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    SubjectRe: [PATCH] Implement a virtio GPU transport
      On 10/19/2010 12:31 PM, Ian Molton wrote:
    >
    >> an virtualization@, many virtio developers live there.
    >
    > you mean virtualization@lists.osdl.org ?

    Yes.

    >
    >> 2. should start with a patch to the virtio-pci spec to document what
    >> you're doing
    >
    > Where can I find that spec?

    http://ozlabs.org/~rusty/virtio-spec/

    >
    >>> + /* Transfer data */
    >>> + if (virtqueue_add_buf(vq, sg_list, o_page, i_page, (void *)1)>= 0) {
    >>> + virtqueue_kick(vq);
    >>> + /* Chill out until it's done with the buffer. */
    >>> + while (!virtqueue_get_buf(vq,&count))
    >>> + cpu_relax();
    >>> + }
    >>> +
    >>
    >> This is pretty gross, and will burn lots of cpu if the hypervisor
    >> processes the queue asynchronously.
    >
    > It doesnt, at present... It could be changed fairly easily ithout
    > breaking anything if that happens though.

    The hypervisor and the guest can be changed independently. The driver
    should be coded so that it doesn't depend on hypervisor implementation
    details.

    --
    error compiling committee.c: too many arguments to function



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