From: Suresh Siddha <suresh.b.siddha@intel.com>
To: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>,
Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>, Jack Steiner <steiner@sgi.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86: add apic probe for genapic 64bit v2
Date: Tue, 22 Jul 2008 12:17:09 -0700 [thread overview]
Message-ID: <20080722191708.GE14380@linux-os.sc.intel.com> (raw)
In-Reply-To: <86802c440807221140o20dcc31fjc10f86a22a1125bb@mail.gmail.com>
On Tue, Jul 22, 2008 at 11:40:13AM -0700, Yinghai Lu wrote:
> could be apic mode is set to phys flat mode by BIOS.
>
> get
> APIC error (0x40)...
Does this happen while sending IPI's? AP bringup should be same
irrespective of the genapic mode we select here.
> that is the reason for introducing max_phys_apicid.
We may need a workaround if it is some cpu/platform specific issue. But we
need to understand the actual issue and document it properly, so that
it doesn't break in the future.
thanks,
suresh
next prev parent reply other threads:[~2008-07-22 19:17 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-22 1:36 [PATCH] x86: add apic probe for genapic 64bit Yinghai Lu
2008-07-22 5:08 ` [PATCH] x86: add apic probe for genapic 64bit v2 Yinghai Lu
2008-07-22 7:07 ` Ingo Molnar
2008-07-22 7:13 ` Ingo Molnar
2008-07-22 8:09 ` Yinghai Lu
2008-07-22 8:24 ` Ingo Molnar
2008-07-22 8:26 ` Yinghai Lu
2008-07-22 16:31 ` Mike Travis
2008-07-22 17:57 ` Suresh Siddha
2008-07-22 18:05 ` Yinghai Lu
2008-07-22 18:10 ` Suresh Siddha
2008-07-22 18:40 ` Yinghai Lu
2008-07-22 19:17 ` Suresh Siddha [this message]
2008-07-22 20:20 ` [PATCH] x86: move declaring x2apic_extra_bits Yinghai Lu
2008-07-24 11:00 ` Ingo Molnar
2008-07-26 2:39 ` [PATCH] x86: add apic probe for genapic 64bit - fix Yinghai Lu
2008-07-26 14:32 ` Ingo Molnar
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