Paolo Bonzini <pbonzini@xxxxxxxxxx> 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
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