When page fault happens in virtual memory management, what is the steps of OS to handle this situation?

first the instruction request the reference to the page table, but the value of the page table is invalid, so the the page table send trap to the System.

then, the system check the page in backing store and find the page.

then, the system bring the missing page to the physical memory so now it exist in the main memory.

finnally, the system reset the page table to let the page valid and then the system restart the instruction.