[coreboot] suspend/resume in v3

Stefan Reinauer stepan at coresystems.de
Mon Sep 8 17:47:00 CEST 2008

ron minnich wrote:
> On Mon, Sep 8, 2008 at 8:23 AM, Stefan Reinauer <stepan at coresystems.de> wrote:
>> Carl-Daniel Hailfinger wrote:
>>> Stefan, you're the core duo expert. Do you see any way to have the same
>>> stack location during and after CAR?
>> No. There is no RAM at that position.
> OK, can we get a confirmation here one way or another on core 2 duo.
> There is no ram at "that" position. I assume "that" is 0xc0000? Is it
> possible to ever have CARBASE where there is RAM or is this a hardware
> limit. If there is no RAM at CARBASE, then it is not possible to
> return from disable_car and we need a simple redesign.
No, as I wrote, it's 0xFFxxxxxx. Putting it in the low 1M will not work.

> The CAR decision in v3 that was taken some time ago was to assume that
> we could return from disable_car.
Why would this not be possible? Change %sp and return.


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