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-rw-r--r--docs/system/arm/virt.rst5
1 files changed, 4 insertions, 1 deletions
diff --git a/docs/system/arm/virt.rst b/docs/system/arm/virt.rst
index 1297dff522..5fe045cbf0 100644
--- a/docs/system/arm/virt.rst
+++ b/docs/system/arm/virt.rst
@@ -99,11 +99,14 @@ gic-version
GICv2. Note that this limits the number of CPUs to 8.
``3``
GICv3. This allows up to 512 CPUs.
+ ``4``
+ GICv4. Requires ``virtualization`` to be ``on``; allows up to 317 CPUs.
``host``
Use the same GIC version the host provides, when using KVM
``max``
Use the best GIC version possible (same as host when using KVM;
- currently same as ``3``` for TCG, but this may change in future)
+ with TCG this is currently ``3`` if ``virtualization`` is ``off`` and
+ ``4`` if ``virtualization`` is ``on``, but this may change in future)
its
Set ``on``/``off`` to enable/disable ITS instantiation. The default is ``on``