[PATCH 4/4] docs: Document loader 'none' attribute

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Signed-off-by: Daniel Henrique Barboza <dbarboza@xxxxxxxxxxxxxxxx>
---
 docs/formatdomain.rst | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/docs/formatdomain.rst b/docs/formatdomain.rst
index 27f83e254d..3529c7a9c5 100644
--- a/docs/formatdomain.rst
+++ b/docs/formatdomain.rst
@@ -263,6 +263,13 @@ harddisk, cdrom, network) determining where to obtain/find the boot image.
    specific format. Supported values are ``raw`` and ``qcow2``.
    :since:`Since 9.2.0 (QEMU only)`
 
+   When firmware autoselection is not enabled, marking the ``type`` attribute
+   as ``none`` without any file path will set the QEMU BIOS file path as
+   ``none``. This is used by architectures that will always load the default
+   BIOS image otherwise, making them unable to start the domain when using
+   a guest kernel that overwrites the memory the default BIOS image uses.
+   :since:`Since 9.3.0 (QEMU only)`
+
 ``nvram``
    Some UEFI firmwares may want to use a non-volatile memory to store some
    variables. In the host, this is represented as a file and the absolute path
-- 
2.39.2




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