Hi Wing,
According to SAL specification 3.2.5 OS_OOT_RENDEZ,
"If OS_BOOT_RENDEZ returns a processor to the SAL using BR0, SAL will
re-enter the spin loop awaiting a wake-up by the BSP."
I guess that the windows installer uses only two cpus. The other cpus
kill themselves and never be revived (until reboot).
I have no idea why the other cpus are waken up once...
Generally speaking, too many cpus might be useless for installing OS.
Thanks,
Kouya
Zhang, Xing Z writes:
> Hi Kouya and Tristan:
> I still have a question. After "11.XEN stops the vcpu", APs wait in
> Xen, how does BSP wake up them again? I don't think BSP will send an IPI to
> them again.
> In windows, seems BSP will wait a very short time for AP waking up. Whiles
> APs waked up, they will fall into a loop to wait another times waking up by
> BSP.
> But this time, BSP use memory semaphore to do that but not an IPI.
> En, maybe something I lost, hope your comments.
>
> Good good study,day day up ! ^_^
> -Wing(zhang xin)
>
> OTC,Intel Corporation
>
> >-----Original Message-----
> >From: xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx
> >[mailto:xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Kouya
> >SHIMURA
> >Sent: 2007
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