Re: [Qemu-devel] we allow passing -machine type=foo more than once but are confused about which to use...

[Thomas Huth]

On 31.10.2017 19:33, Peter Maydell wrote:
> (cc Markus because I know how much he likes weirdnesses in our
> command line parsing :-))
> 
> https://stackoverflow.com/questions/46955244/qemu-run-arm-ubuntu-unsupported-machine-type/47042282
> has a user who's run into a confusing error message, because
> we allow the user to pass "-machine type=foo" more than once on
> the command line. When we decide which one to use, we go with the
> last one on the list. However if it's not valid, when we print the
> "don't recognize that machine type" message, the name we use in
> the message is the *first* one on the list :-)
> 
> Maybe we should just not allow users to pass the argument
> more than once...?

I think we at least need that in some of our qtests - to override the
default "-M accel=qtest" with "-M accel=tcg". So if we disallow to use
the option more than once, we've got to find a different solution for
the qtests.

 Thomas