maybe a dump Question, but did you check if its enabled in the BIOS ? ;)


On 10/1/18 11:46 AM, wrote:
> My first attempt at installing Qubes brought up a dialog indicating AMD-Vi 
> and interrupt remapping wasn't available. I know my hardware supports the 
> necessary virtualization extensions (AMD FX-8120 on a 990FX mobo), so further 
> investigation suggested that the bios was probably buggy.
> I updated the bios but still no luck, so I tried a manual procedure as 
> described at [1]: I ran a recent live linux distro from a USB key and 
> confirmed that interrupt remapping was disabled by default due to this BIOS 
> bug. I then figured out the IOMMU and SMBus addresses using the described 
> procedure and managed to get the live linux to boot with interrupt remapping 
> and virtualization enabled as reported by dmesg.
> I tried the same ivrs_ioapic mapping procedure for the Qubes installer, but 
> it still raises that dialog saying no interrupt remapping, AMD-Vi, etc. 
> Running dmesg in the Qubes installer console reports only that IOMMUv2 is not 
> available, which the live linux also reported, but no other errors. The dmesg 
> output is a little different though, so perhaps I missed something.
> Any suggestions on what to do next?
> [1]
Kind Regards 
Jonathan Seefelder
CryptoGS IT-Security Solutions
Hofmark 43b
D-84564 Oberbergkirchen
Phone: +49 8637-7505
Fax: +49 8637-7506

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