Re: [RISC-V] [tech-tee] TEE proposal for M-mode SMEP/SMAP via PMP
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The other possibility is to simply write it, but any access that is matched by it (and not overridden by another with a lower index?) causes a security exception.
That is actually how I thought it did work. Then it's handled exactly like all the other exception - basically noRWX, but instead of an access exception, its a security exception.
On Fri, Dec 20, 2019 at 7:14 PM Bill Huffman <huffman@...> wrote: