Paolo Bonzini <pbonzini@redhat.com> writes:
Il 27/02/2013 18:08, Anthony Liguori ha scritto:
No, no, no. This makes ':' special, which means you can't have lists of anything containing ':'. Your cure is worse than the disease. Let go of that syntactic high-fructose corn syrup, stick to what we have and works just fine, thank you.
Yes, there *must* be special syntax. If we're treating something special, then we should indicate to the user that it's special.
Specifically, a list of integers should look distinctly different than overriding a previously specified integer.
The solution is "there is no way to override a previously specified key". Something like "-device virtio-scsi-pci,num_queues=1,num_queues=2" now works, let's make it an error instead.
That breaks compatibility. The above may seem silly but consider: qemu -device virtio-scsi-pci,num_queues=1,id=foo \ -set device.foo.num_queues=2 This is more common than you would think primarily as a way to override options that libvirt has set either via the qemu extra args tag or a script wrapper of qemu. Regards, Anthony Liguori
Paolo