[libvirt] [PATCH 4/4] virt-host-validate: check for intel_iommu=on cmdline flag

[Daniel P. Berrange]

On Thu, Oct 08, 2015 at 03:09:02PM -0400, Laine Stump wrote:
> On 10/07/2015 12:50 PM, Daniel P. Berrange wrote:
> >This looks for existance of /sys/firmware/acpi/tables/DMAR
> >as a reasonable hint that the BIOS support an Intel IOMMU.
> >
> >This file is only present if enabled in the BIOS, so the
> >check only does something if the BIOS is enabled but the
> >kernel has it disabled.
> >
> >TBD figure out a check for AMD too, which doesn't involve
> >grepping dmesg which might have already been purged.
> 
> I have a couple AMD machines, if you want anything tested.

I'll knock something up for AMD per Alex's recommendation and
then post another patch for that.

> 
> ACK with what's here though.

Regards,
Daniel
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