Re: [Qemu-devel] [RFC 4/6] CLI: add -paused option

[Paolo Bonzini]

On 16/10/2017 19:17, Eduardo Habkost wrote:
>> Should (or could) "-M none" be changed in a backwards-compatible way to
>> allow such preconfiguration?  For example
>>
>>   qemu -M none -monitor stdio
>>   (qemu) machine-set-options pc,accel=kvm
>>   (qemu) c
> Sounds like an interesting idea.  It would require ensuring it's
> really safe to destroy current_machine/accel (and other global
> state) and replace them with another object on the fly (which is
> probably a nice goal by itself).

It is but, alternatively, you could delay creating the "none" machine
until the last second.  The important part, in my opinion, is having a
good command-line interface that we can freeze even if the
implementation below leaves something to be desired.

Paolo