On Tue, 5 Feb 2013 20:01:15 +0200 Ville Syrj?l? <ville.syrjala at linux.intel.com> wrote: > On Sat, Feb 02, 2013 at 01:56:10PM +0100, Jesse Barnes wrote: > > The Gunit has a separate reg for this, so allocate some stolen space for > > the power context and initialize the reg. > > AFAIK the BIOS is responsible for setting up the PCBR register. The > register can also be locked preventing further updates, so if the BIOS > actually has done what it's supposed to, this code will fail. > > So should we just instead read out the PCBR and remove the range from > the stolen mem pool? At the very least. I'll have to check with the BIOS folks; I'm pretty sure on some machines we'll need to do this ourselves. Jesse
