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    SubjectRe: Use of virtio device IDs
    Rusty Russell wrote:
    > On Wednesday 07 November 2007 16:40:13 Avi Kivity wrote:
    >
    >> Gregory Haskins wrote:
    >>
    >>> but FWIW: This is a major motivation for the reason that the
    >>> IOQ stuff I posted a while back used strings for device identification
    >>> instead of a fixed length, centrally managed namespace like PCI
    >>> vendor/dev-id. Then you can just name your device something reasonably
    >>> unique (e.g. "qumranet::veth", or "ibm-pvirt-clock").
    >>>
    >> I dislike strings. They make it look as if you have a nice extensible
    >> interface, where in reality you have a poorly documented interface which
    >> leads to poor interoperability.
    >>
    >
    > Yes, you end up with exactly names like "qumranet::veth"
    > and "ibm-pvirt-clock". I would recommend looking very hard at /proc, Open
    > Firmware on a modern system, or the Xen store, to see what a lack of
    > limitation can do to you :)
    >
    >
    >> We will support non-pci for s390, but in order to support Windows and
    >> older Linux PCI is necessary.
    >>
    >
    > The aim is that PCI support is clean, but that we're not really tied to PCI.
    > I think we're getting closer with the recent config changes.
    >

    Yes, my main desire was to ensure that we had a clean PCI ABI that would
    be natural to implement on a platform like Windows. I think with the
    recent config_ops refactoring, we can now do that.

    Regards,

    Anthony Liguori

    > Cheers,
    > Rusty.
    >

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