Hi All we are working at DESY (Deutsches Elektronen-Synchrotron, Hamburg Germany) and involved in evaluation of MTCA.4 standard (MTCA for Physics) I have question concerning PCIe hotplag: The Hot-Swap is working, I mean, if there was a PCIe endpoint card in the PCIe slot this module could be later removed and inserted back in running system. But if the Slot was empty and one insert the new PCIe endpoint card in slot, the card will be connected in PCIe bus (I could see it in lspci) but memory not enabled. Only after rebooting of the OS the memory will be enabled. For MTCA.4 standard it is very important to have possibility to add new PCIe endpoint card in running system. So, my question is: is there some OS boot parameter I could reserve memory for all PCIe ports which hase slot implemented (if slot implemented on the PCIe switch or RootComplex port this means later could be some PCIe endpoint card inserted) with best regards Ludwig Petrosyan -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html