From 4d318fb1cded028e2b69046c59279e41e1920621 Mon Sep 17 00:00:00 2001 From: Aaron Lauterer Date: Tue, 29 Oct 2024 17:55:43 +0100 Subject: [PATCH] pci-passthrough: reword iommu since it is now always enabled by default Signed-off-by: Aaron Lauterer --- qm-pci-passthrough.adoc | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/qm-pci-passthrough.adoc b/qm-pci-passthrough.adoc index 4f19f2a..52b1d58 100644 --- a/qm-pci-passthrough.adoc +++ b/qm-pci-passthrough.adoc @@ -63,19 +63,19 @@ some configuration to enable PCI(e) passthrough. .IOMMU -First, you will have to enable IOMMU support in your BIOS/UEFI. Usually the +You will have to enable IOMMU support in your BIOS/UEFI. Usually the corresponding setting is called `IOMMU` or `VT-d`, but you should find the exact option name in the manual of your motherboard. -For Intel CPUs, you also need to enable the IOMMU on the -xref:sysboot_edit_kernel_cmdline[kernel command line] kernels by adding: +With AMD CPUs IOMMU is enabled by default. With recent kernels (6.8 or newer), +this is also true for Intel CPUs. On older kernels, it is necessary to enable +it on Intel CPUs via the +xref:sysboot_edit_kernel_cmdline[kernel command line] by adding: ---- intel_iommu=on ---- -For AMD CPUs it should be enabled automatically. - .IOMMU Passthrough Mode If your hardware supports IOMMU passthrough mode, enabling this mode might