Messages in this thread | | | Date | Wed, 23 Sep 2020 18:17:33 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH v38 17/24] x86/sgx: ptrace() support for the SGX driver |
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On Wed, Sep 23, 2020 at 04:20:49PM +0300, Jarkko Sakkinen wrote: > Intel Sofware Guard eXtensions (SGX) allows creation of executable blobs > called enclaves, which cannot be accessed by default when not executing > inside the enclave. Enclaves can be entered by only using predefined memory > addresses, which are defined the enclave is loaded. ^ "when" or "before". I think it is before.
> However, enclaves can defined as debug enclaves during the load time. In
"However, enclaves can be defined as debug enclaves at load time."
> debug enclaves data can be read and/or written a memory word at a time by > using by using ENCLS[EDBGRD] and ENCLS[EDBGWR] leaf instructions.
only one "by using" is enough.
> Add 'access' implementation to vm_ops with the help of these functions.
"Add an ->access virtual MM function for accessing the enclave's memory... "
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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