On Fri, Apr 03, 2020 at 07:37:10PM +0300, Georgios wrote:
>
> Hi.
> Im trying to set intel_iommu=on on kernel parameters at grub but for
> some reason it doesnt work.
>
> I edit /etc/default/grub file and i add the parameter.
>
> then i run grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg and then i
> reboot.
>
> when i run virt-host-validate i get
>
> QEMU: Checking if IOMMU is enabled by kernel: WARN (IOMMU appears to be
> disabled in kernel. Add intel_iommu=on to kernel cmdline arguments)
>
> when i edit the grub menu durring boot and i put intel_iommu=on and the
> i run again virt-host-validate i get
>
> QEMU: Checking if IOMMU is enabled by kernel: PASS
>
>
> any ideas?
This is a libvirtd KVM machine? Are you sure you're using UEFI?
--
Jonathan Billings <billings@xxxxxxxxxx>
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