[vbox-dev] Guest/Host Communication

kernalist kernalist at yahoo.com
Tue May 4 17:19:19 GMT 2010

Performance wise, is using HGCM still a good idea if you want to transmit a lot of data from the guest to the host? Or would it be more efficient to use some other means?

Thank You.

--- On Wed, 4/21/10, Klaus Espenlaub <Klaus.Espenlaub at Sun.COM> wrote:

> From: Klaus Espenlaub <Klaus.Espenlaub at Sun.COM>
> Subject: Re: [vbox-dev] Guest/Host Communication
> To: "kernalist" <kernalist at yahoo.com>
> Cc: vbox-dev at virtualbox.org
> Date: Wednesday, April 21, 2010, 2:33 PM
> kernalist wrote:
> > Hi, I was wondering if VirtualBox provides some
> mechanism for guest and host to communicate: i.e. shared
> memory, or what not?
> > 
> > Since VirtualBox offers bi-directional clipboard, such
> mechanism is possible to implement if it does not exist
> already (no?). 
> The most frequently used mechanism is "HGCM", the
> host-guest communication manager. Clipboard sharing and
> other features are implemented this way.
> There are quite a number of examples in the source code,
> but I think there is not that much documentation besides the
> source.
> Klaus


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