Movim • Intel Linear Address Masking "LAM" Merged Into Linux 6.4

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people 222 subscribers • Linux Hardware Reviews, Open-Source Benchmarks & Linux Performance

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Intel Linear Address Masking "LAM" Merged Into Linux 6.4

news.movim.eu / Phoronix • 29 April, 2023

Since 2020 Intel engineers have been working on Linear Address Masking (LAM) as a feature similar to Arm's Top Byte Ignore (TBI) for letting user-space store metadata within some bits of pointers without masking it out before use. This can be of use to virtual machines, profiling / sanitizers / tagging, and other applications. The Intel LAM kernel support has finally been merged with Linux 6.4...

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