[SeaBIOS] 1TB Guest changes to receive phys bits >=40
Gerd Hoffmann
kraxel at redhat.com
Mon Jun 11 15:52:10 CEST 2018
Hi,
> The change [2] itself is rather old, so I wondered if I'm missing that this
> was implemented in a totally different way. Do I have to switch/set options
> these days instead of using that patch?
It should just work. qemu passes ram regions to the firmware using
fw_cfg (etc/e820) these days, and both seabios and ovmf support this for
years already.
> So the question become why the change is not upstream yet?
> Was it maybe discussed in the past and Nack'ed for some reason?
Exactly.
RHEL/CentOS 6 implemented the extra cmos byte, but this was not accepted
upstream in favor of the more flexible e820 solution.
RHEL/CentOS 7 supports both etc/e820 (upstream) and cmos (el6), but the
later is only there for backward compatibility reasons.
cheers,
Gerd
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