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authorEric Auger <eric.auger@redhat.com>2024-03-07 14:43:05 +0100
committerMichael S. Tsirkin <mst@redhat.com>2024-03-12 17:58:30 -0400
commit695012903f99d42c03a5bc87fe24f591b6bf7153 (patch)
treeadc8050244054094583e975e7902b98631a30f08
parent9dd5e808fc17ac92180965178a6e867c1e96ac57 (diff)
qemu-options.hx: Document the virtio-iommu-pci granule option
We are missing an entry for the virtio-iommu-pci device. Add the information on which machine it is currently supported and document the new granule option. Signed-off-by: Eric Auger <eric.auger@redhat.com> Message-Id: <20240307134445.92296-5-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>
-rw-r--r--qemu-options.hx8
1 files changed, 8 insertions, 0 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index 937fd7ed84..c6f3d2e76d 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -1172,6 +1172,14 @@ SRST
Please also refer to the wiki page for general scenarios of VT-d
emulation in QEMU: https://wiki.qemu.org/Features/VT-d.
+``-device virtio-iommu-pci[,option=...]``
+ This is only supported by ``-machine q35`` (x86_64) and ``-machine virt`` (ARM).
+ It supports below options:
+
+ ``granule=val`` (possible values are 4k, 8k, 16k, 64k and host; default: host)
+ This decides the default granule to be be exposed by the
+ virtio-iommu. If host, the granule matches the host page size.
+
ERST
DEF("name", HAS_ARG, QEMU_OPTION_name,