This might not be something you want to mess with, but if you have
VT-D or IOMMU capability, you should be able to pass a PCI card through to
your guest, and I believe you can still get a PCI card that has serial
ports. It may also be more plausible to make PCI passthrough work without
those than to add a second virtual one, but it should be noted that doing so
would be a security risk. It should also be possible to somehow use serial
ports over the network, that may not work for you needs, but one example
would be to get a networked usb hub and connect to it, connecting usb ->
serial adapter ports to it. I don't know if you'll be able to find one that
meets your needs, though, I have seen hit and miss functionality using usb
-> serial adapter ports for various serial functions. I can't guarantee
that any of these ideas would work, but they might be worth a shot.
Dustin
-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of David Griswold
Sent: Saturday, May 09, 2009 23:48
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Need to Access 2 Serial Ports in HVM Win 2K3 server.
Here is my setup - CentOS 5.2, fully yum-updated and Xen 3.0.3. I have a
working Windows 2003 Server HVM that has access to one serial port via
emulation (serial="/dev/ttySXX in the domU config file.) I have tried,
without success, to give two serial ports to the HVM by modifying the config
file as follows:
serial = "/dev/ttys0"
serial = "/dev/ttys1"
(this did nothing - no serial ports in the HVM - I realize now this is the
wrong syntax)
or
serial = [ "/dev/ttys0", "/dev/ttys1" ]
This is the correct syntax, but the HVM won't start.
I have googled this until my eyes have bled, and the conclusion I have come
to is that the binaries are complied to support just one serial port per
HVM. So here is my questions: Can I modify the config and recompile the
source for xen and/or qemu to provide more than one serial port per HVM.
If I can just get someone to point me in the right direction, I would
greatly appreciate it.
Thanks,
David
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