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Re: [Xen-devel] Status of ioemu code in unstable?

To: Anthony Liguori <aliguori@xxxxxxxxxx>
Subject: Re: [Xen-devel] Status of ioemu code in unstable?
From: John Byrne <john.l.byrne@xxxxxx>
Date: Wed, 20 Jul 2005 12:15:12 -0700
Cc: Arun Sharma <arun.sharma@xxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
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Anthony Liguori wrote:
John Byrne wrote:

There appears to be VNC support in qemu which I assume will allow you to see both the text and graphics (X) mode of the emulated console. If so, is there a way to achieve this with a para-virtualized kernel?

There is an item on the TODO list to implement a para-virtualized framebuffer. That would provide this sort of functionality. I don't know if anyone is actively working on it but I know there's at least been some discussion abou tit.


Anthony Liguori


A few more questions. Does the VGA emulation require VT-x? (Qemu has been around for a while, so I suspect not.) Could the xen console changes be removed and a consistent model for the console be used? (I'd guess the console was done the way it was because something was needed and it was easiest to do it the way it is done, but is it necessary now that the emulation code is available?) If there is a requirement that the text mode console talk via a xen channel to the xen tools, can it be done in addition to the emulation?

John Byrne

My undertanding is that the xen changes to the Linux kernel include changes to the console driver to talk to the xen tools and that is you want and X server, you run Xvnc. So, looking at the text console and the X server require different tools.

If I were trying to manage virtual machines, I'd want a solution that didn't care about what kind of kernel I was running.

John Byrne

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