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Re: [Qemu-devel] [PATCH] hw/s390x: Fix the function arguments in the pci
Re: [Qemu-devel] [PATCH] hw/s390x: Fix the function arguments in the pci stub file
Mon, 11 Feb 2019 11:54:45 +0100
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1
On 2019-02-11 11:48, Cornelia Huck wrote:
> On Fri, 1 Feb 2019 09:23:56 +0100
> Cornelia Huck <address@hidden> wrote:
>> On Fri, 1 Feb 2019 07:46:40 +0100
>> Thomas Huth <address@hidden> wrote:
>>> So I see two options now:
>>> 1) Finally really make the device optional, at least for new machine
>>> types, so we can really disable CONFIG_PCI and get a working executable.
>>> 2) Scratch the idea completely to make this optional, always link the
>>> s390-pci-bus.o and s390-pci-inst.o files unconditionally, and remove the
>>> s390-pci-stub.c file.
>>> I assume options 2 is preferred, since we likely rather want to move
>>> into the PCI direction in the long run, instead of ignoring it...
>> I think both options are viable, but option 1 is of course more work.
>> The win there is that we could disable an entire subsystem.
>> I guess that the basic questions are: How important is it that
>> subsystems can be compiled out, and do we see a use case for a pci-less
>> s390 machine in the future? We really don't want to spend much time on
>> something of dubious use...
> Any thoughts on this?
> I'm currently tending towards option 2 (and can cook up a patch for
> that). Unless someone is already working on option 1 :)
Since nobody currently has a need to completely disable PCI, I think we
should go with option 2.