don't flush pages that haven't been accessed #190
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The accessed bit is always set before pages are cached in the TLB (this is even true for speculative reads). Consequently if a page doesn't have the accessed bit set, we don't need to flush it.
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The accessed bit is always set before pages are cached in the TLB (this is even true for speculative reads). Consequently, if a page doesn't have the accessed bit set, we don't need to flush it.