>
quoted text
> I think what Erik is trying to do is to make it possible to disable as
> many of these in the kernel as possible; I/O is easy, it's off by
> default; RDTSC and RDPMC can be disabled in the kernel, and I think
> even XSTORE can be disabled.

I'm a little sceptical it will work reliably, but we'll see.

There's also LSL (forgot that earlier). It is used by the vgetcpu()
because it's faster than CPUID or RDTSCP. Kernel
sets a magic segment up which has different limits for different CPUs.

-Andi

--
unsubscribe notice
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/