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From: Eduardo Habkost <ehabkost@redhat.com>
To: "Philippe Mathieu-Daudé" <philmd@redhat.com>
Cc: "Damien Hedde" <damien.hedde@greensocs.com>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	qemu-trivial@nongnu.org, qemu-devel@nongnu.org,
	"Markus Armbruster" <armbru@redhat.com>,
	"Marc-André Lureau" <marcandre.lureau@redhat.com>
Subject: Re: [PATCH 11/11] hw/misc/vmcoreinfo: Convert reset handler to DeviceReset
Date: Tue, 8 Oct 2019 10:32:19 -0300	[thread overview]
Message-ID: <20191008133219.GV4084@habkost.net> (raw)
In-Reply-To: <f110c099-7521-95e0-74b9-9c7e53d7d5d8@redhat.com>

On Thu, Sep 26, 2019 at 06:02:47PM +0200, Philippe Mathieu-Daudé wrote:
> On 9/26/19 5:17 PM, Philippe Mathieu-Daudé wrote:
> > Convert the reset handler into a proper Device reset method.
> 
> Marc-André noticed this one is incorrect, because while being QDEV it is
> not connected to a QBUS.
> 
> Maybe we can add a Device::unconnected property, and when set, the
> parent realize() calls 'qemu_register_reset(dev->reset, dev);'?
> This might look the same, but at least Devices implementations could
> stop to use this function...

Can we make this automatic instead of requiring another explicit
setting?

Today we have at least 3 different ways of getting a device to be
reset: qemu_register_reset(); explicit device_reset_all() call in
another reset handler; and implicit device_reset_all() call done
through parent buses/devices.  I wouldn't like to create a 4th
method.

What I really wish for, is a opt-out mechanism for reset (meaning
all devices would be guaranteed to be reset unless they
explicitly opt out), instead of 3 or 4 different opt-in
mechanisms.

-- 
Eduardo


  reply	other threads:[~2019-10-08 13:33 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-26 15:17 [PATCH 00/11] hw: Convert various reset() handler to DeviceReset Philippe Mathieu-Daudé
2019-09-26 15:17 ` [PATCH 01/11] hw/acpi/piix4: Convert reset " Philippe Mathieu-Daudé
2019-10-04 11:32   ` Igor Mammedov
2019-09-26 15:17 ` [PATCH 02/11] hw/ide/piix: " Philippe Mathieu-Daudé
2019-09-26 15:17 ` [PATCH 03/11] hw/isa/piix4: " Philippe Mathieu-Daudé
2019-09-26 15:17 ` [PATCH 04/11] hw/pci-host/piix: " Philippe Mathieu-Daudé
2019-09-26 15:17 ` [PATCH 05/11] hw/ide/sii3112: " Philippe Mathieu-Daudé
2019-09-26 15:17 ` [PATCH 06/11] hw/ide/via82c: " Philippe Mathieu-Daudé
2019-09-26 15:17 ` [PATCH 07/11] hw/isa/vt82c686: " Philippe Mathieu-Daudé
2019-09-26 15:17 ` [PATCH 08/11] hw/input/lm832x: " Philippe Mathieu-Daudé
2019-09-26 15:17 ` [PATCH 09/11] hw/pci-host/bonito: " Philippe Mathieu-Daudé
2019-09-26 15:17 ` [PATCH 10/11] hw/timer/etraxfs: " Philippe Mathieu-Daudé
2019-09-26 15:17 ` [PATCH 11/11] hw/misc/vmcoreinfo: " Philippe Mathieu-Daudé
2019-09-26 16:02   ` Philippe Mathieu-Daudé
2019-10-08 13:32     ` Eduardo Habkost [this message]
2019-10-09  9:04       ` Damien Hedde
2019-10-09 13:51     ` Peter Maydell
2019-09-27  8:47 ` [PATCH 00/11] hw: Convert various reset() " no-reply
2019-10-05 21:46 ` Michael S. Tsirkin
2019-10-07 10:01   ` Philippe Mathieu-Daudé
2019-10-07 21:24     ` Eduardo Habkost
2019-10-08  9:47       ` Peter Maydell

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