Is there a way to map two variables to same cache set in ARM?

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I have been trying to implement a Cache Side Channel attack on ARM. Since ARM doesn't have any instruction or function (similar to cflush) defined to flush the cache contents, I am trying to achieve this by Evict+Reload method. This method requires the eviction set to be placed in the same cache set as the data trying to be replaced, what would be the way to find out the cache set the data is present in and also how can I force my eviction set to be placed on the same cache set?

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