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Re: [Qemu-devel] [ANNOUNCE] qemu-test: a set of tests scripts for QEMU

From: Anthony Liguori
Subject: Re: [Qemu-devel] [ANNOUNCE] qemu-test: a set of tests scripts for QEMU
Date: Thu, 29 Dec 2011 10:53:25 -0600
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20110922 Lightning/1.0b2 Thunderbird/3.1.15

On 12/29/2011 10:46 AM, Avi Kivity wrote:
On 12/29/2011 06:26 PM, Anthony Liguori wrote:
I don't want to write a TCP/IP stack.  We aren't just grabbing a
random distro kernel.  We're building one from scratch configured in a
specific way.

How does that help?

Not sure I understand the question.

In what way is your specifically configured kernel's TCP stack better
than the random distro's kernel's?

I firmly believe that with qtest we'll end up eventually building a libOS to make it easier to write qtest tests.

Overtime, that libOS will become increasingly complex up until the point where it approaches something that feels like an actual OS. Effort spent developing libOS is a cost to building test cases.

By using Linux and a minimal userspace as our libOS, we can avoid spending a lot of time building a sophisticated libOS. If we need advanced libOS features, we just use qemu-test. If it's just a matter of poking some registers on a device along, we just use qtest.

Guest neutral tests that are meant to run on Linux, Windows, etc. are in a completely different ballpark.


Anthony Liguori

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