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conf: add passthrough and xtsup attributes for IOMMU

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For the newly supported AMD device.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
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Ján Tomko
2025-06-24 12:14:04 +02:00
parent 1476060091
commit 856f667c8a
8 changed files with 63 additions and 2 deletions
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docs/formatdomain.rst
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@@ -9104,6 +9104,14 @@ Example:
example to efficiently enable more than 255 vCPUs.
:since:`Since 10.7.0` (QEMU/KVM and ``intel`` model only)
``passthrough``
Enable passthrough. In this mode, DMA read/writes are not translated.
:since:`Since 11.5.0` (QEMU/KVM and ``amd`` model only)
``xtsup``
Enable x2APIC mode. Useful for higher number of guest CPUs.
:since:`Since 11.5.0` (QEMU/KVM and ``amd`` model only)
The ``virtio`` IOMMU devices can further have ``address`` element as described
in `Device addresses`_ (address has to by type of ``pci``).