[PATCH 1/2] conf: add address width attribute to iommu
Michal Privoznik
mprivozn at redhat.com
Tue Jun 23 13:55:27 UTC 2020
On 6/4/20 9:42 AM, Menno Lageman wrote:
> Add a new aw_bits attribute to the iommu device to control
> the address width of the intel-iommu
>
> Signed-off-by Menno Lageman <menno.lageman at oracle.com>
> ---
> docs/formatdomain.html.in | 9 +++++
> docs/schemas/domaincommon.rng | 5 +++
> src/conf/domain_conf.c | 21 +++++++++++
> src/conf/domain_conf.h | 1 +
> .../qemuxml2argvdata/intel-iommu-aw-bits.xml | 35 +++++++++++++++++++
> .../intel-iommu-aw-bits.x86_64-latest.xml | 1 +
> tests/qemuxml2xmltest.c | 1 +
> 7 files changed, 73 insertions(+)
> create mode 100644 tests/qemuxml2argvdata/intel-iommu-aw-bits.xml
> create mode 120000 tests/qemuxml2xmloutdata/intel-iommu-aw-bits.x86_64-latest.xml
>
> diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
> index 33cec1e6dd9f..64d4100dcd92 100644
> --- a/docs/formatdomain.html.in
> +++ b/docs/formatdomain.html.in
> @@ -9326,6 +9326,15 @@ qemu-kvm -net nic,model=? /dev/null
> <span class="since">Since 3.5.0</span> (QEMU/KVM only)
> </p>
> </dd>
> + <dt><code>aw_bits</code></dt>
> + <dd>
> + <p>
> + The <code>aw_bits</code> attribute can be used to set
> + the address width to allow mapping larger iova addresses
> + in the guest.
> + <span class="since">Since 2.12.2</span> (QEMU/KVM only)
This should represent the libvirt version since which the feature is
available.
Michal
More information about the libvir-list
mailing list