From: Dominik Csapak <d.csapak@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH docs 2/2] pci-passthrough: expand IOMMU section with notice about BIOS
Date: Wed, 27 Oct 2021 09:27:32 +0200 [thread overview]
Message-ID: <20211027072732.929780-2-d.csapak@proxmox.com> (raw)
In-Reply-To: <20211027072732.929780-1-d.csapak@proxmox.com>
note that one must enable IOMMU support in the BIOS/UEFI.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
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:
--
2.30.2
next prev parent reply other threads:[~2021-10-27 7:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-27 7:27 [pve-devel] [PATCH docs 1/2] remove 'amd_iommu=on' from the passthrough docs Dominik Csapak
2021-10-27 7:27 ` Dominik Csapak [this message]
2021-10-27 11:22 ` [pve-devel] applied: [PATCH docs 2/2] pci-passthrough: expand IOMMU section with notice about BIOS Thomas Lamprecht
2021-10-27 11:22 ` [pve-devel] applied: [PATCH docs 1/2] remove 'amd_iommu=on' from the passthrough docs Thomas Lamprecht
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