Re: Memory Management - BSD vs Linux

H. Peter Anvin (hpa@transmeta.com)
13 Aug 1997 22:11:44 GMT

Followup to: <199708131752.KAA13458@connectnet1.connectnet.com>
By author: Darin Johnson <darin@connectnet.com>
In newsgroup: linux.dev.kernel
>
> Ah, this makes more sense now. I assumed TLB's were always
> automatically managed, and didn't realize some chips might not
> do this.
>

No, and it is becoming less common on RISC chips, at least. The Alpha
does TLB reloads in the PALcode (Privileged Architecture Library),
which is software, although running in a special privileged mode --
in some sense similar to SMM on Intel chips.

-hpa

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