linux-kernel - Re: Intel x86 Dual Core & Linux AMP

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Message-ID: <496CE1EF.3090005@sundmangroup.com>
Date:	Tue, 13 Jan 2009 19:48:15 +0100
From:	Matias <linux@...dmangroup.com>
To:	"H. Peter Anvin" <hpa@...or.com>, Bryon Roche <kain@...n.org>
CC:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: Intel x86 Dual Core & Linux AMP

Ok, thanks for your answers!
I have been working with PowerPC processors in the past and looking at 
Freescale's 8641D it is possible to boot two different kernels on it's 
both cores.

Cheers // Matias

H. Peter Anvin skrev:
> Matias wrote:
>   
>> Is there a way to boot a normal standard home x86 dual core PC with two
>> different Linux Kernels without a hypervisor?
>> The idea is of course to give the Kernels their own address space and
>> their own rootfile systems, the devices would be unique for each kernel
>> etc.
>>
>> Can this be done with a standard BIOS and GRUB/LILO?
>>     
>
> No.  There are way too many shared resources, such as address space and
> interrupt system.  You need a central resource to arbitrate those
> resources, i.e. a hypervisor.
>
> 	-hpa
>
>   
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