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
next prev parent 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4EA943B0.4050107@numascale.com \
--to=sp@numascale.com \
--cc=daniel@numascale-asia.com \
--cc=hpa@zytor.com \
--cc=jbarnes@virtuousgeek.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=mingo@redhat.com \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome