Re: devicetree random-seed properties, was: "Re: [PATCH v7 0/9] x86/mm: memory area address KASLR"

[Andy Lutomirski]

On Fri, Jun 24, 2016 at 12:04 PM, Kees Cook <keescook@xxxxxxxxxxxx> wrote:
> On Fri, Jun 24, 2016 at 9:02 AM, Jason Cooper <jason@xxxxxxxxxxxxxx> wrote:
>> Thomas,
>>
>> Sorry for wandering off the topic of your series.  The big take away for
>> me is that you and Kees are concerned about x86 systems pre-RDRAND.
>> Just as I'm concerned about deployed embedded systems without bootloader
>> support for hw-rngs and so forth.
>>
>> Whatever final form the approach takes for ARM/dt, I'll make sure we can
>> extend it to legacy x86 systems.
>
> Yeah, this seems like a productive conversation to me. :)

I have an old patch and spec I need to dust off that does this during
*very* early boot on x86 using MSRs so that kASLR can use it.