Message-ID: <453BBB41.4070905@qumranet.com>
Date: Sun, 22 Oct 2006 20:41:05 +0200
From: Avi Kivity <avi@qumranet.com>
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To: Arnd Bergmann <arnd@arndb.de>
CC: Christoph Hellwig <hch@infradead.org>, Muli Ben-Yehuda <muli@il.ibm.com>,
       linux-kernel <linux-kernel@vger.kernel.org>,
       Anthony Liguori <aliguori@us.ibm.com>,
       Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [PATCH 0/7] KVM: Kernel-based Virtual Machine
References: <4537818D.4060204@qumranet.com> <20061022175609.GA28152@infradead.org> <453BB1B0.7040500@qumranet.com> <200610222036.03455.arnd@arndb.de>
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Arnd Bergmann wrote:
> On Sunday 22 October 2006 20:00, Avi Kivity wrote:
>   
>> Existing installations?
>>
>> Dropping 32-bit host support would certainly kill a lot of #ifdefs and
>> reduce the amount of testing needed.  It would also force me to upgrade
>> my home machine.
>>     
>
> Ok, but if you radically change the kernel<->user API, doesn't that mean
> you have to upgrade in the same way? 

No, why? I'd just upgrade the userspace.  Am I misunderstanding you?

> The 32 bit emulation mode in x86_64
> is actually pretty complete, so it probably boils down to a kernel upgrade
> for you, without having to touch any of the user space.
>   

For me personally, I don't mind.  I don't know about others.

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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