From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gordan Bobic <gordan@bobich.net>
Subject: Device Reset on Nvidia GPUs
Date: Fri, 15 Nov 2013 12:18:39 +0000
Message-ID: <87b7d4387d7ab0bbb220efa864170381@mail.shatteredsilicon.net>
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 I've noticed that nouveau driver has a sysfs reset implemented
 (although I'm not sure whether it is just a stub or whether it
 does anything).

 Now, I fully understand that this is not actually necessary,
 based purely on empirical evidence:

 My ATI cards reliably crash the host when the domU the are passed
 to is rebooted, and the xen-pciback driver does have the sysfs
 reset implemented for ATI cards.

 OTOH, my (modified) Nvidia cards handle domU reboots perfectly
 and the xen-pciback driver has no sysfs reset implementation
 for those.

 So I'm kind of torn between:
 1) It's not broken so don't even think about trying to fix it.
 2) Since FOSS reset implementation seems to exist, it might be
 handy to port it into the xen-pciback feature list (caveat:
 this may impact 1), which would be embarrasing).

 Thoughts?

 Gordan