From: Jarkko Sakkinen <jarkko@kernel.org>
To: Cathy Zhang <cathy.zhang@intel.com>
Cc: linux-sgx@vger.kernel.org, x86@kernel.org,
reinette.chatre@intel.com, dave.hansen@intel.com,
ashok.raj@intel.com
Subject: Re: [RFC PATCH v3 02/10] x86/sgx: Provide VA page non-NULL owner
Date: Sun, 3 Apr 2022 11:29:19 +0300 [thread overview]
Message-ID: <Ykla34zPVGprnmpb@kernel.org> (raw)
In-Reply-To: <20220401142409.26215-3-cathy.zhang@intel.com>
On Fri, Apr 01, 2022 at 10:24:01PM +0800, Cathy Zhang wrote:
> Provide non-NULL owner for VA page, which tells that the EPC page is
> allocated for use.
>
> Signed-off-by: Cathy Zhang <cathy.zhang@intel.com>
So here the code change does not look all that bad but the commit message
completely explanation of it.
"Provided non-NULL owner" is not something that I can map to any reasonable
action that , i.e. I don't know what the heck it even means :-) It's just
jargon, isn't it?
Staart with
"Make epc->owner type-agnostic by changing it's type to `void *`. ..."
Then you should answer exactly two questions in the commit message:
* Who is the owner? For regular pages it's the logical enclave page.
* For exactly what use it is allocated for?
BR, Jarkko
next prev parent reply other threads:[~2022-04-03 8:28 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-01 14:23 [RFC PATCH v3 00/10] Support microcode updates affecting SGX Cathy Zhang
2022-04-01 14:24 ` [RFC PATCH v3 01/10] x86/sgx: Introduce mechanism to prevent new initializations of EPC pages Cathy Zhang
2022-04-03 8:13 ` Jarkko Sakkinen
2022-04-06 3:31 ` Zhang, Cathy
2022-04-01 14:24 ` [RFC PATCH v3 02/10] x86/sgx: Provide VA page non-NULL owner Cathy Zhang
2022-04-03 8:29 ` Jarkko Sakkinen [this message]
2022-04-01 14:24 ` [RFC PATCH v3 03/10] x86/sgx: Save enclave pointer for VA page Cathy Zhang
2022-04-03 10:08 ` Jarkko Sakkinen
2022-04-06 3:31 ` Zhang, Cathy
2022-04-06 6:33 ` Jarkko Sakkinen
2022-04-01 14:24 ` [RFC PATCH v3 04/10] x86/sgx: Keep record for SGX VA and Guest page type Cathy Zhang
2022-04-03 10:11 ` Jarkko Sakkinen
2022-04-06 3:38 ` Zhang, Cathy
2022-04-01 14:24 ` [RFC PATCH v3 05/10] x86/sgx: Save the size of each EPC section Cathy Zhang
2022-04-03 10:14 ` Jarkko Sakkinen
2022-04-06 4:00 ` Zhang, Cathy
2022-04-06 6:34 ` Jarkko Sakkinen
2022-04-01 14:24 ` [RFC PATCH v3 06/10] x86/sgx: Forced EPC page zapping for EUPDATESVN Cathy Zhang
2022-04-03 10:20 ` Jarkko Sakkinen
2022-04-06 4:21 ` Zhang, Cathy
2022-04-01 14:24 ` [RFC PATCH v3 07/10] x86/sgx: Define error codes for ENCLS[EUPDATESVN] Cathy Zhang
2022-04-01 14:24 ` [RFC PATCH v3 08/10] x86/sgx: Implement ENCLS[EUPDATESVN] Cathy Zhang
2022-04-01 14:24 ` [RFC PATCH v3 09/10] x86/cpu: Call ENCLS[EUPDATESVN] procedure in microcode update Cathy Zhang
2022-04-01 14:29 ` Borislav Petkov
2022-04-02 2:54 ` Zhang, Cathy
2022-04-01 15:42 ` Dave Hansen
2022-04-02 3:02 ` Zhang, Cathy
2022-04-01 14:24 ` [RFC PATCH v3 10/10] x86/sgx: Call ENCLS[EUPDATESVN] during SGX initialization Cathy Zhang
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