[PATCH 0/2] Early printk support for virtio console devices.

[Peter Maydell]

On 26 April 2013 13:33, Arnd Bergmann <arnd at arndb.de> wrote:
> Couldn't kvmtool implement the interface used by smh_printch()
> for early output instead?
>
> Or if that's not a fitting inteface, maybe a psci call for writing
> a character to the console?

I suggested that earlier:
https://lists.cs.columbia.edu/pipermail/kvmarm/2013-April/005433.html

and Alex pointed out that s390-virtio experience with that
approach is that it's awkward for userspace.

-- PMM