From 695012903f99d42c03a5bc87fe24f591b6bf7153 Mon Sep 17 00:00:00 2001 From: Eric Auger Date: Thu, 7 Mar 2024 14:43:05 +0100 Subject: [PATCH] qemu-options.hx: Document the virtio-iommu-pci granule option MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Message-Id: <20240307134445.92296-5-eric.auger@redhat.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin Reviewed-by: Philippe Mathieu-Daudé --- qemu-options.hx | 8 ++++++++ 1 file changed, 8 insertions(+) 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,