Re: [SeaBIOS] [Qemu-devel] [PATCH 3/3] Changes related to secondary buses and 64bit regions

[Alexey Korolev]

> > > There are two main things we can do:
> > > Make the 64 bit device only use the low 32 bit
> >
> > It was my first implementation. Unfortunately older versions of
> > Linux (Like 2.6.18) hang during startup with this.
> > As far as I remember it was qemu-0.15 so may be 1.0 have no such an
> > issue. I will check this.
> That seems really odd - there's nothing unusual with a 64bit bar being
> set to an address under 4gig.
> Looking at the current code, it's not initializing 64bit bars properly
> (it doesn't initialize the top bits of the 64bit address).  Does just
> the patch below (totally untested) improve things for you?

Yes I see. Will test after short holidays, now it's quite late in New Zealand.
BTW: Tried today version 1.0 to reproduce this issue and could not
reproduce it.