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    SubjectRe: [Patch 1/1] x86 pci: Add option to not assign BAR's if not already assigned
    On 06/02/2010 05:45 PM, Bjorn Helgaas wrote:
    > On Wednesday, June 02, 2010 01:31:18 am H. Peter Anvin wrote:
    >> On 06/01/2010 03:49 PM, Bjorn Helgaas wrote:
    >>>>
    >>>> BIOS still assigns the MMIO BAR's so the devices are alive.
    >>>
    >>> I'm sorry; I don't follow this. BIOS assigns MMIO BARs regardless
    >>> of whether we have your patch.
    >>
    >> I'm assuming that that Mike is implying is that the allocation code runs
    >> out of I/O space and as a result shuts down the entire device.
    >
    > Yeah, that's why I asked about a deeper problem. There's not really a
    > "shut down this device" flag, so the only way I can think of that we
    > might make a device completely unusable is if we release all the device
    > resources and then fail to reassign them.
    >
    > A concrete example, e.g., a dmesg log, would go a long ways toward
    > clarifying this.
    >

    That's what I thought, which I guess means my original question to Mike
    still stands...

    -hpa



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