CACHING BINARY TRANSLATIONS FOR VIRTUAL MACHINE GUEST

In one embodiment, a method comprises in response to an intercept of a first instruction in a guest that is controlled by a virtual machine monitor (VMM), updating first tracking data corresponding to the first instruction in an intercept tracking table; determining, from the first tracking data, that a translation of the first instruction into a first routine is to be performed; and caching the first routine to be executed in response to a subsequent intercept of the first instruction, wherein the first routine is formed from instructions defined in a same instruction set architecture as the first instruction. In some embodiments, a routine for an intercepted instruction that is within a merge window of the first instruction in a guest may be merged into the same routine with the first instruction.