[SeaBIOS] HPET configuration in Seabios
Avi Kivity
avi at redhat.com
Mon Aug 29 13:11:52 CEST 2011
On 08/29/2011 02:05 PM, Jan Kiszka wrote:
> On 2011-08-29 13:00, Avi Kivity wrote:
> > On 08/29/2011 01:25 PM, Jan Kiszka wrote:
> >>>
> >>> Can't seabios just poke at the hpet itself and see if it exists or not?
> >>>
> >>
> >> Would be hard for the BIOS to guess the locations of the blocks unless
> >> we define the addresses used by QEMU as something like base + hpet_no *
> >> block_size in all cases.
> >>
> >
> > Currently we have a fixed address. We could do:
> >
> > if available in fw_cfg:
> > use that (may indicate no hpet)
> > elif fixed address works:
> > use that
> > else
> > no hpet
>
> Currently, we also only have a single HPET block, but that's just
> because of some QEMU limitations that will vanish sooner or later. Then
> nothing will prevent multiple "-device hpet,base=XXX".
>
Yes, so we should enable the fw_cfg interface before that happens.
--
error compiling committee.c: too many arguments to function
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