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Re: [Qemu-devel] [PATCH RFC 0/3] qdev: order devices by priority before
Michael S. Tsirkin
Re: [Qemu-devel] [PATCH RFC 0/3] qdev: order devices by priority before creating them
Wed, 11 May 2016 16:55:28 +0300
On Tue, May 10, 2016 at 07:13:29PM +0200, Paolo Bonzini wrote:
> On 10/05/2016 17:36, Michael S. Tsirkin wrote:
> >> > Can you explain why requiring the user to specify -device in a sane
> >> > order isn't good enough?
> > Because it requires knowledge about the hardware.
> > For example, how do users know that iommu must come before the devices?
> > They don't.
> Could they "know" it by adding an iommu=foo argument to e.g. the PCI
> bridge, pointing to the IOMMU device?
People don't create the pci host bridge though, it's
part of the default machine.