Re: [Qemu-devel] Minimal Qemu build for Plan9

[Andreas Färber]

Hi,

Am 30.09.2013 10:00, schrieb Ashish Kaila:
> I am a graduate student from CMU and currently working on trying to port
> Qemu on plan9. I was trying to initially build a minimal Qemu with the
> least set of devices that are necessary to support a machine, however I
> noticed that I couldn’t understand some of the dependencies such as
> requiring an audio driver during initialization. I am currently trying
> to port just the i386-softmmu version of Qemu to plan9 to keep things
> simple, here I noticed that  pc_init1() initializes a host of devices on
> the PCI bus like the NIC card etc and was wondering if there is a bare
> minimum set of devices that Qemu needs to be built with ?

Configuring with --target-list=i386-softmmu should already give you a
minimal set of devices, omitting those that are irrelevant for x86 but
including a few optional ones.

However I don't understand why devices emulated in C code would pose a
porting problem for you? If the code is not using portable POSIX
constructs or suitable #ifdefs then please post patches to fix that
rather than working around those type of things.

> Additionally if someone could point me to a to-do list of things to look
> out for while porting Qemu on a new platform (new OS/hardware), I would
> be extremely grateful.

osdep.c and related files come to mind, configure obviously.

Regards,
Andreas

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