[SeaBIOS] [PATCH 0/3] Fix hang in smp_probe on reboot after cpu hotplug

[Igor Mammedov]

On 03/13/2012 01:18 AM, Kevin O'Connor wrote:
> On Sat, Mar 10, 2012 at 12:47:25PM +0100, Igor Mammedov wrote:
>>    - Halt if number of started cpus are more then expected
>>    - Allow bios to detect if qemu has cpus status map for acpi hotplug
>>    - Take in account hot(un)plugged cpus on reboot
>
> Currently, the seabios code in acpi.c and mptable.c assume the first
> CountCPUs of MaxCountCPUs are on.  Your patches update the reboot cpu
> detection, but they don't update the reporting of online cpus in the
> bios tables that are subsequently built.

I'm planing on fixing tables creation later when hot-plugging consecutive
cpus is in upstream qemu and I'll be working on nonconsecutive cpu (un)plug.

Goal of this patches is to fix hang after reboot if cpu(s) were hot-pluged.

>
> -Kevin

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  Igor