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From: Steffen Persvold <sp@numascale.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Daniel J Blueman <daniel@numascale-asia.com>,
	Jesse Barnes <jbarnes@virtuousgeek.org>,
	Ingo Molnar <mingo@redhat.com>,
	linux-kernel@vger.kernel.org, x86@kernel.org
Subject: Re: [PATCH 2/3] Add multi-node boot support
Date: Thu, 27 Oct 2011 13:42:40 +0200	[thread overview]
Message-ID: <4EA943B0.4050107@numascale.com> (raw)
In-Reply-To: <20111027113819.GA19682@elte.hu>

On 10/27/2011 13:38, Ingo Molnar wrote:
>
> * Steffen Persvold<sp@numascale.com>  wrote:
>
>>> If it's absolutely needed then add a proper quirk handler instead
>>> of polluting the generic code.
>>
>> We wanted to reuse as much of the generic AMD code as possible, but
>> it's tricky because most of that code is based around a single HT
>> fabric design, whereas a NumaChip based systems consists of several
>> HT fabrics connected together thus you will have identical
>> NorthBridge IDs (0-7) etc. shared between all systems.
>>
>> How would you suggest we add a quirk handler for it ?
>
> So what we want on NumaChip systems is for the node ID in the BIOS
> SRAT table to override the node ID that is read from the hardware,
> right?

Correct. Our bootloader modifies the SRAT table with the new IDs, and 
initializes all processors with new real APIC IDs but we can't do 
anything with the initial APIC ID.

Cheers,
-- 
Steffen Persvold, Chief Architect NumaChip
Numascale AS - www.numascale.com
Tel: +47 92 49 25 54 Skype: spersvold

  reply	other threads:[~2011-10-27 11:42 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-26  6:07 [PATCH 1/3] Add Numachip APIC support Daniel J Blueman
2011-10-26  6:07 ` [PATCH 2/3] Add multi-node boot support Daniel J Blueman
2011-10-27  7:30   ` Ingo Molnar
2011-10-27 10:46     ` Steffen Persvold
2011-10-27 11:38       ` Ingo Molnar
2011-10-27 11:42         ` Steffen Persvold [this message]
2011-12-02 18:31         ` Daniel J Blueman
2011-12-05  8:20           ` [PATCH 1/3] Make flat_init_apic_ldr available Daniel J Blueman
2011-12-05  8:20             ` [PATCH 2/3] v2: Add x86_init platform override to fix up core numbering Daniel J Blueman
2011-12-05 17:58               ` [tip:x86/apic] x86: Add x86_init platform override to fix up NUMA " tip-bot for Daniel J Blueman
2011-12-06  6:30               ` [tip:x86/apic] x86: Fix the !CONFIG_NUMA build of the new CPU ID fixup code support tip-bot for Steffen Persvold
2011-12-05  8:20             ` [PATCH 3/3] v4: Add support for Numascale's NumaChip Daniel J Blueman
2011-12-05  9:10               ` Ingo Molnar
2011-12-05  9:49                 ` Steffen Persvold
2011-12-05 16:07                   ` [PATCH 3/3] v5: Add NumaChip support Daniel J Blueman
2011-12-05 17:59                     ` [tip:x86/apic] x86: " tip-bot for Steffen Persvold
2011-12-05 20:31                       ` Ingo Molnar
2011-12-06  0:10                         ` Steffen Persvold
2011-12-06  5:50                           ` Ingo Molnar
2011-12-06  6:09                             ` Steffen Persvold
2011-12-08 22:35                             ` Kevin Winchester
2011-12-09  1:24                               ` Steffen Persvold
2011-12-09  7:22                               ` Ingo Molnar
2011-12-10  1:52                                 ` Kevin Winchester
2011-12-10  2:28                                   ` Kevin Winchester
2011-12-18  9:44                                   ` Ingo Molnar
2011-12-19  0:12                             ` [PATCH] x86: Simplify code by allowing more of struct cpuinfo_x86 for the !SMP case Kevin Winchester
2011-12-19 14:07                               ` [tip:x86/apic] " tip-bot for Kevin Winchester
2011-12-19 18:47                                 ` Ingo Molnar
2011-12-21  0:52                                   ` [PATCH] " Kevin Winchester
2011-12-21  8:48                                     ` [tip:x86/apic] x86: Simplify code by removing a !SMP #ifdefs from 'struct cpuinfo_x86' tip-bot for Kevin Winchester
2011-12-05 17:57             ` [tip:x86/apic] x86: Make flat_init_apic_ldr() available tip-bot for Daniel J Blueman
2011-10-26  6:07 ` [PATCH 3/3] Add NumaChip quirk Daniel J Blueman
2011-10-27  7:26 ` [PATCH 1/3] Add Numachip APIC support Ingo Molnar
2011-10-27  7:35 ` Ingo Molnar
2011-10-27  7:44 ` Ingo Molnar
2011-10-27 10:31   ` Steffen Persvold
  -- strict thread matches above, loose matches on Subject: below --
2011-10-18  8:22 Daniel J Blueman
2011-10-18  8:22 ` [PATCH 2/3] Add multi-node boot support Daniel J Blueman
2011-07-22 10:44 [PATCH 1/3] Add Numachip APIC support Daniel J Blueman
2011-07-22 10:44 ` [PATCH 2/3] Add multi-node boot support Daniel J Blueman

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