1. A method for triggering virtual machine introspection, comprising: determining data that needs to be protected; storing, in a read set of a hardware transactional memory, a memory address corresponding to the determined data that needs to be protected; monitoring whether a write operation is executed on the data that needs to be protected and corresponds to the memory address stored in the read set; and controlling a transaction processing program of the hardware transactional memory to trigger virtual machine introspection, when it is determined that a write operation is executed on data that needs to be protected.