October 26, 201510 yr Hi . I'm trying existing hardware for possible unraid VM box but for me it only make sense if I can pass GPU. Model: Custom M/B: ASUSTeK Computer INC. - M2N32-SLI DELUXE CPU: AMD Phenom II X4 965 @ 3485 HVM: Enabled IOMMU: Disabled Cache: 128 kB, 512 kB Memory: 2048 MB (max. installable capacity 16 GB) Network: eth0: 1000Mb/s - Full Duplex Kernel: Linux 4.1.7-unRAID x86_64 Virtualization in BIOS is enabled. GPU passthrough in VM settings not available. Another config I've tried was Asus P8P67 Pro + i5 2500k with same results. I've found out that i5 2500k is only VT-x capable. The question : is GPU passthrough not available because limitations in hardware or am I missing something?
October 26, 201510 yr I'm not sure if your CPU is AMD-V or AMD-Vi capable. For pass through to work, it has to be AMD-Vi. AMD is not as good as Intel when it comes to posting specs on their website. It doesnt look like there are any options in the bios of the M2N32-SLI board to enable IOMMU (AMD-Vi), so most likely doesn't support AMD-Vi. On the P8P67 board you are limited by the CPU not supporting vt-d. I don't think the board either supports vt-d from the forums threads popping up searching for it on google. You can check your bios if you find a choice to enable vt-d in the chipset section, if not it most likely doesn't support it.
October 27, 201510 yr Author Thanks for reply. Both motherboards have an option to enable virtualization but nothing about IOMMU (AMD-Vi or VT-d) so it looks like I'm out of luck.
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