MSI interrupt occured but not detected

hello

I set a MSI interupt in TMDSEVM6670LE board. like this

My board start. then I set enable HWI using  Hwi_enableInterrupt(5) function.

and I set MSI_ADDRESS 0x21800054, MSI_DATA 0x00 on my EP board.

I set my EP board to occure MSI interrupt. I can find MSI interrupt occured on MSI0_IRQ_STATUS(0x21800004) register.

but MSI_Irq Function is not excute.

What I miss it ??

Thank you.

Regards.