Okay, well, stumbled upon the following site:
http://www.nforcershq.com/forum/viewtopic.php?t=12269
The site gives instructions for setting up a boot entry that specifies the new HAL DLL that you want to use (extracting the new DLL and then using the /hal= switch to tell Windows to use that HAL). After you boot with that /hal option, Windows permanently installs the new HAL and then asks you to reboot. After the reboot, the new HAL is installed and the XEN drivers are getting the proper IRQs and functioning correctly.
Thanks for the help James & Dustin - just took a little pointing to get me going in the right direction.
-Nick
-----Original Message-----
From: Dustin Henning <Dustin.Henning@xxxxxxxxxxx>
Reply-To: Dustin.Henning@xxxxxxxxxxx
To: 'Nick Couchman' <Nick.Couchman@xxxxxxxxx>, james.harper@xxxxxxxxxxxxxxxx
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-users] GPL PV Intermittent Network Problems
Date: Tue, 11 Nov 2008 10:00:39 -0500
If you’re feeling bold and daring, just switch it, but have a backup handy. In some cases it will work, in others it won’t. There is good documentation out there, but I don’t have hand links to any of it. Here is what I am suggesting:
1) Device Manager
2) Right click on Advanced Configuration and Power Interface PC
3) Click Update Driver
4) Select Advanced (Install from a list or specific location)
5) Select Don’t Search. I will choose the driver to install
6) Uncheck the “Show compatible hardware” box if necessary (it probably isn’t)
7) Choose ACPI Uniprocessor PC
8) Proceed through the remaining steps and reboot
As I said, you should certainly have a backup ready, but I believe this should work (assuming XP/2003 or newer), I’m not sure it was that easy in 2000, my MCSE class back then said no, but could have been wrong. Good luck,
Dustin
From:xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Nick Couchman
Sent: Tuesday, November 11, 2008 09:52
To: james.harper@xxxxxxxxxxxxxxxx
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-users] GPL PV Intermittent Network Problems
Well, I've just stumbled upon another couple of things that seem to be causing the problem. First, in looking at the Computer type (Device Manager -> Computer Name -> Computer), the working ones all have "ACPI Uniprocessor PC" and the two that don't work have "Advanced Configuration and Power Interface (ACPI) PC." On the surface, this seems to be about the same - even looking at the driver version, date, etc., yields the same information. However, if I go to the Details tab of this device and look at "Hardware Ids," I see that the "Advanced Configuration...PC" shows "acpipic_up" whereas the "ACPI Uniprocessor PC" shows "acpiapic_up." So, the computer types are actually different, and, just like when you switch from a single processor to a multiprocessor configuration, Windows is incapable of picking up the change from a non-APIC (PIC, I guess??) machine (VM) to an APIC machine (VM), even though I've switched over the Xen configuration.
Furthermore, if I look at the Device Manager and view as "Resources by Type" and look at IRQs, the machine that is failing doesn't have ANY devices assigned an IRQ over 15 whereas the ones that work have a few other devices (besides the Xen ones) assigned IRQs over 15.
Guess it comes down to a HAL issue at this point - anyone have any good hints or documents for switching out the HAL?
-Nick
-----Original Message-----
From: James Harper <james.harper@xxxxxxxxxxxxxxxx>
To: Nick Couchman <Nick.Couchman@xxxxxxxxx>, xen-users@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-users] GPL PV Intermitent Network Problems
Date: Tue, 11 Nov 2008 21:29:23 +1100
Nick,
I have built a xenpci.sys that will tell Windows not to give it an IRQ
under 16. Other than testing that it doesn't crash I haven't given it
any other testing. You can download it at:
http://www.meadowcourt.org/downloads/xenpci.sys.no_irq_under_16.xp.bin
rename the downloaded file to xenpci.sys and copy it to
c:\windows\system32\drivers, then reboot.
I also have a windows 2003 version there.
If, for some reason, windows won't assign an irq > 16 to it then a boot
with /GPLPV will probably fail (bug check 0x7b), but you should still be
able to reboot without /GPLPV.
Let me know how it goes. If it boots, assigns an irq > 16, and your
stability problems go away, then I'll keep the fix in there.
Thanks
James
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