Re: [Qemu-devel] [PATCH] Remote console access though socket

[Ed Swierk]

Daniel Veillard wrote:
> enclosed is a first version of a patch to allow remote access and control
> for QEmu instances, I'm not suggesting to apply it as is (though it seems
> to work in my limited testing) but would rather like to get comments back
> for choices I'm facing.

This sounds pretty nice. A few general comments:

A few weeks ago I wrote a qemu daemon manager. It's a pretty simple
script that manages multiple qemu processes, launching each one in an
instance of screen. screen does most of the dirty work of keeping
track of running processes, assigning a name to each process,
attaching to a process's console, terminating a process, etc. Of
course screen has many more features that we don't really need, but it
might be worth looking at screen as a model for implementing the
functions you describe.

The other problem my script deals with, which screen doesn't solve, is
managing resources like ports (for -redir) and network interface MAC
addresses (in cases where uniqueness matters), and providing some way
for the user to determine which resource has been assigned to a
particular qemu process.

If qemu provides access to its console via a socket, this is just
another resource that a manager can deal with, perhaps passing the
desired port number to qemu via the command line.

--Ed