From: Sean Christopherson <seanjc@google.com>
To: Dave Hansen <dave.hansen@intel.com>
Cc: Kristen Carlson Accardi <kristen@linux.intel.com>,
jarkko@kernel.org, dave.hansen@linux.intel.com, tj@kernel.org,
linux-kernel@vger.kernel.org, linux-sgx@vger.kernel.org,
cgroups@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
zhiquan1.li@intel.com
Subject: Re: [PATCH v2 05/18] x86/sgx: Track epc pages on reclaimable or unreclaimable lists
Date: Fri, 2 Dec 2022 22:28:50 +0000 [thread overview]
Message-ID: <Y4p8IuxyVLw2YPNy@google.com> (raw)
In-Reply-To: <1dccd2ec-cad8-b9d2-d66b-aebad21cdb44@intel.com>
On Fri, Dec 02, 2022, Dave Hansen wrote:
> On 12/2/22 10:36, Kristen Carlson Accardi wrote:
> > Replace functions sgx_mark_page_reclaimable() and
> > sgx_unmark_page_reclaimable() with sgx_record_epc_page() and
> > sgx_drop_epc_page(). sgx_record_epc_page() wil add the epc_page
> > to the correct "reclaimable" or "unreclaimable" list in the
> > sgx_epc_lru_lists struct. sgx_drop_epc_page() will delete the page
> > from the LRU list. Tracking pages that are not tracked by
> > the reclaimer in the sgx_epc_lru_lists "unreclaimable" list allows
> > an OOM event to cause all the pages in use by an enclave to be freed,
> > regardless of whether they were reclaimable pages or not.
>
> This might be more a comment about Sean's stuff
Anything with a single space after a period wasn't written by me, I'm a devout
believer of two spaces :-)
next prev parent reply other threads:[~2022-12-02 22:29 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-02 18:36 [PATCH v2 00/18] Add Cgroup support for SGX EPC memory Kristen Carlson Accardi
2022-12-02 18:36 ` [PATCH v2 01/18] x86/sgx: Call cond_resched() at the end of sgx_reclaim_pages() Kristen Carlson Accardi
2022-12-02 21:33 ` Dave Hansen
2022-12-02 21:37 ` Kristen Carlson Accardi
2022-12-02 21:45 ` Dave Hansen
2022-12-02 22:17 ` Kristen Carlson Accardi
2022-12-02 22:37 ` Dave Hansen
2022-12-02 18:36 ` [PATCH v2 02/18] x86/sgx: Store struct sgx_encl when allocating new VA pages Kristen Carlson Accardi
2022-12-02 21:35 ` Dave Hansen
2022-12-02 21:40 ` Kristen Carlson Accardi
2022-12-02 21:48 ` Dave Hansen
2022-12-02 22:35 ` Sean Christopherson
2022-12-02 22:47 ` Dave Hansen
2022-12-02 22:49 ` Sean Christopherson
2022-12-02 18:36 ` [PATCH v2 03/18] x86/sgx: Add 'struct sgx_epc_lru_lists' to encapsulate lru list(s) Kristen Carlson Accardi
2022-12-02 21:39 ` Dave Hansen
2022-12-08 15:31 ` Jarkko Sakkinen
2022-12-08 18:03 ` Kristen Carlson Accardi
2022-12-02 18:36 ` [PATCH v2 04/18] x86/sgx: Use sgx_epc_lru_lists for existing active page list Kristen Carlson Accardi
2022-12-02 21:43 ` Dave Hansen
2022-12-02 21:51 ` Kristen Carlson Accardi
2022-12-02 22:10 ` Dave Hansen
2022-12-02 18:36 ` [PATCH v2 05/18] x86/sgx: Track epc pages on reclaimable or unreclaimable lists Kristen Carlson Accardi
2022-12-02 22:13 ` Dave Hansen
2022-12-02 22:28 ` Sean Christopherson [this message]
2022-12-02 18:36 ` [PATCH v2 06/18] x86/sgx: Introduce RECLAIM_IN_PROGRESS flag for EPC pages Kristen Carlson Accardi
2022-12-02 22:15 ` Dave Hansen
2022-12-08 15:46 ` Jarkko Sakkinen
2022-12-08 18:13 ` Kristen Carlson Accardi
2022-12-02 18:36 ` [PATCH v2 07/18] x86/sgx: Use a list to track to-be-reclaimed pages during reclaim Kristen Carlson Accardi
2022-12-02 22:33 ` Dave Hansen
2022-12-05 16:33 ` Kristen Carlson Accardi
2022-12-05 17:03 ` Dave Hansen
2022-12-05 18:25 ` Kristen Carlson Accardi
2022-12-02 18:36 ` [PATCH v2 08/18] x86/sgx: Allow reclaiming up to 32 pages, but scan 16 by default Kristen Carlson Accardi
2022-12-08 9:26 ` Jarkko Sakkinen
2022-12-08 9:27 ` Jarkko Sakkinen
2022-12-02 18:36 ` [PATCH v2 09/18] x86/sgx: Return the number of EPC pages that were successfully reclaimed Kristen Carlson Accardi
2022-12-08 9:30 ` Jarkko Sakkinen
2022-12-02 18:36 ` [PATCH v2 10/18] x86/sgx: Add option to ignore age of page during EPC reclaim Kristen Carlson Accardi
2022-12-08 9:37 ` Jarkko Sakkinen
2022-12-02 18:36 ` [PATCH v2 11/18] x86/sgx: Prepare for multiple LRUs Kristen Carlson Accardi
2022-12-08 9:42 ` Jarkko Sakkinen
2022-12-02 18:36 ` [PATCH v2 12/18] x86/sgx: Expose sgx_reclaim_pages() for use by EPC cgroup Kristen Carlson Accardi
2022-12-08 9:46 ` Jarkko Sakkinen
2022-12-02 18:36 ` [PATCH v2 13/18] x86/sgx: Add helper to grab pages from an arbitrary EPC LRU Kristen Carlson Accardi
2022-12-08 9:56 ` Jarkko Sakkinen
2022-12-02 18:36 ` [PATCH v2 14/18] x86/sgx: Add EPC OOM path to forcefully reclaim EPC Kristen Carlson Accardi
2022-12-08 15:21 ` Jarkko Sakkinen
2022-12-09 16:05 ` Kristen Carlson Accardi
2022-12-09 16:22 ` Dave Hansen
2022-12-12 18:09 ` Sean Christopherson
2022-12-26 20:43 ` Jarkko Sakkinen
2022-12-02 18:36 ` [PATCH v2 15/18] cgroup/misc: Add per resource callbacks for css events Kristen Carlson Accardi
2022-12-08 14:53 ` Jarkko Sakkinen
2022-12-08 15:15 ` Jarkko Sakkinen
2022-12-02 18:36 ` [PATCH v2 16/18] cgroup/misc: Prepare for SGX usage Kristen Carlson Accardi
2022-12-08 15:23 ` Jarkko Sakkinen
2022-12-02 18:36 ` [PATCH v2 17/18] x86/sgx: Add support for misc cgroup controller Kristen Carlson Accardi
2022-12-08 15:30 ` Jarkko Sakkinen
2022-12-02 18:36 ` [PATCH v2 18/18] Docs/x86/sgx: Add description for cgroup support Kristen Carlson Accardi
2023-04-03 21:26 ` [EXTERNAL] [PATCH v2 00/18] Add Cgroup support for SGX EPC memory Anand Krishnamoorthi
2023-04-13 18:49 ` Anand Krishnamoorthi
2023-04-18 16:44 ` Mikko Ylinen
2023-04-27 16:53 ` Anand Krishnamoorthi
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