Is there a way to confirm that Initialization Mode has ended and transitioned to User Mode using Configuration via Protocol (CvP)?

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Is there a way to confirm that the Configuration via Protocol (CvP) has exited Initialization Mode and entered User Mode?

PCI Express

Category: PCI-Express® (PCIe)
Tools: Quartus® Prime
Device: Arria® 10

Check the INIT_DONE signal to check in hardware

As a confirmation method on the software side, IP registers can be used.
There is something called Altera-Defined VSEC Registers in the IP, and CvP Status is provided at 0x21C.
Among them, the 21st bit indicates User Mode.

See the document below for details.
https://www.altera.com/en_US/pdfs/literature/ug/ug_cvp.pdf
(Search by keywords such as VSEC Registers for CvP.)

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