Thanks to Bronek and everyone else who gave me tips on solving this networking issue. I ditched Network Manager, and just used systemd-networkd and this worked.
On Tue, Apr 19, 2016 at 4:40 AM, Bronek Kozicki <b...@spamcop.net> wrote: > First xml is a network definition file - as said earlier, they are one way > for managing libvirt networking, which I do not use. Meaning, you do not > need it if you want to do it "Bronek's way". However you may need to ensure > that qemu helper is defined in libvirt configuration - look my messages > from past few days. > > Second xml is part of VM definition, a sibling to hostdev nodes etc. You > can create this part in virt-manager GUI, no need to edit xml by hand - > just make sure to select the bridge you have created. > > > > B. > > > > *From: *Garland Key > *Sent: *Monday, 18 April 2016 23:41 > *To: *Bronek Kozicki > *Cc: *vfio-users > *Subject: *Re: [vfio-users] [FEEDBACK NEEDED] Rewriting the Arch wiki > article > > Sorry to pester you with so many questions. I appreciate your help. > > *Where should the following configuration be placed? What is the config > filename and path?* > > > I've done the same. Bridge created with NM and used by the VM. You > should be able to just select the bridge device. That's the resulting > XML for me: > > <network connections='1'> > <name>default</name> > <uuid>278badf4-d33e-493e-b604-083b3dcc2804</uuid> > <forward mode='bridge'/> > <bridge name='br0'/> > </network> > > > > *Is this placed into your VM XML via virsh?* > > <interface type='bridge'> > <mac address='52:54:01:hi:dd:en'/> > <source bridge='br0'/> > <model type='virtio'/> > <driver queues='8'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x18' > function='0x0'/> > </interface> > > On Mon, Apr 18, 2016 at 5:57 PM, Bronek Kozicki <b...@spamcop.net> wrote: > >> For me setting up networking with an existing bridge "just works", I >> wrote few days ago on this lis how I've set it up on my machine. Hint: I do >> not use virsh "networks" capabilities at all - none defined (undefined the >> default one) and none started. Just my, manually crafted bridge, explicitly >> used in VM definitions. >> >> >> B. >> >> *From: *Garland Key >> *Sent: *Monday, 18 April 2016 22:21 >> *To: *Nicolas Roy-Renaud; vfio-users >> *Subject: *Re: [vfio-users] [FEEDBACK NEEDED] Rewriting the Arch wiki >> article >> >> I'm an intermediate Linux user, so this this stuff can be complicated to >> me sometimes. Right now I'm having trouble setting up a network bridge >> that virt-manager will recognize. I've arrived at the conclusion that this >> simply isn't possible on Arch. That said, I can't find any documentation >> on how to convince qemu to use an existing network bridge. If you're >> willing, please add this information as well. If you already know how, any >> pointers would be greatly appreciated. >> >> Best, >> Garland >> >> On Mon, Apr 18, 2016 at 5:14 PM, Garland Key <david.garland....@gmail.com >> > wrote: >> >>> Please add what to do if you have two identical GPUs. Here is exactly >>> what is needed to make it work. >>> >>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - >>> - - - - >>> >>> */etc/modprobe.d/vfio.conf* >>> >>> install vfio-pci /sbin/vfio-pci-override-vga.sh >>> options vfio-pci disable_vga=1 allow_unsafe_interrupts=1 >>> >>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - >>> - - - - >>> >>> */sbin/vfio-pci-override-vga.sh* >>> >>> #!/bin/sh >>> >>> for i in $(find /sys/devices/pci* -name boot_vga); do >>> if [ $(cat $i) -eq 0 ]; then >>> GPU=$(dirname $i) >>> AUDIO=$(echo $GPU | sed -e "s/0$/1/") >>> echo "vfio-pci" > $GPU/driver_override >>> if [ -d $AUDIO ]; then >>> echo "vfio-pci" > $AUDIO/driver_override >>> fi >>> fi >>> done >>> >>> modprobe -i vfio-pci >>> >>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - >>> - - - - >>> >>> Add the following to */etc/mkinitcpio.conf* and then run *mkinitcpio -p >>> linux* >>> >>> BINARIES="/usr/bin/find /usr/bin/dirname" >>> FILES="/sbin/vfio-pci-override-vga.sh" >>> >>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - >>> - - - - >>> >>> *Tested Hardware:* >>> >>> Motherboard: Asus Sabertooth X99 >>> <https://www.asus.com/us/Motherboards/SABERTOOTH_X99/> >>> CPU: Intel Core i7-5930K >>> <http://ark.intel.com/products/82931/Intel-Core-i7-5930K-Processor-15M-Cache-up-to-3_70-GHz> >>> GPU 1: GIGABYTE GeForce GTX 970 4GB G1 Gaming OC Edition >>> <http://www.newegg.com/Product/Product.aspx?Item=N82E16814125684> >>> GPU 2: GIGABYTE GeForce GTX 970 4GB G1 Gaming OC Edition >>> <http://www.newegg.com/Product/Product.aspx?Item=N82E16814125684> >>> RAM: 32GB Corsair Dominator Platinum DDR4 (CMD16GX4M2A2666C15) >>> <http://www.newegg.com/Product/Product.aspx?Item=N82E16820233709> >>> >>> >>> On Tue, Apr 12, 2016 at 3:36 PM, Nicolas Roy-Renaud < >>> nicolas.roy-renau...@ens.etsmtl.ca> wrote: >>> >>>> I'm currently planning a full rewrite of the article on Arch wiki >>>> about PCI passthroughs >>>> <https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF> and, >>>> as per Arch wiki guidelines, I'm supposed get the approval of other users >>>> before undergoing such comlex edits. If anyone on this mailing list is an >>>> Arch wiki collaborator or frequent user, I would appreciate if you could >>>> give >>>> me some feedback on the planned structure >>>> <https://wiki.archlinux.org/index.php/Talk:PCI_passthrough_via_OVMF#Page_rewrite> >>>> and propose additional sections or potential user mistakes to highlight. My >>>> primary objective here is to make most of what's on Alex Williamson's blog >>>> more straightforward and concise. >>>> >>>> I've already rewritten the first two sections ("Prerequisites" and >>>> "Setting up IOMMU"), and the rest of the article should essentially follow >>>> the same basic structure and style. Replies here or on the wiki's >>>> discussion page would be much appreciated. >>>> >>>> -Nicolas >>>> >>>> _______________________________________________ >>>> vfio-users mailing list >>>> vfio-users@redhat.com >>>> https://www.redhat.com/mailman/listinfo/vfio-users >>>> >>>> >>> >> >> > >
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