.IOMMU
-The IOMMU has to be activated on the kernel commandline. The easiest way is to
-enable trough grub. Edit `'/etc/default/grub'' and add the following to the
-'GRUB_CMDLINE_LINUX_DEFAULT' variable:
+The IOMMU has to be activated on the
+xref:sysboot_edit_kernel_cmdline[kernel commandline].
+
+The command line parameters are:
* for Intel CPUs:
+
amd_iommu=on
----
-[[qm_pci_passthrough_update_grub]]
-To bring this change in effect, make sure you run:
-
-----
-# update-grub
-----
.Kernel Modules
Host Configuration
^^^^^^^^^^^^^^^^^^
-In this case, the host cannot use the card. There are two methods to achieve
+In this case, the host must not use the card. There are two methods to achieve
this:
* pass the device IDs to the options of the 'vfio-pci' modules by adding
the vendor and device IDs obtained by:
+
----
-# lcpci -nn
+# lspci -nn
----
* blacklist the driver completely on the host, ensuring that it is free to bind
xref:qm_pci_passthrough_update_initramfs[update the `initramfs`] again and
reboot after that.
+.Verify Configuration
+
+To check if your changes were successful, you can use
+
+----
+# lspci -nnk
+----
+
+and check your device entry. If it says
+
+----
+Kernel driver in use: vfio-pci
+----
+
+or the 'in use' line is missing entirely, the device is ready to be used for
+passthrough.
+
[[qm_pci_passthrough_vm_config]]
VM Configuration
^^^^^^^^^^^^^^^^
with 5th, 6th and 7th generation Intel Core Processors, as well as E3 v4, E3
v5 and E3 v6 Xeon Processors.
-To enable it for Intel Graphcs, you have to make sure to load the module
-'kvmgt' (for example via `/etc/modules`) and to enable it on the Kernel
-commandline. For this you can edit `'/etc/default/grub'' and add the following
-to the 'GRUB_CMDLINE_LINUX_DEFAULT' variable:
+To enable it for Intel Graphics, you have to make sure to load the module
+'kvmgt' (for example via `/etc/modules`) and to enable it on the
+xref:sysboot_edit_kernel_cmdline[Kernel commandline] and add the following parameter:
----
i915.enable_gvt=1
After that remember to
xref:qm_pci_passthrough_update_initramfs[update the `initramfs`],
-xref:qm_pci_passthrough_update_grub[update grub] and
-reboot your host.
+and reboot your host.
VM Configuration
^^^^^^^^^^^^^^^^