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>>>>> "Ian" == Ian Darwin <[EMAIL PROTECTED]> writes:
>> There is also an opensource alternative called "Xen":
>> http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html
>>
>> It requires a slightly customized kernel, but RedHat is incorporating
>> Xen into future releases of Fedora and RHE, and I imagine other
>> distros are as well.
>>
>>
Ian> Very interesting! Do you know if either VMware and Xen allow
Ian> access to raw hardware (such as digium boards) from within the
Ian> guest OS?
Yes.
VMware is really a guest application (with a couple of kernel patches
to windows or linux (previously NetBSD too)), that provides a lot of
hardware emulation. QEMU is the closest equivalent, really.
VMware has some direct PCI stuff. I don't know how much these days.
Xen is really a layered approach.
+---------+
| appl. |
+---------+
| kernel |
+---------+
|hyperviso|
+---------+
The "host" Operating system is just a Xen (called Xen0) that happens
to be be allowed access to real hardware. Xen lets other guests have PCI
access, but the devices can't be shared.
If you set this up, I'd like to know if Xen provides enough RTC/USB
stuff such that the ztdummy/etc. timing stuff can work without any
additional hardware.
We (Xelerance) are building virtual-collaboration boxes
(SCM,IRC/IM,VPN,lists,VoIP,etc.) for developer communities. Up until now we
have believed that we will have centralize the VoIP on a single piece of
real hardware.
- --
] ON HUMILITY: to err is human. To moo, bovine. | firewalls [
] Michael Richardson, Xelerance Corporation, Ottawa, ON |net architect[
] [EMAIL PROTECTED] http://www.sandelman.ottawa.on.ca/mcr/ |device driver[
] panic("Just another Debian GNU/Linux using, kernel hacking, security guy"); [
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