On 03/07/2016 10:24 AM, Khalid Aziz wrote:
Tags can be cleared by user by setting tag to 0. Tags are automatically cleared by the hardware when the mapping for a virtual address is removed from TSB (which is why swappable pages are a problem), so kernel does not have to do it as part of clean up.
I don't understand this. The hardware isn't involved when a mapping for a virtual address is removed from the TSB, so how could it automatically clear tags?
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