On Tue, 9 Jan 2001, Michael Shmulevich wrote:
> As a side question, I would like to to know why exactly the CPU cache operations
> are
> promoted to the syscall status? What is the situation that a user in its program
> would like
> to call cacheflush() ? Unless, of course, he is doing DoS.
>
> I can understand why we need this in kernel, for context switch, for example, but
> as a syscall?...
For trampolines. These are small pieces of code created on the stack, and
require flushing of the caches before they are excuted.
Gr{oetje,eeting}s,
Geert
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Geert Uytterhoeven ------------- Sony Software Development Center Europe (SDCE)
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