borntraeger (s390x)" <borntraeger@de.ibm.com>,
jfrei@linux.vnet.ibm.com,
Cornelia Huck <cornelia.huck@de.ibm.com>,
Xu Wang <gesaint@linux.vnet.ibm.com>
Subject: Re: [Qemu-devel] [PATCH for-2.4 1/2] core: reset handler for bus-less devices
Date: Mon, 13 Jul 2015 16:28:06 +0200 [thread overview]
Message-ID: <55A3CAF6.90603@redhat.com> (raw)
In-Reply-To: <CAEgOgz7jbgmNW8eMuQcVURyBrHb95mEHiH+ZRGKFm7m3noRYdA@mail.gmail.com>
On 09/07/2015 20:53, Peter Crosthwaite wrote:
>
> Any reason to not just rip though the whole QOM tree and reset every
> device regardless of bus/containuer arch? IIRC the semantics for
> ->reset (and at least devices_reset()) are "pull the plug out of wall
> and put it back in again" so there is currently supposed to be no
> scope for controlling reset events.
Most bus ->reset methods expect the children to be reset before the
parent (postorder). At least SCSI and PCI do.
Paolo
next prev parent reply other threads:[~2015-07-13 14:28 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-09 16:51 [Qemu-devel] [PATCH for-2.4 0/2] reset for bus-less devices Cornelia Huck
2015-07-09 16:51 ` [Qemu-devel] [PATCH for-2.4 1/2] core: reset handler " Cornelia Huck
2015-07-09 16:59 ` Andreas Färber
2015-07-09 18:53 ` Peter Crosthwaite
2015-07-13 14:28 ` Paolo Bonzini [this message]
2015-07-13 12:22 ` Christian Borntraeger
2015-07-13 14:11 ` Cornelia Huck
2015-07-13 14:20 ` Andreas Färber
2015-07-13 14:30 ` Christian Borntraeger
2015-07-13 15:05 ` Andreas Färber
2015-07-13 15:38 ` Cornelia Huck
2015-07-13 15:49 ` Andreas Färber
2015-07-13 15:56 ` Peter Maydell
2015-07-13 14:37 ` Cornelia Huck
2015-07-13 16:06 ` Andreas Färber
2015-07-14 7:41 ` Cornelia Huck
2015-07-09 16:51 ` [Qemu-devel] [PATCH for-2.4 2/2] watchdog/diag288: handle subsystem resets correctly Cornelia Huck
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