• Mika Westerberg's avatar
    thunderbolt: Discover preboot PCIe paths the boot firmware established · 0414bec5
    Mika Westerberg authored
    In Apple Macs the boot firmware (EFI) connects all devices automatically
    when the system is started, before it hands over to the OS. Instead of
    ignoring we discover all those PCIe tunnels and record them using our
    internal structures, just like we do when a device is connected after
    the OS is already up.
    
    By doing this we can properly tear down tunnels when devices are
    disconnected. Also this allows us to resume the existing tunnels after
    system suspend/resume cycle.
    Signed-off-by: default avatarMika Westerberg <mika.westerberg@linux.intel.com>
    0414bec5
tb.c 12.2 KB