Re: Architecture extension proposal for ConfigPtr CSR to "Unified RISC-V Discovery Method" config structure

Greg Favor

On Mon, Jun 28, 2021 at 1:29 PM Tim Newsome <tim@...> wrote:
One addition:
If the CSR contains 0, software should assume there is no configuration structure.

I'd also like to require the pointer be 4-byte aligned, meaning software should ignore the low 2 bits. This will give us 2 extra bits should we need them in the future.

That's OK.  The extension would then define the low two bits as "00" and as "Reserved for future standard use".


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