On Thu, Nov 20, 2025 at 17:34:39 -0500, Collin Walling wrote:
Currently, when setting the deprecated_features attribute to 'on', all known deprecated features will be enabled for the CPU model, including ones that are *not* supported by the model.
These patches query an additional set of deprecated features by performing a CPU model expansion on host-model with type "static". The list of deprecated features reported from this command will reflect features that may be enabled on the model without error. Now, when a user specifies deprecated_features='on' in the domain XML, only the features that are still supported by the model are requested to be turned on for the guest.
This can be helpful for e.g. tests that may wish to check CPU model compatability in certain environments.
Collin Walling (4): qemu: rename modelinfo's deprecated_props to full_dep_props qemu: refactor load/format of deprecated features qemu: query and cache static/host deprecated features qemu: only allow enabling deprecated features that are supported
src/qemu/qemu_capabilities.c | 106 ++++++++++++------ src/qemu/qemu_monitor.c | 6 +- src/qemu/qemu_monitor.h | 3 +- src/qemu/qemu_monitor_json.c | 17 ++- .../caps_10.0.0_s390x.xml | 6 + .../qemucapabilitiesdata/caps_9.1.0_s390x.xml | 6 + .../qemucapabilitiesdata/caps_9.2.0_s390x.xml | 6 + 7 files changed, 112 insertions(+), 38 deletions(-)
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>