Re: [sig-hypervisors] [RISC-V] [tech-unixplatformspec] SBI Debug Console Extension Proposal (Draft v1)

Stefano Stabellini <stefano.stabellini@...>

On Thu, 2 Jun 2022, Vedvyas Shanbhogue via wrote:
Of course, if a hypervisor is already available for the board, then it
would be just as easy to use a paravirtualized interface, e.g. Xen's
HYPERVISOR_console_io hypercall. But somebody has to port the
hypervisor first :-)
Of course a console is needed. But I was questioning the need for something
more elaborate than a putchar/getchar interface. I understand its needed to
the hypervisor but I undersatnd it would be needed for very early parts of the
hypervisor where it does not even have the ability to master a uart on its
Yeah, I think you are right that it is not a must-have feature but a
nice-to-have feature.

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