Re: [PATCH V2 16/32] x86/sgx: Support restricting of enclave page permissions

Jarkko Sakkinen
2022-02-28T12:25:07Z

On Wed, Feb 23, 2022 at 07:21:50PM +0000, Dhanraj, Vijay wrote:
> Hi All,
>
> Regarding the recent update of splitting the page permissions change
> request into two IOCTLS (RELAX and RESTRICT), can we combine them into
> one? That is, revert to how it was done in the v1 version?

They are logically separate complex functionalities:

1. "restrict" calls EMODPR and requires EACCEPT
2. "relax" increases permissions up to vetted ("EADD") and could be
combined with EMODPE called inside enclave.

I don't think it is a good idea.

BR, Jarkko