Why does BIOS assign memory to 16 byte BAR

Bharat Kumar Gogada bharat.kumar.gogada at xilinx.com
Fri Jul 22 02:24:22 PDT 2016


Hi,

I'm observing that on x86 BIOS successfully assigns memory if an End point requests
BAR of size 16byte.

But as per Spec:
The minimum memory address range requested by a BAR is 128 bytes.

Why BIOS is successfully allocating region to 16 byte BAR requests?

Please let me know if my observation is wrong.

Regards,
Bharat



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