On 18/05/2018 17:45, Mark Brown wrote:
On Fri, May 18, 2018 at 05:28:10PM +0100, Grant Likely wrote:
+Devicetree tables at the same time. Platforms that want to offer
+both ACPI and Devicetree solutions must implement a boot time
+mechanism to select one or the other, before the OS Loader is
+executed.
How about "...must configure this using a mechanism that ensures that
one or the other is chosen and provided to the OS loader when it is
executed"? It doesn't really matter for sensible systems but I can see
someone misreading the above and thinking there must be a prompt on boot
or something, I do think this is me being paranoid about perverse
implementors though.
My bikeshed now has a sign that reads:
+As stated above, EBBR systems must not provide both ACPI
+and Devicetree tables at the same time.
+Systems that support both interfaces must provide a configuration
+mechanism to select either ACPI or Devicetree,
+and must ensure only the selected interface is provided
+to the OS loader.
g.
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