Re: [PATCH v4 1/3] x86/sgx: Split SGX_ENCL_PAGE_BEING_RECLAIMED into two flags

Jarkko Sakkinen
2024-07-17T10:36:12Z

On Fri Jul 5, 2024 at 10:45 AM EEST, Dmitrii Kuvaiskii wrote:
> SGX_ENCL_PAGE_BEING_RECLAIMED flag is set when the enclave page is being
> reclaimed (moved to the backing store). This flag however has two
> logical meanings:
~~~~~~~~
side-effects

Missing the actor.

"The page reclaimer thread sets SGX_ENC_PAGE_BEING_RECLAIMED flag..."

It is not just randomly "set".

>
> 1. Don't attempt to load the enclave page (the page is busy).

Please point out where in the source code.

> 2. Don't attempt to remove the PCMD page corresponding to this enclave
> page (the PCMD page is busy).

Please point out where in the source code.

These would be great reference when looking back.

>
> To reflect these two meanings, split SGX_ENCL_PAGE_BEING_RECLAIMED into

I don't care about meanings. Only who does and what.

BR, Jarkko