Messages in this thread | | | From | Peter Maydell <> | Date | Tue, 7 May 2013 13:19:46 +0100 | Subject | Re: [PATCH 0/2] Early printk support for virtio console devices. |
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On 7 May 2013 05:46, Rusty Russell <rusty@rustcorp.com.au> wrote: > Peter Maydell <peter.maydell@linaro.org> writes: >> That all looks like sensible QEMU implementation possibilities >> but it seems to be a bit of a non-sequitur from "how do we >> tell the kernel to actually use this?" > > You enable the feature in the virtio console device, and a kernel > compiled with EARLY_PRINTK will use it?
Well, at the moment EARLY_PRINTK is hardcoded to "use some specific UART or equivalent selected at compile time". So the equivalent presumably would be to hard-compile "use virtio-console", but then how does that code know where the virtio-console is in the address space?
-- PMM
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