[Buildroot] [PATCH v3 for-next 00/11] gitlab Qemu runtime testing

[Romain Naour]

Hi,

Le 19/12/2019 à 12:11, Peter Korsgaard a écrit :
>>>>>> "Arnout" == Arnout Vandecappelle <arnout at mind.be> writes:
> 
> Hi,
> 
>  >> I discussed about this series with Jeremy and he suggest to add the Qemu command
>  >> line into the Qemu's defconfig file (add a new Kconfig option).
>  >> With that, we can even add a new Makefile target "make run-qemu" to start Qemu
>  >> when the Qemu command line is set in the defconfig (this would avoid adding
>  >> several launch.sh script).
> 
>  > So something like
> 
>  > config BR2_PACKAGE_HOST_QEMU_LAUNCH_ARGS
>  > 	string "qemu launch command"
>  > 	help
>  > 	  Command to launch qemu. If this is defined, 'make run-qemu' can be
>  > 	  used to build everything and launch qemu.
> 
> 
>  > HOST_QEMU_LAUNCH_ARGS = $(call qstrip,$(BR2_PACKAGE_HOST_QEMU_LAUNCH_ARGS))
>  > ifneq ($(HOST_QEMU_LAUNCH_ARGS),)
>  > run-qemu: world
>  > 	$(Q)$(HOST_QEMU) <kernel args> <rootfs args> $(HOST_QEMU_LAUNCH_ARGS)
>  > endif
> 
>  > Looks like a good idea indeed!
> 
> Cute. The kernel arguments (-kernel path/to/kernel/image) could indeed
> probably be standardized, but we do some to have quite some variation in
> the rootfs arguments.
> 
> But OK, we could start with just including the rootfs argument in
> _LAUNCH_ARGS.
> 

About the qemu-system-* binary, should we use the one from the host or use the
one from the host-qemu package? (or it depend?)

It can be convenient to use the Qemu provided by the host since it can provide
full feature support. The Qemu provided by host-qemu only support some
dependencies but not all.

On the other hand, the user can still use the qemu-system-* he want by not using
make run-qemu but using the qemu command line in the console.

Best regards,
Romain