Hi Alex, On 5/22/2017 4:14 PM, Alex Williamson wrote: >> UEFI seems to be assigning an IO resource to bridge only if finds an endpoint >> behind it with an actual IO BAR space. > If it's anything like we saw with similar issues on QEMU, it might be > because the slots report themselves as hotplug capable and Linux tries > to allocate minimum apertures for any hotplug slot. See hpiosize > and hpmemsize options for pci=. Thanks, That was it. I was suspicious of this but didn't realize that we were allocating 0x1000 as a minimum due to hotplug. Thanks for the suggestion. I didn't know the hpmemsize and hpiosize arguments. Sinan -- Sinan Kaya Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
