[Qemu-devel] Re: [PATCH] QEMU - provide e820 reserve through qemu_cfg

[Jes Sorensen]

On 01/25/10 18:28, Alexander Graf wrote:
> > > That way we'd get 2 entries and the chance to enhance them later on.
> > > In fact, it might even make sense to pass the whole table in such a
> > > form. That way qemu generates all of the e820 tables and we can
> > > declare whatever we want. Just add a type field in the table.
> >
> > I am fine with having QEMU build the e820 tables completely if there is
> > a consensus to take that path.
>
> I agree. We better get this right :-). I don't want to maintain 5
> versions of an 380 fw_cfg interface.

Looking at the internals, some of the e820 entries are based on compile
time constants for the BIOS, so it will be hard to pass those from
QEMU, but we could do it in a way so we pass a number of additional
e820 entries. Ie. address, length, and type.

What do you think?

Cheers,
Jes