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Re: [Xen-devel] Should Qemu monitor be enabled by default

  • To: "You, Yongkang" <yongkang.you@xxxxxxxxx>
  • From: "Christian Limpach" <christian.limpach@xxxxxxxxx>
  • Date: Tue, 10 Apr 2007 10:32:31 +0100
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Christian Limpach <Christian.Limpach@xxxxxxxxxxxxx>
  • Delivery-date: Tue, 10 Apr 2007 02:31:21 -0700
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On 4/10/07, You, Yongkang <yongkang.you@xxxxxxxxx> wrote:
We noticed you removed the Qemu's default monitor & serial console in changeset 14609. As 
we didn't use qemu serial console frequently and also has "xm console", it can be 
removed. But for qemu monitor, I think we'd better to keep it by default, it is because it 
has become the important function of HVM.

1. We have to use monitor to switch CD-ROM files. This is significant when 
installation with multi CDs.
2. We need to use monitor to send the short combined keys to HVM (e.g. ctrl-alt-delete, 
ctrl-alt-f2 etc.). This is a "couldn't dropped" feature of HVM. :)

So, how about adding it back?

Well, we can't change the default back, because that would not be secure.

There's xm block-configure which lets you switch CD-ROM files.

And there's a few things which could be done to further improve things:
- plumb through the monitor option to the domain config file and the
xend config file
- fix xm console so it can connect to the monitor pty
- add an xm send-key command


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