| Subject | Re: [PATCH V3 17/30] x86/sgx: Support modifying SGX page type | From | Jarkko Sakkinen <> | Date | Tue, 05 Apr 2022 21:41:34 +0300 |
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On Tue, 2022-04-05 at 10:05 -0700, Reinette Chatre wrote: > Hi Jarkko, > > On 4/5/2022 8:34 AM, Jarkko Sakkinen wrote: > > On Tue, 2022-04-05 at 10:06 +0300, Jarkko Sakkinen wrote: > > > > > > > > > > > To be coherent with other names, this should be > > > SGX_IOC_ENCLAVE_MODIFY_TYPES. > > This is not such a clear change request to me: > > SGX_IOC_ENCLAVE_ADD_PAGES - add multiple pages > SGX_IOC_ENCLAVE_RESTRICT_PERMISSIONS - restrict multiple permissions > SGX_IOC_ENCLAVE_REMOVE_PAGES - remove multiple pages > SGX_IOC_ENCLAVE_MODIFY_TYPE - set a single type > > Perhaps it should rather be SGX_IOC_ENCLAVE_SET_TYPE to indicate that > there is a single target type as opposed to the possibility > of multiple source types (TCS and regular pages can be trimmed). > > > > > This should take only page type given that flags are zeroed: > > > > EPCM(DS:RCX).R := 0; > > EPCM(DS:RCX).W := 0; > > EPCM(DS:RCX).X := 0; > > > > ok, this was how it was done in V1 [1] and I can go back to that.
I would name the fields as "flags" and "page_type" just to align names with SGX instead of trying to mimim "posix names". Otherwise, I support that.
BR, Jarkko
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