Em terça-feira, 2 de outubro de 2018 09:17:43 UTC-3, Sergio Matta  escreveu:
> Em segunda-feira, 1 de outubro de 2018 19:55:24 UTC-3, Sergio Matta  escreveu:
> > Em segunda-feira, 1 de outubro de 2018 16:04:34 UTC-3, naas...@gmail.com  
> > escreveu:
> > > Installation went fine except for a libxenlight config error of some 
> > > kind. I still can't enable IOMMU using either of the approaches described 
> > > in that Ubuntu thread, even though it successfully worked with raw Linux.
> > > 
> > > What boot parameters did you add? I have the earlier rev.1 Sabertooth 
> > > 990FX mobo that you have.
> > 
> > 
> > My mobo is rev.2, firmware 2901
> > I used (ivrs_ioapic[7]=00:14.0 ivrs_ioapic[8]=00:00.2). I am not using 
> > anymore and my qubes 4.0 is working fine.
> > 
> > But ubuntu forum has a solved solution with different ioapic:
> > Quick solution for Sabertooth 990FX (R1.0):
> > Edit file /etc/default/grub, find line "GRUB_CMDLINE_LINUX_DEFAULT=", edit 
> > it to look like:
> > Code:
> > GRUB_CMDLINE_LINUX_DEFAULT="quiet splash ivrs_ioapic[7]=00:14.0 
> > ivrs_ioapic[8]=00:00.1"
> > 
> > There are iommu info here too:
> > from Xen https://wiki.xen.org/wiki/VTd_HowTo
> > 
> > If you can not solve the iommu problem, change all vms to PV. Maybe this is 
> > the cause of libxenlight error. Change all vms to PV, including sys-net.
> > Later I will send you the commands to start networking.
> 
> My cpu is a AMD 1100T and PVH is not much more fast then PV.
> 
> If you want to test it without iommu:
> Change the VMs to PV, including sys-net and sys-firewall (qvm-prefs 
> yourvmname virt_mode PV)
> Using sys-firewall terminal do:
> sudo cp /etc/resolv2.conf /etc/resolv.conf (resolv2.conf has your preferred 
> nameservers)
> ping -c 2 10.137.0.8 (to create vif interface)
> sudo ip link set vif3.0 up
> sudo ip addr add 10.137.0.4//255.255.255.255 dev vif3.0
> sudo ip route add 10.137.0.8/255.255.255.255 dev vif3.0
> - Save the commands above in /rw/config/rc.local and make it executable 
> (chmod +x /rw/config/rc.local):
> Using sys-net terminal do:
> Save then in /rw/config/rc.local and make it executable:
> ip link set vif2.0 up
> ip addr add 10.137.0.3/255.255.255.255 dev vif2.0
> ip route add 10.137.0.4 dev vif2.0
> It should works.

PS: in the command "sudo ip route add 10.137.0.8/255.255.255.255 dev vif3.0", 
change the 10.137.0.8 to your correct VM IP

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