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.

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