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echo: rberrypi
to: MARTIN GREGORIE
from: RICHARD KETTLEWELL
date: 2020-08-28 20:20:00
subject: Re: Spectre / Meltdown

Martin Gregorie  writes:
> Ahem A Rivet's Shot wrote:
>> Martin Gregorie  wrote:
>>
>>> I'm really disapointed that there hasn't been more work done on both
>>> hardware as OS design to make cross-process interference impossible and
>>> to properly implement hardware protection rings to stop
>>> application-level code clobbering the OS and the OS from clobbering to
>>> low-level drivers.
>>
>>  It doesn't help when pipelined processor optimisations break the
>> barriers.
>
> Another argument in favour of RISC rather than CISC?

It’s not related to RISC vs CISC.

--
https://www.greenend.org.uk/rjk/

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