Hi, This is another step following up the work done in [1]. Recapping, the idea is to move any validation that can be done in parse/define time to qemu_validate.c instead of let it sit inside a command line build function in qemu_command.c. I'll again copy/paste the reasoning Cole Robinson gave for this work back then (see [2] for more info): ------- The benefits of moving to validate time is that XML is rejected by 'virsh define' rather than at 'virsh start' time. It also makes it easier to follow the cli building code, and makes it easier to verify qemu_command.c test suite code coverage for the important stuff like covering every CLI option. It's also a good intermediate step for sharing validation with domain capabilities building, like is done presently for rng models. ------- Not all validations were moved with these series, but I covered most of them. One thing worth noticing is the existence of 'post start' validations, most of them related to PCI addressing, and other notable cases such as NUMA nodes and CPU models, that can't be moved to parse time. The reason is that the QEMU driver will change them during start time. I contemplated move them to the existing qemuBuildCommandLineValidate(), but that would remove them from the hotplug path that uses the qemuBuild*DevStr() functions. I don't have an easy answer on how to handle these 'post start' validations ATM, so for now they remain in qemu_command.c. [1] https://www.redhat.com/archives/libvir-list/2019-December/msg00570.html [2] https://www.redhat.com/archives/libvir-list/2019-October/msg00568.html src/qemu/qemu_command.c | 379 +-------- src/qemu/qemu_command.h | 4 +- src/qemu/qemu_hotplug.c | 4 +- src/qemu/qemu_validate.c | 740 ++++++++++++++---- tests/qemuhotplugtest.c | 1 + .../disk-sata-incompatible-address.err | 2 +- .../net-virtio-rxqueuesize-invalid-size.err | 2 +- .../pseries-panic-address.err | 2 +- tests/qemuxml2argvtest.c | 28 +- tests/qemuxml2xmltest.c | 62 +- 10 files changed, 706 insertions(+), 518 deletions(-) -- 2.26.2
