Re: [PATCH 2/4] x86/sgx: Put enclaves into anonymous files

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On Tue, Mar 31, 2020 at 4:44 AM Jarkko Sakkinen
<jarkko.sakkinen@xxxxxxxxxxxxxxx> wrote:
>
> When creating an enclave attach it to an anonymous file. This prepares the
> code to have a separate interface at runtime, which can be published to the
> user space after the enclave has been fully initialized.

This isn't an objection per se, but I can't shake the feeling that
this seems ridiculous.  This changes the type of object returned by
open() because, without this change, the old type was problematic.

So I have some questions:

 - Can sgx just ignore the fs noexec option on the chardev inode's fs instead?

 - Would SELinux users *want* to put a useful label on the inode?  if
so, can they still accomplish whatever they were trying to accomplish
with this patch applied?

--Andy



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