Anthony Liguori wrote:
Sebastian Herbszt wrote:
Gerd Hoffmann wrote:
On 12/18/09 17:42, Anthony Liguori wrote:
Do we need to do something for -M pc-0.11? Like loading the pci roms
via fw_cfg too so the guest doesn't see the new pci rom bar?
Yes, we do. We can fix that problem as a stable-0.12 update though.
Right now, migration with pc-0.11 is broken in other areas too.
Ok. When it is fine to defer this to stable-0.12 then I have no
objections to merge it for 0.12 (assuming the seabios folks ack+merge
the seabios changes).
0.12 will contain known regressions?
Migrating between versions is not a regression.
If SeaBIOS would not have any regressions compared to Bochs BIOS then
maybe.
Does it? I'm not aware of any SeaBIOS regressions.
E.g. BIOS32 and INT 15h function 89h.
Indeed. In theory even the switch of the option rom loading should
work just fine. After migration old bios and roms are still in
memory, the next reboot will be the world switch to new seabios, new
roms, new way to deploy roms and everything.
Automagical "world switch" on reboot sounds like a nightmare. The VM
environment
should be stable during reboots and only change if requested by the user.
That's extremely difficult to support.
Isn't this what VMotion supports?
- Sebastian
