[SeaBIOS] [PATCH 3/3] Take in account hot(un)plugged cpus on reboot

[Vasilis Liaskovitis]

Hi,

On Tue, Mar 13, 2012 at 11:16:51AM +0100, Igor Mammedov wrote:
> >>What if qemu doesn't have 0xaf00 (like current upstream)?
> >>cfg_have_acpi_cpus_map is just a flag that allows to detect if qemu
> >>provides 0xaf00. This way it would be possible for seabios to work with
> >>old and new versions of qemu without breaking anything.
> >>
> >If QEMU will update cmos cpu count on cpu (un)plug we will not have to
> >introduce new PV interface to telll SeaBIOS about 0xaf00.
> 
> But we will have to introduce it anyway in future for correct building of
> mp/acpi/smbios tables. So why not do it now and be ready later for patches
> to mp/acpi/smbios tables.

This sounds reasonable in principle. I am not sure about mp/smbios tables, but
note that ACPI SRAT tables already use PV Interface qemu_cfg_get_numa_data. 

thanks,

- Vasilis