Hi Tim, this was about being prepared. It can be solution to make things more accessible for experiments and development work as I stated initially. I'd never (hope to) expect it to be used in productive environments.
One might argue, that if someone wants to get that far he could also build his own kernel. But then you could say that to about everything we package :-) So I thought since it really doesn't change anything without the kernel parm set we could provide it for the ease of Ubuntu users experimenting in that area. It also can ease testing since your environment just doesn't have to have so much special HW constraints. But if you still don't like it I can - for now - live with a refusal and we might wait until someone with a more tangible need for it comes up. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1634050 Title: Please enable CONFIG_VFIO_NOIOMMU Status in dpdk package in Ubuntu: Incomplete Status in linux package in Ubuntu: Confirmed Status in dpdk source package in Zesty: New Status in linux source package in Zesty: In Progress Bug description: Hi, for certain cases a user might want to use VFIO in NO IOMMU mode. This only enables it to be an option, it doesn't change things unless "enable_unsafe_noiommu_mode" is set. See this reference: https://patchwork.kernel.org/patch/7906971/ for more details. This is used for some setups of DPDK see this http://dpdk- guide.gitlab.io/dpdk-guide/setup/binding.html#vfio-no-iommu Usually the reason to pick vfio over uio is the isolation. But there are some cases where vfio is required for extra features but can't work unless NO-IOMMU mode is used. I watched the topic a while checking if there is some major "oh crap what have we done" but there was none. An since by only enabling it in the kernel it shouldn't change a lot I wanted to ask if you could enable this config in the kernel for Z*. Technically it would be nice to get it in Yakkety as well, but I think we should be fine only working forward and enabling it in the Z release. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dpdk/+bug/1634050/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
