On Tue, Mar 31, 2026 at 14:51:44 +0200, Pavel Hrdina via Devel wrote:

Signed-off-by: Pavel Hrdina <phrdina@redhat.com> --- NEWS.rst | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)

diff --git a/NEWS.rst b/NEWS.rst index 9d490ebbca..cab0a6ce70 100644 --- a/NEWS.rst +++ b/NEWS.rst @@ -17,6 +17,18 @@ v12.2.0 (unreleased)

* **New features**

+ * qemu: Add support to configure IOMMUFD backend for whole VM + + In addition to setting IOMMUFD backend for each device it is possible + to use the new ``<iommufd>`` element to enable IOMMUFD backend for all + host devices. Users can still change it per device. + + * qemu: Add support to pass FD for IOMMUFD when starting VM + + Management applications running unprivileged libvirt can open /dev/iommu + and pass FD to libvirt in order to change locked memory accounting. + This is done via new ``<iommufd>`` element. + * **Improvements**

* conf: support more than 255 vCPUs with amd-iommu @@ -28,6 +40,11 @@ v12.2.0 (unreleased)

* **Bug fixes**

+ * qemu: Fix crash when attaching network inteface with hostdev network + + Introduced in v12.1.0 by implementing IOMMUFD backend support for + host devices. +

v12.1.0 (2026-03-02) ==================== -- 2.53.0

Reviewed-by: Peter Krempa <pkrempa@redhat.com>