1. A method for relinquishing cache ownership of a cache line, the method comprising executing, by a microprocessor core, a demote instruction, the demote instruction specifying a logical address, the executing performing a method comprising: determining whether a cache line of a cache, corresponding to the logical address is exclusively owned by the microprocessor core; and based on determining that the cache line is exclusively owned by the microprocessor core, relinquishing, by the microprocessor core, exclusive ownership of the cache line.