Re: Can't build in the virtio console driver on x86_64 when theother virtio drivers are modular
From: Amit Shah
Date: Mon Feb 28 2011 - 00:05:08 EST
On (Fri) 25 Feb 2011 [12:13:20], Chuck Ebbert wrote:
> On Fri, 25 Feb 2011 11:38:15 +0530
> Amit Shah <amit.shah@xxxxxxxxxx> wrote:
> > On (Thu) 24 Feb 2011 [11:28:19], Chuck Ebbert wrote:
> > > The virtio configuration options are inconsistent. According to this,
> > > every options that needs virtio will select it:
> > >
> > > # Virtio always gets selected by whoever wants it.
> > > config VIRTIO
> > > tristate
> > >
> > > Note that it's not user-selectable, so any config file that tries to
> > > set it will be ignored when kconfig loads those options. And yet we
> > > have a whole set of options that depend on VIRTIO, like VIRTIO_CONSOLE
> > > for example. This makes it impossible to have VIRTIO_PCI modular and
> > > VIRTIO_CONSOLE built-in on x86_64, because:
> > Any reason to have VIRTIO_PCI modular instead of built in (on x86-64,
> > virtio-console won't work without virtio-pci anyway)?
> None that I know of offhand, other than not building in things unless
> absolutely necessary. There's no dependency of any kind there, so it's
> even possible to build a kernel with VIRTIO_CONSOLE enabled and
> VIRTIO_PCI completely disabled.
Yes, that's that way because not all architectures need virtio-pci to
have virtio-console functional (eg. s390, which doesn't have a PCI
So if you're only interested in the x86-64 arch, you could compile in
virtio-pci and virtio-console and this should happily work.
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