linux-kernel - Re: [GIT PULL] Linux KVM tool for v3.7-rc0

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Message-ID: <CAPM=9twcHxUGgYUc27DV1AcYZbzKSbA1Bru8vK1kcWvcG0Jpkw@mail.gmail.com>
Date:	Sun, 21 Oct 2012 13:07:31 +1000
From:	Dave Airlie <airlied@...il.com>
To:	Borislav Petkov <bp@...en8.de>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Pekka Enberg <penberg@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...nel.org>, Avi Kivity <avi@...hat.com>,
	linux-kernel@...r.kernel.org, Christoph Hellwig <hch@...radead.org>
Subject: Re: [GIT PULL] Linux KVM tool for v3.7-rc0

On Sun, Oct 21, 2012 at 4:14 AM, Borislav Petkov <bp@...en8.de> wrote:
> On Sat, Oct 20, 2012 at 06:04:36PM +1100, Stephen Rothwell wrote:
>> So are there any compelling arguments from the proponents, or can
>> I remove this from linux-next (and have it removed from the tip
>> auto-latest branch)?
>
> FWIW, I gave this a run and I have to say, it works as advertized: I
> built it and ran it with the latest kernel and the thing simply boots
> the kernel. Even without a disk image - the simplest command is:
>
> $ ./lkvm run --kernel ../../arch/x86/boot/bzImage
>
> and it gets me a shell in the vm after a second.
>
> So the absolute advantage it gives kernel devs is that they can
> smoke-test whether their stuff boots in seconds.
>
> This is probably not helpful when enabling specific hw features but
> should be pretty helpful for generic arch stuff.

Why couldn't this script just be a wrapper around qemu?

I get the kvm developers developing features that isn't ideal, but for
the quick boot a kernel tests, I don't see why a well maintained qemu
wrapper isn't superior. I hate constructing qemu command lines, but a
script in the kernel repo seems like a good idea.

Dave.
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