2007-08-22 14:53:59

by Xu Yang

Subject: how is the boot process of the multicore system

Hi everyone,

I am just wondering how is the boot process of the multicore system exactly.
let's say there are 4 cores , what is the booting sequence? and how
does linux realise the booting process?


anyone has any idea?

thanks

regards,

Yang

2007-08-22 15:25:53

by Alan

Subject: Re: how is the boot process of the multicore system

On Wed, 22 Aug 2007 16:53:41 +0200
"Xu Yang" <[email protected]> wrote:

> Hi everyone,
>
> I am just wondering how is the boot process of the multicore system exactly.
> let's say there are 4 cores , what is the booting sequence? and how
> does linux realise the booting process?

For PC type systems read the Intel MP 1.4 specification, available on the
intel developer web site

2007-08-22 15:37:30

by Xu Yang

Subject: Re: how is the boot process of the multicore system

thanks,

then what about the arm-realview-mpcore?

I found that in mpcore there are 4 cores, the cpu0 boots first, and
the others wait in the WFI(wait for interrupt) state. as far as i know
it is the boot monitor set these cores into WFI state. I just wonder
what happens after these cores get the interrupt. they jump to the
kernel? or sth eles? if they jump to the kernel, to what address? and
these jump instructions are in the boot monitor?
sorry for so many questions....

thanks a lot.

2007/8/22, Alan Cox <[email protected]>:
> On Wed, 22 Aug 2007 16:53:41 +0200
> "Xu Yang" <[email protected]> wrote:
>
> > Hi everyone,
> >
> > I am just wondering how is the boot process of the multicore system exactly.
> > let's say there are 4 cores , what is the booting sequence? and how
> > does linux realise the booting process?
>
> For PC type systems read the Intel MP 1.4 specification, available on the
> intel developer web site
>