3 ms·
Intel has linear address masking and amd has upper address ignore which are similar, but of course have different implementation details. Lwn wrote about the l
by TheAdamist 4y ago
Intel has linear address masking and amd has upper address ignore which are similar, but of course have different implementation details.
Lwn wrote about the linux support here, https://lwn.net/Articles/902094/ https://lwn.net/Articles/902094/
How many years till "256TB ought to be enough for anyone", will become a repeated quote? And we will wish we had kept those extra bytes available for addressing.
- alpaca128 4y agoWell, TBI only uses one of the two unused bytes. Meaning it would still keep working until an increase to 56 bits, or 65536TB of virtual memory. Once even that's not enough this CPU architecture isn't going to be used outside of VMs anyway.