did anyone have ever use the fpga to send the msi interrupt

did anyone have ever use the fpga to send the msi interrupt,why i read the Message Upper Address，Message Lower Address,Message Data register at first,they are all 0,and then i configure these register in the isr enable callback function,i configure Upper Address register to be FEE00008，Message Data egister to be00000001.and i ask if the MessageID is 1 in the isr callback function,but it seems that the MSI interrupt is not received.why?