From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: "M.Thomas Frederiksen"
<mahasamoot-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: Could a dirver allow Windows to make Linux system calls?
Date: Wed, 07 Mar 2007 16:41:32 +0200 [thread overview]
Message-ID: <45EECF1C.3020503@qumranet.com> (raw)
In-Reply-To: <loom.20070307T141643-495-eS7Uydv5nfjZ+VzJOa5vwg@public.gmane.org>
M.Thomas Frederiksen wrote:
> Given that the guest is a process on Linux, couldn't it use Linux system calls
> like any other Linux process?
No, system calls on the guest go to the guest kernel.
> For example, could a driver be added to Windows,
> so that Windows could use the same system call that X windows does to get access
> to the video card?
>
kvm exposes a hypercall mechanism which allows a guest driver to call
the host. You could use that to tunnel opengl commands to the display.
See http://www.cs.toronto.edu/~andreslc/xen-gl/ for an example.
--
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prev parent reply other threads:[~2007-03-07 14:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-07 13:27 Could a dirver allow Windows to make Linux system calls? M.Thomas Frederiksen
[not found] ` <loom.20070307T141643-495-eS7Uydv5nfjZ+VzJOa5vwg@public.gmane.org>
2007-03-07 14:41 ` Avi Kivity [this message]
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