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SubjectRe: [tip:x86/kaslr] x86, kaslr: Provide randomness functions

* H. Peter Anvin <hpa@zytor.com> wrote:

> On 11/11/2013 11:58 AM, Ingo Molnar wrote:
> >>
> >> Use the i8254 if and only if nothing else is available, it isn't safe to
> >> touch on some newer systems.
> >
> > I concur - the i8254 is probably also a low entry source, given that this
> > all runs early bootup.
> >
>
> Well, it is a 16-bit 1.19318 MHz counter so at least on older systems it
> is likely to provide at least a modicum on entropy. On systems with a
> TSC it is likely to be redundant with the TSC.

Yeah.

Thanks,

Ingo


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