| Subject | Re: [PATCH 10/25] x86/sgx: Support enclave page permission changes | From | Dave Hansen <> | Date | Fri, 3 Dec 2021 10:14:59 -0800 |
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On 12/1/21 11:23 AM, Reinette Chatre wrote: > Enclave page permission changes need to be approached with care and > for this reason this initial support is to allow enclave page > permission changes _only_ if the new permissions are the same or > more restrictive that the permissions originally vetted at the time the > pages were added to the enclave. Support for extending enclave page > permissions beyond what was originally vetted is deferred.
It's probably worth adding a few examples here:
* RWX => RW => RX => RW => R => RWX * RW => R => RW * RX => R => RX
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