Re: [Qemu-devel] [PATCH 0/6] Add UUID command-line option

["Blue Swirl" <blauwirbel@gmail.com>]

On 8/24/08, Avi Kivity <avi@qumranet.com> wrote:
> Blue Swirl wrote:
>
> > For example, Bochs seems to use i440fx registers to determine the
> > available physical memory. This could be changed to use the
> > configuration structure instead. It's a matter of taste, but I would
> > find this an improvement.
> >
> >
>
>  More hardwarelike would be to detect how much memory exists and have the
> bios program those registers, instead of reading those registers (if I
> understand you correctly).

True, but realistic probing for memory could take some time if there
is a huge amount of it. Moreover, this level of precision would not
gain anything in Qemu use, it would be unnecessary. If Bochs BIOS was
aiming to be used as a real, physical PC BIOS in the future, then
these kind of improvements might be useful.

A long time ago on Sparc32, I put the memory size to one of CPU
registers. That was quick and easy for both sides but dirty.