Re: [Qemu-devel] [RFC] arm/virt: add one more uart for UEFI runtime debug

[Peter Maydell]

On Mon, 8 Apr 2019 at 02:45, Heyi Guo <address@hidden> wrote:
> On 2019/4/7 21:16, Peter Maydell wrote:
> > I don't think it makes much sense to keep adding UARTs for every
> > bit of the system software stack. We don't have an infinite
> > supply of UARTs on real hardware either -- how is this handled
> > there ?
> As you were in the edk2 mail thread, I supposed you also agreed to add one 
> more UART. What did you mean by "I do still have a todo list item to add a 
> 2nd UART"? How shall we do that?

That would be a simple second UART available to both secure
and non-secure and advertised in the device tree. It would
only be created if the user specifically asked for it on
the QEMU command line. I still need to investigate exactly
how that ought to work, though.

thanks
-- PMM