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    Subjectpci-express hotplug
    Hi,

    I'm trying to get pci-express hotplug working in a box here. I don't
    really care about the hotplug aspect, I just want the darn pci-e slots
    that are designated hotplug slots to actually WORK. When I load pciehp,
    I get:

    Firmware did not grant requested _OSC control
    Firmware did not grant requested _OSC control
    Firmware did not grant requested _OSC control
    Firmware did not grant requested _OSC control
    pciehp 0000:00:05.0:pcie04: HPC vendor_id 8086 device_id 340c ss_vid 0 ss_did 0
    pciehp 0000:00:05.0:pcie04: service driver pciehp loaded
    Firmware did not grant requested _OSC control
    pciehp 0000:00:07.0:pcie04: HPC vendor_id 8086 device_id 340e ss_vid 0 ss_did 0
    pciehp 0000:00:07.0:pcie04: service driver pciehp loaded
    Firmware did not grant requested _OSC control
    pciehp 0000:80:07.0:pcie04: HPC vendor_id 8086 device_id 340e ss_vid 0 ss_did 0
    pciehp 0000:80:07.0:pcie04: service driver pciehp loaded
    pciehp 0000:80:09.0:pcie04: HPC vendor_id 8086 device_id 3410 ss_vid 0 ss_did 0
    pciehp 0000:80:09.0:pcie04: service driver pciehp loaded
    pciehp: PCI Express Hot Plug Controller Driver version: 0.4

    and the devices in the hotplug slots stay off. Is this an ACPI/bios
    issue? How can I debug this?

    --
    Jens Axboe



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