From 63f0bb9dd4345554999097cbbeb8d85caef0178f Mon Sep 17 00:00:00 2001 From: Dominik Csapak Date: Wed, 27 Oct 2021 09:27:32 +0200 Subject: [PATCH] pci-passthrough: expand IOMMU section with notice about BIOS note that one must enable IOMMU support in the BIOS/UEFI. Signed-off-by: Dominik Csapak --- qm-pci-passthrough.adoc | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/qm-pci-passthrough.adoc b/qm-pci-passthrough.adoc index dfc3d6e..edaa01f 100644 --- a/qm-pci-passthrough.adoc +++ b/qm-pci-passthrough.adoc @@ -45,7 +45,11 @@ some configuration to enable PCI(e) passthrough. .IOMMU -The IOMMU has to be activated on the +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 xref:sysboot_edit_kernel_cmdline[kernel commandline]. The command line parameters are: