On 10/08/17 22:09, Julien Grall wrote:
We can stick to XEN-only approach, like XENFEAT_* or "xen,smccc" in DT.
But is this right?
Answering to this question after some thoughts and discussion around.
The generic approach is indeed the best solution, however I am afraid it
will take some times to get ready and might not be ready for Xen 4.10.
As I mentioned earlier, I don't want to merge this without any way to
discover the existence of SMCCC in the hypervisor. I also understand
that you would like to get this merged in Xen 4.10.
So the alternative we have is to provide a XEN-only approach for the
time being. It has to work for both ACPI and DT, this likely means we
want a XENFEAT_* flag.
That alternative would be supersede when the generic approach will be
available. Though we would have to keep both around, but it is it not a
Does it make sense?
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