From: Sheng Yang Date: Fri, 31 Oct 2008 04:37:41 +0000 (+0800) Subject: KVM: Enable Function Level Reset for assigned device X-Git-Tag: v2.6.29-rc1~539^2~104 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6eb55818c043b097c83828da8430fcb9a02fdb89;p=pandora-kernel.git KVM: Enable Function Level Reset for assigned device Ideally, every assigned device should in a clear condition before and after assignment, so that the former state of device won't affect later work. Some devices provide a mechanism named Function Level Reset, which is defined in PCI/PCI-e document. We should execute it before and after device assignment. (But sadly, the feature is new, and most device on the market now don't support it. We are considering using D0/D3hot transmit to emulate it later, but not that elegant and reliable as FLR itself.) [Update: Reminded by Xiantao, execute FLR after we ensure that the device can be assigned to the guest.] Signed-off-by: Sheng Yang Signed-off-by: Avi Kivity --- Reading git-diff-tree failed