On Sun, Jun 03, 2018 at 12:27:49PM +0300, Marcel Apfelbaum wrote: > Moving to QEMU 3.0 seems like a good opportunity for such a change. > > I440FX is really old and does not support modern features like IOMMU. > Q35's SATA emulation is faster than pc's IDE, native PCI express hotplug > is cleaner than ACPI based one and so on... > > Also the libvirt guys added very good support for the Q35 machine (thanks!). > > Management software should always specify the machine type and for the > current setups, adding '-machine pc' to the command line is not such a > big deal. > > In time the pc machine will fade out and we will probably stop adding > new versions at some point. > > Signed-off-by: Marcel Apfelbaum <marcel.apfelb...@gmail.com>
For command line users, I think changing the default isn't nice. Yes it's easy to add -machine pc but there's no documentation that tells you to do so. Add to that shortcuts like -cdrom stop working, hotplug needs extra bridges to work, and one can see that while management tool users benefit from q35, command line users will suffer. Can't we add a tag for management without changing the command line default? How about "management-default"? "recommended"? "latest"? -- MST
