moondefer Posted February 25, 2016 #1 Posted February 25, 2016 Hello Someone know if this is possible to enable IOMMU for do passthrough with Virtualbox please ? I have this processor : OK for VT-D and VT-X http://ark.intel.com/fr/products/80811/ ... o-3_90-GHz I have this motherboard : OK for VT-D http://www.asrockrack.com/general/produ ... ifications I tried to use this tutorial : https://www.virtualbox.org/manual/ch09. ... assthrough I haved try to modified my syslinux.cfg after read this infos : https://github.com/andy928/xpenology/bl ... meters.txt AND http://lime-technology.com/forum/index. ... ic=40683.0 APPEND root=/dev/md0 ihd_num=0 netif_num=4 syno_hw_version=DS3615xs ........................ loglevel=0 vga=0x305 TO APPEND intel_iommu=on iommu=pt root=/dev/md0 ihd_num=0 netif_num=4 syno_hw_version=DS3615xs ......................... loglevel=0 vga=0x305 But same with this line no success too. And if i wrote "dmesg | grep -e IOMMU -e DMAR" in ssh console i have this answer DiskStation2> dmesg | grep -e IOMMU -e DMAR [ 0.000000] ACPI: DMAR 00000000dd9049e8 00080 (v01 INTEL BDW 00000001 INTL 00000001) [ 39.297358] vboxpci: IOMMU not found (not compiled) DiskStation2> AND with dmesg : [ 37.268790] vboxdrv: Found 4 processor cores [ 37.284869] vboxdrv: TSC mode is Invariant, tentative frequency 3492211717 Hz [ 37.284870] vboxdrv: Successfully loaded version 5.0.14 (interface 0x00240000) [ 39.287197] VBoxNetFlt: Successfully started. [ 39.288766] VBoxNetAdp: Successfully started. [ 39.297354] VBoxPciLinuxInit [ 39.297358] vboxpci: pci-stub module not available, cannot detach PCI devices [ 39.297358] vboxpci: IOMMU not found (not compiled) [ 41.292265] SUPR0GipMap: fGetGipCpu=0x3 The only succefull thing than i can is to attach my nvidia card with ssh console : VBoxManage modifyvm "Windows 7 Sp1 x64" --pciattach 01:00.0@01:05.0 Where 01:00.0 is the correct address than i obtain after wrote lspci in ssh console. But after the VM can't boot with message : Failed to open physical device: not existing, or not available (VERR_ACCESS_DENIED) And i must use --pcidetach for boot again. So IOMMU not found (not compiled) !!!!!!!! and pci-stub module is not available this is needeed too in the virtualbox tutorial. I use the last xenoboot, his kernel don't have IOMMU compiled in ? How i can enable IOMMU for do passthrough with virtualbox please ? THANKS for help.
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