From: "Jarkko Sakkinen" <jarkko@kernel.org>
To: "Dmitrii Kuvaiskii" <dmitrii.kuvaiskii@intel.com>,
<dave.hansen@linux.intel.com>, <kai.huang@intel.com>,
<haitao.huang@linux.intel.com>, <reinette.chatre@intel.com>,
<linux-sgx@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: <mona.vij@intel.com>, <kailun.qin@intel.com>, <stable@vger.kernel.org>
Subject: Re: [PATCH v4 1/3] x86/sgx: Split SGX_ENCL_PAGE_BEING_RECLAIMED into two flags
Date: Wed, 17 Jul 2024 13:36:08 +0300 [thread overview]
Message-ID: <D2RQXM679U0X.1XY6BWHSFTRFZ@kernel.org> (raw)
In-Reply-To: <20240705074524.443713-2-dmitrii.kuvaiskii@intel.com>
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
next prev parent reply other threads:[~2024-07-17 10:36 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-05 7:45 [PATCH v4 0/3] x86/sgx: Fix two data races in EAUG/EREMOVE flows Dmitrii Kuvaiskii
2024-07-05 7:45 ` [PATCH v4 1/3] x86/sgx: Split SGX_ENCL_PAGE_BEING_RECLAIMED into two flags Dmitrii Kuvaiskii
2024-07-10 15:15 ` Haitao Huang
2024-07-17 10:36 ` Jarkko Sakkinen [this message]
2024-08-12 8:12 ` Dmitrii Kuvaiskii
2024-08-15 18:29 ` Jarkko Sakkinen
2024-07-17 10:37 ` Jarkko Sakkinen
2024-08-12 8:16 ` Dmitrii Kuvaiskii
2024-08-15 18:30 ` Jarkko Sakkinen
2024-07-25 2:00 ` Huang, Kai
2024-07-05 7:45 ` [PATCH v4 2/3] x86/sgx: Resolve EAUG race where losing thread returns SIGBUS Dmitrii Kuvaiskii
2024-07-17 10:38 ` Jarkko Sakkinen
2024-08-12 8:21 ` Dmitrii Kuvaiskii
2024-08-15 18:31 ` Jarkko Sakkinen
2024-07-25 0:52 ` Huang, Kai
2024-07-05 7:45 ` [PATCH v4 3/3] x86/sgx: Resolve EREMOVE page vs EAUG page data race Dmitrii Kuvaiskii
2024-07-10 15:16 ` Haitao Huang
2024-07-17 10:38 ` Jarkko Sakkinen
2024-08-12 8:25 ` Dmitrii Kuvaiskii
2024-08-15 18:34 ` Jarkko Sakkinen
2024-08-15 18:37 ` Jarkko Sakkinen
2024-07-25 1:21 ` Huang, Kai
2024-08-09 9:35 ` Dmitrii Kuvaiskii
2024-08-09 11:19 ` Huang, Kai
2024-08-12 8:32 ` Dmitrii Kuvaiskii
2024-08-12 10:34 ` Huang, Kai
2024-07-05 9:03 ` [PATCH v4 0/3] x86/sgx: Fix two data races in EAUG/EREMOVE flows Jarkko Sakkinen
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