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Shahinism
Paper Tape
Posts: 1
Registered: ‎07-24-2017
Location: US
Views: 715
Message 1 of 2

Does Lenovo IdeaPad 700-15ISK support vt-d virtualization technology?

In their ARK description, Intel admits that they support `vt-d` virtualization technology on i7-6700HQ Processor. But nowhere in Bios (version E5CN56WW), it has mentioned on how to enable it. The only related configuration seems to be named Virtualization which is enabled, but I can't confirm it by enabling IOMMU on my Linux kernel (nothing appears in `/sys/kernel/iommu_groups/` folder).

 

So I wanted to know if it supports this virtualization technology and if yes, how I can enable it?

 

Thank you

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Paper Tape
Posts: 2
Registered: ‎09-01-2017
Location: US
Views: 635
Message 2 of 2

Re: Does Lenovo IdeaPad 700-15ISK support vt-d virtualization technology?

Works for me. But, I'm not doing anything cool with it, like GPU passthrough over Xen. I have the same CPU and BIOS, and I think I enabled all virtualization in the BIOS.

I'm sure you've checked cpuinfo:

grep '^flags' < /proc/cpuinfo | grep vmx

... I get one line per thread indicating Intel virtualization is enabled ...

 

To check if you can DMAR:

dmesg | grep DMAR

... I get:

[ 0.000000] DMAR: IOMMU enabled

 

DMAR may be disabled by default. If you don't get DMAR in your dmesg, add the following to your boot line:

intel_iommu=on

 

Different distributions have different methods for editing the boot config, so I'll stop there.

 

 

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