Re: [coreboot] Trace MMIO Read/Write

[Myles Watson]

> -----Original Message-----
> From: coreboot-bounces+mylesgw=[e-mail] [mailto:coreboot-
> bounces+mylesgw=[e-mail]] On Behalf Of Joseph Smith
> Sent: Wednesday, March 04, 2009 6:13 PM
> To: Patrick Georgi; coreboot
> Subject: Re: [coreboot] Trace MMIO Read/Write
>
> On Wed, 04 Mar 2009 17:48:55 -0500, Joseph Smith 
> wrote:
> > On Wed, 04 Mar 2009 17:37:50 -0500, Joseph Smith 
> > wrote:
> > > On Wed, 04 Mar 2009 23:27:07 +0100, Patrick Georgi
> > >
> > > wrote:
> > > > Am 04.03.2009 23:23, schrieb Joseph Smith:
> > > > > Hello,
> > > > > Is there anyway to trace (capture) reads and writes to a mmio space
>
> in
> > > > > Linux? A utility program maybe?
> > > >
> > > > I think that's what the renouveau project does, so they should have a
> > > > tool for that.
> > > > It should work by mapping the mmio area away, then catching all
> >
> > accesses
> > > > before passing them trough.
> > >
> > > Thanks Patrick, I will check it out. Does it catch reads as well as
> > > writes?
> >
> > Ahhh, thanks again Patrick!
> >
> > http://nouveau.freedesktop.org/wiki/MmioTrace
>
> hmmm :-(
> I need to do this on a older kernel 2.6.10 and mmiotrace does not support
> older kernels....
>
> Any other suggestions?

Does it run in a simulator or an emulator?  SimNow or Qemu could log them
for you.

Myles