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Re: [Qemu-devel] [PATCH RFC 0/3] qdev: order devices by priority before

From: Markus Armbruster
Subject: Re: [Qemu-devel] [PATCH RFC 0/3] qdev: order devices by priority before creating them
Date: Tue, 10 May 2016 10:28:43 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)

Marcel Apfelbaum <address@hidden> writes:

> This series aims to allow more devices to be used with '-device'
> by sorting the devices based on a predefined creation order flag
> before creating them.
> Devices like IOMMU need to be created before others, so they can leverage
> the DeviceCreationPriority flag introduced by the first patch to DeviceClass.
> The second patch sorts the devices by their DeviceCreationPriority
> before creating them.
> Finally, the last patch demonstrates how it can be used to ensure
> the creation of host-bridges before the pci-bridges and pci-bridges before
> the others.
> I preferred to combine all the priorities into a single enum
> to better manage the creation order.
> This is an RFC because I only wanted to know if it seems like the right way 
> to go.
> Comments are appreciated,

Can you explain why requiring the user to specify -device in a sane
order isn't good enough?

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