kvmfornfv -

Age	Commit message (Collapse)	Author	Files	Lines
2015-11-24	Make vfio MSI interrupt be non-threaded.	Yunhong Jiang	1	-1/+1
	Currently the vfio msi interrupt is kept as IRQ thread, this is not good for NFV scenerio because in NFV scenerio, we want to inject the interrupt to the guest asap. A threaded IRQ introduces schedule latency. However, this change is like a quick and dirty and may bring potential deadlock, because the spinlock_irqsave() from eventfd_signal() is preemptible in RT kernel, which should not be held on IRQ context. But changing it to be raw_spinlock is bad because it will increase the latency a lot if the eventfd is accessed by user space. The deadlock should be ok since for vfio MSI handler is purely kernel story and the lock is a per-eventfd lock and seems no one else is using it for the vfio msi scenario. Upstream status: discussion https://lkml.org/lkml/2015/10/26/764 Change-Id: Ie4405a5b568aa75ca8c3481eeeea228a486b9794
2015-08-04	Add the rt linux 4.1.3-rt3 as base	Yunhong Jiang	21	-0/+8469
	Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>