[pve-devel] [PATCH docs 1/2] pcie-passthrough: note that iommu activation is not always necessary

Dominik Csapak d.csapak at proxmox.com
Fri May 20 10:43:24 CEST 2022

especially on newer kernels

Signed-off-by: Dominik Csapak <d.csapak at proxmox.com>
 qm-pci-passthrough.adoc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/qm-pci-passthrough.adoc b/qm-pci-passthrough.adoc
index fa6ba35..5ef325d 100644
--- a/qm-pci-passthrough.adoc
+++ b/qm-pci-passthrough.adoc
@@ -49,8 +49,9 @@ First, the IOMMU support has to be enabled in your BIOS/UEFI. Most often, that
 options is named `IOMMU` or `VT-d`, but check the manual for your motherboard
 for the exact option you need to enable.
-Then, the IOMMU has to be activated on the
+Then, the IOMMU might need to be activated on the
 xref:sysboot_edit_kernel_cmdline[kernel commandline].
+(On newer kernels, this should not be necessary.)
 The command line parameters are:

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