linux-kernel - Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around QEMU to test kernels

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Message-ID: <4EB7C82A.6020905@redhat.com>
Date:	Mon, 07 Nov 2011 12:59:38 +0100
From:	Kevin Wolf <kwolf@...hat.com>
To:	Pekka Enberg <penberg@...helsinki.fi>
CC:	"Ted Ts'o" <tytso@....edu>,
	Anthony Liguori <anthony@...emonkey.ws>,
	Avi Kivity <avi@...hat.com>, Pekka Enberg <penberg@...nel.org>,
	"kvm@...r.kernel.org list" <kvm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org List" <linux-kernel@...r.kernel.org>,
	qemu-devel Developers <qemu-devel@...gnu.org>,
	Alexander Graf <agraf@...e.de>,
	Blue Swirl <blauwirbel@...il.com>,
	Américo Wang <xiyou.wangcong@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around QEMU to test
 kernels

Am 07.11.2011 12:38, schrieb Pekka Enberg:
> On Mon, 7 Nov 2011, Kevin Wolf wrote:
>> Makes it a lot less hackable for me unless you want to restrict the set
>> of potential developers to Linux kernel developers...
> 
> We're not restricting potential developers to Linux kernel folks. We're 
> making it easy for them because we believe that the KVM tool is a 
> userspace component that requires the kind of low-level knowledge Linux 
> kernel developers have.
> 
> I think you're looking at the KVM tool with your QEMU glasses on without 
> realizing that there's no point in comparing the two: we only support 
> Linux on Linux and we avoid hardware emulation as much as possible. So 
> what makes sense for QEMU, doesn't necessarily translate to the KVM tool 
> project.

I'm not comparing anything. I'm not even referring to the virtualization
functionality of it. It could be doing anything else and it wouldn't
make a difference.

For KVM tool I am not much more than a mere user. Trying it out was
tedious for me, as it is for anyone else who isn't a kernel developer.
That's all I'm saying.

Making things easier for some kernel developers but ignoring that at the
same time it makes things harder for users I consider a not so clever
move. Just wanted to point that out; feel free to ignore it, your
priorities are probably different.

Kevin
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