BIOS에서 svm 및 iommu를 활성화했지만 dmesg에서 "사용할 수 없음" 메시지가 나타납니다.
root@xen:~# dmesg |grep -i iommu
[ 0.000000] Command line: placeholder root=UUID=0b6a99ef-b56b-4d71-9f63-4895d0276674 ro nouveau.blacklist=1 amd_iommu=on iommu=pt iommu=soft iommu=1 pci-stub=10de:1401,10de:0fba
[ 0.000000] Kernel command line: placeholder root=UUID=0b6a99ef-b56b-4d71-9f63-4895d0276674 ro nouveau.blacklist=1 amd_iommu=on iommu=pt iommu=soft iommu=1 pci-stub=10de:1401,10de:0fba
[ 5.177737] AMD IOMMUv2 driver by Joerg Roedel <[email protected]>
[ 5.177744] AMD IOMMUv2 functionality not available on this system
BIOS 설정(모호해서 죄송합니다):
시스템 메시지:
root@xen:~# uname -a
Linux xen 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
root@xen:~# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04 LTS"
root@xen:~# dmidecode |grep -i product
Product Name: To be filled by O.E.M.
Product Name: 990FXA-UD5 R5
root@xen:~# grep Processor /proc/cpuinfo |tail -1
model name : AMD FX(tm)-8300 Eight-Core Processor
root@xen:~# grep iommu /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="nouveau.blacklist=1 amd_iommu=on iommu=pt iommu=soft iommu=1 pci-stub=10de:1401,10de:0fba
마더보드 BIOS를 업데이트해야 합니까? 현재 F3에서는 마더보드가 손상될 수 있으므로 가능하면 피하고 싶습니다.