qemu-options.hx: Document the virtio-iommu-pci aw-bits option

Document the new aw-bits option.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <20240307134445.92296-10-eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>

diff --git a/qemu-options.hx b/qemu-options.hx
index c6f3d2e76d24db4ad753b51f9e105cc82a554f3c..7fd1713fa83c50afebaff66a0ae794374c70957c 100644 (file)
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -1180,6 +1180,9 @@ SRST
         This decides the default granule to be be exposed by the
         virtio-iommu. If host, the granule matches the host page size.
 
+    ``aw-bits=val`` (val between 32 and 64, default depends on machine)
+        This decides the address width of the IOVA address space.
+
 ERST
 
 DEF("name", HAS_ARG, QEMU_OPTION_name,