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    SubjectRe: [RFC v3] arm: Add platform bus driver for memory mapped virtio device
    On 09/18/2011 10:29 PM, Rusty Russell wrote:
    > On Fri, 16 Sep 2011 12:01:49 -0500, Anthony Liguori<> wrote:
    >> On 09/16/2011 11:47 AM, Pawel Moll wrote:
    >>> This patch, based on virtio PCI driver, adds support for memory
    >>> mapped (platform) virtio device. This should allow environments
    >>> like qemu to use virtio-based block& network devices.
    >>> One can define and register a platform device which resources
    >>> will describe memory mapped control registers and "mailbox"
    >>> interrupt. Such device can be also instantiated using the Device
    >>> Tree node with compatible property equal "virtio,mmio".
    >>> Cc: Rusty Russell<>
    >>> Cc: Anthony Liguori<>
    >>> Cc: Michael S.Tsirkin<>
    >>> Signed-off-by: Pawel Moll<>
    >> Have you written a specification for this device?
    >> Rusty maintains a formal spec for all virtio devices at:
    >> The spec should be written before merging the code to make sure that there
    >> aren't future compatibility problems.
    > A good idea, but the current spec is for PCI. I wonder if we should
    > move the PCI part out to an appendix and make it more general?
    > Meanwhile, perhaps this would be suitable as an appendix.

    I was thinking an appendix would be a good start.


    Anthony Liguori

    > Cheers,
    > Rusty.

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