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    SubjectRe: [PATCH 6/6 v3] PCI: document the change
    On Tue, Oct 14, 2008 at 12:18:40PM +0800, Dong, Eddie wrote:
    > Matthew Wilcox wrote:
    > > On Tue, Oct 14, 2008 at 10:14:35AM +0800, Yu Zhao wrote:
    > >> As Eddie said, we have two problems here:
    > >> 1) User has to set device specific parameters of a VF
    > >> when he wants to use this VF with KVM (assign this
    > >> device to KVM guest). In this case,
    > >> VF driver is not loaded in the host environment. So
    > >> operations which
    > >> are implemented as driver callback (e.g.
    > >> set_mac_address()) are not supported.
    > >
    > > I suspect what you want to do is create, then configure
    > > the device in the host, then assign it to the guest.
    >
    > That is not true. Rememver the created VFs will be destroyed no matter
    > for PF power event or error recovery conducted reset.
    > So what we want is:
    >
    > Config, create, assign, and then deassign and destroy and then
    > recreate...

    Yes, but my point is this all happens in the _host_, not in the _guest_.

    > Sorry can u explain a little bit more? The SR-IOV patch won't define
    > what kind of entries should be created or not, we leave network
    > subsystem to decide what to do. Same for disk subsstem etc.

    No entries should be created. This needs to be not SR-IOV specific.

    --
    Matthew Wilcox Intel Open Source Technology Centre
    "Bill, look, we understand that you're interested in selling us this
    operating system, but compare it to ours. We can't possibly take such
    a retrograde step."


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