On 18 April 2013 12:21, Rusty Russell <ru...@rustcorp.com.au> wrote: > > PranavkumarSawargaonkar <pranavku...@linaro.org> writes: > > From: Pranavkumar Sawargaonkar <pranavku...@linaro.org> > > > > This patch implements early printk support for virtio-mmio console devices > > without using any hypercalls. > > This makes some sense, though not sure that early console *read* makes > much sense. I can see the PCI version of this being useful as well.
Read can be useful for "mach-virt" which will have only virtio console as a console device. Then if someone wants to have UEFI or any other boot-loader emulation, which expects user to input few things, in that case read might become handy. > > > The spec definition for this will be interesting, because it can be used > before the device is initialized (something which is generally > verboten). > > Cheers, > Rusty. Thanks, Pranav -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
