Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [kvm-devel] [PATCH 3/3] virtio PCI device | Date | Fri, 9 Nov 2007 12:03:53 +0100 |
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On Thursday 08 November 2007, Anthony Liguori wrote: > > They already show up underneath of the PCI bus. The issue is that there > are two separate 'struct device's for each virtio device. There's the > PCI device (that's part of the pci_dev structure) and then there's the > virtio_device one. I thought that setting the dev.parent of the > virtio_device struct device would result in having two separate entries > under the PCI bus directory which would be pretty confusing
But that's what a device tree means. Think about a USB disk drive: The drive shows up as a child of the USB controller, which in turn is a child of the PCI bridge. Note that I did not suggest having the virtio parent set to the parent of the PCI device, but to the PCI device itself.
I find it more confusing to have a device just hanging off the root when it is actually handled by the PCI subsystem.
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