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From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: Dave Hansen <dave.hansen@intel.com>
Cc: x86@kernel.org, platform-driver-x86@vger.kernel.org,
	sean.j.christopherson@intel.com, nhorman@redhat.com,
	npmccallum@redhat.com, linux-sgx@vger.kernel.org,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
	"open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)" 
	<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v12 07/13] x86/sgx: data structures for tracking available EPC pages
Date: Wed, 4 Jul 2018 20:34:48 +0300	[thread overview]
Message-ID: <20180704173448.GJ6724@linux.intel.com> (raw)
In-Reply-To: <48296e78-5979-a22f-c337-633deccf30bf@intel.com>

On Tue, Jul 03, 2018 at 12:03:48PM -0700, Dave Hansen wrote:
> On 07/03/2018 11:19 AM, Jarkko Sakkinen wrote:
> > This commit adds a database of EPC banks for kernel to easily access the
> > available EPC pages. On UMA architectures there is a singe bank of EPC
> > pages. On NUMA architectures there is an EPC bank for each node.
> 
> Is this universally true?  What about Sub-NUMA-Clustering/Cluster-on-Die
> systems?

I have to say that I do not have a good answer right now but I will
study this area for the next version.

/Jarkko

  reply	other threads:[~2018-07-04 17:34 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-03 18:19 [PATCH v12 00/13] Intel SGX1 support Jarkko Sakkinen
2018-07-03 18:19 ` [PATCH v12 01/13] x86/sgx: updated MAINTAINERS Jarkko Sakkinen
2018-07-03 18:41   ` Thomas Gleixner
2018-07-04 17:23     ` Jarkko Sakkinen
2018-07-03 18:19 ` [PATCH v12 02/13] x86/sgx: add SGX definitions to cpufeature Jarkko Sakkinen
2018-07-03 18:48   ` Thomas Gleixner
2018-07-04 17:24     ` Jarkko Sakkinen
2018-07-03 18:19 ` [PATCH v12 03/13] x86/sgx: add SGX definitions to msr-index.h Jarkko Sakkinen
2018-07-03 18:31   ` Dave Hansen
2018-07-04 17:25     ` Jarkko Sakkinen
2018-07-05 16:05     ` Jarkko Sakkinen
2018-07-05 16:08       ` Jarkko Sakkinen
2018-07-05 16:09       ` Dave Hansen
2018-07-03 18:51   ` Thomas Gleixner
2018-07-04 17:26     ` Jarkko Sakkinen
2018-07-03 18:19 ` [PATCH v12 04/13] x86/cpufeatures: add Intel-defined SGX leaf CPUID_12_EAX Jarkko Sakkinen
2018-07-03 18:54   ` Thomas Gleixner
2018-07-04 17:27     ` Jarkko Sakkinen
2018-07-03 18:19 ` [PATCH v12 05/13] x86/sgx: architectural structures Jarkko Sakkinen
2018-07-03 19:02   ` Dave Hansen
2018-07-04 18:03     ` Jarkko Sakkinen
2018-07-03 19:04   ` Thomas Gleixner
2018-07-04 18:07     ` Jarkko Sakkinen
2018-07-03 21:22   ` Dave Hansen
2018-07-04 18:09     ` Jarkko Sakkinen
2018-07-05 15:31   ` Dave Hansen
2018-07-05 20:09     ` Jarkko Sakkinen
2018-07-05 21:50       ` hpa
2018-07-10  8:06         ` Andy Shevchenko
2018-07-10 11:57           ` Thomas Gleixner
2018-07-03 18:19 ` [PATCH v12 06/13] x86/sgx: detect Intel SGX Jarkko Sakkinen
2018-07-03 19:09   ` Thomas Gleixner
2018-07-04 17:28     ` Jarkko Sakkinen
2018-07-03 18:19 ` [PATCH v12 07/13] x86/sgx: data structures for tracking available EPC pages Jarkko Sakkinen
2018-07-03 19:03   ` Dave Hansen
2018-07-04 17:34     ` Jarkko Sakkinen [this message]
2018-07-03 19:46   ` Thomas Gleixner
2018-07-03 20:26     ` Randy Dunlap
2018-07-03 20:44       ` Thomas Gleixner
2018-07-04 17:36       ` Jarkko Sakkinen
2018-07-03 18:19 ` [PATCH v12 08/13] x86/sgx: wrappers for ENCLS opcode leaf functions Jarkko Sakkinen
2018-07-03 20:16   ` Thomas Gleixner
2018-07-04 17:33     ` Jarkko Sakkinen
2018-07-03 18:19 ` [PATCH v12 09/13] x86/sgx: EPC page allocation routines Jarkko Sakkinen
2018-07-03 20:41   ` Thomas Gleixner
2018-07-04  4:25     ` Borislav Petkov
2018-07-05 18:21       ` Jarkko Sakkinen
2018-07-04 18:24     ` Jarkko Sakkinen
2018-07-03 18:19 ` [PATCH v12 10/13] x86/sgx: sgx_einit() Jarkko Sakkinen
2018-07-03 18:19 ` [PATCH v12 11/13] platform/x86: Intel SGX driver Jarkko Sakkinen
2018-07-25 15:52   ` Jethro Beekman
2018-07-28 13:23     ` Jarkko Sakkinen
2018-07-03 18:19 ` [PATCH v12 12/13] platform/x86: ptrace() support for the " Jarkko Sakkinen
2018-07-03 18:19 ` [PATCH v12 13/13] x86/sgx: driver documentation Jarkko Sakkinen

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