Re: [Qemu-devel] feature idea: allow user to run custom scripts

[Michael Roth <mdroth@linux.vnet.ibm.com>]

Quoting Programmingkid (2015-09-27 20:49:24)
> 
> On Sep 27, 2015, at 2:53 PM, Peter Crosthwaite wrote:
> 
> > On Sun, Sep 27, 2015 at 3:13 AM, Peter Maydell <peter.maydell@linaro.org> wrote:
> >> On 27 September 2015 at 04:39, Programmingkid <programmingkidx@gmail.com> wrote:
> >>> Would you be open to a feature that allows the user to select
> >>> and run a custom file that has commands in it that would run
> >>> in the monitor?
> >> 
> >> Sounds like a VM management layer feature.
> >> 
> > 
> > Should -monitor file:/foo/bar do something like this?
> 
> If you are saying this command line argument loads monitor commands,
> then it would only work when QEMU is first started. The feature I want
> would work anytime during the running of QEMU. 

For that sort of flexibility I think writing commands to a socket via
a script/program is simple enough that an additional interface doesn't
seem worthwhile. Even our qtest unit tests use this approach. Plus you
get the flexibility of a being able to branch based on the return
value of commands (error-handling, stateful commands, incorporating
output from a serial console, etc.). It seems like a nice feature but
it's vastly inferior to what's possible with an external driver.