linux-kernel - Re: [kvm-devel] gcc + kvm + 64 bit ? confused :-/

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Message-ID: <4694A736.5000608@qumranet.com>
Date:	Wed, 11 Jul 2007 12:47:34 +0300
From:	Avi Kivity <avi@...ranet.com>
To:	Benjamin Budts <benjamin.budts@...rlet.be>
CC:	kvm-devel@...ts.sourceforge.net, Andi Kleen <andi@...stfloor.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [kvm-devel] gcc + kvm + 64 bit ? confused :-/

Benjamin Budts wrote:
> Hi all,
>
> question...
>
> I'm a bit confused using the -march=xxx options for gcc when using a 
> kernel virtual machine...
> Getting errors on smp when using the -march=nocoma for gcc... possibly 
> because smp is not fully supported yet I suppse.
>
> I guess my question is, when installing kvm, is the virtual machine 64 
> bit capable or should I install 32 bit OS ?
>   

kvm supports 64-bit and 32-bit guests if running on a 64-bit host.

> I installed an amd64 debian image and it seems to be running 
> fine...except for the problem mentioned above.
>
> And what type of architecture do i have to mention with gcc in a kvm ? 
> march ... arch...
>   

Please post the errors.

-- 
error compiling committee.c: too many arguments to function

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