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