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[Qemu-devel] Re: [kvm-devel] Réf. : Re: [PATCH][RFC] A llowing QEMU to
From: |
Daniel P. Berrange |
Subject: |
[Qemu-devel] Re: [kvm-devel] Réf. : Re: [PATCH][RFC] A llowing QEMU to directly executeadirectory (and storing command line options in it) |
Date: |
Sat, 1 Sep 2007 01:52:12 +0100 |
User-agent: |
Mutt/1.4.1i |
On Fri, Aug 31, 2007 at 10:13:11PM +0200, address@hidden wrote:
> I think passing only the directory name is better because it can be like a
> "black box" : the user don't have to know how it is inside. And it is much
> more simple to use "qemu my_pc" than "qemu -c my_pc/config".
If you need this incredible 'simplicity', a 1 line shell script can easily
provide it for you;
$ cat myqemu
#!/bin/sh
exec qemu -c $1/config
One of the great strengths of QEMU is its predictability - it may have a
huge number of command line args, but this is exactly what gives QEMU such
power & utility. It makes it very straightforward to build applications
around QEMU, and ensure it behaviours in a 100% reliable & predictable manner.
We should be wary of putting policy & heuristics into QEMU to turn it into
a 'black box' because that will compromise the use cases at which it currently
excels. A simple '-c' arg which takes a path to a config file is more than
sufficient, without needing heuristics to look for magical named files in
directories.
Dan.
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