From: Yong Wang <yong.y.wang@linux.intel.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>,
mingo@elte.hu, hpa@zytor.com, tglx@linutronix.de,
akpm@linux-foundation.org, arjan@linux.intel.com,
andi@firstfloor.org, jbarnes@virtuousgeek.org, steiner@sgi.com,
linux-kernel@vger.kernel.org
Subject: Re: [patch 26/26] x64, x2apic/intr-remap: introduce CONFIG_INTR_REMAP
Date: Thu, 10 Jul 2008 19:37:33 -0400 [thread overview]
Message-ID: <20080710233733.GA21085@ywang-dev> (raw)
In-Reply-To: <m1r6a1fhc8.fsf@frodo.ebiederm.org>
> Is it possible to run in x2apic mode without running in interrupt remapping mode?
> Just send the irqs directly to the cpu? It feels like it should be if an iommu
> doesn't get in the way.
>
Yes, it is possible to run in x2apic mode without intr-remap. However, the extended
cpu addressability will not be fully utilized that way.
next prev parent reply other threads:[~2008-07-10 23:44 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-10 18:16 [patch 00/26] x64, x2apic/intr-remap: Interrupt-remapping and x2apic support Suresh Siddha
2008-07-10 18:16 ` [patch 01/26] x64, x2apic/intr-remap: Intel vt-d, IOMMU code reorganization Suresh Siddha
2008-07-10 18:16 ` [patch 02/26] x64, x2apic/intr-remap: fix the need for sequential array allocation of iommus Suresh Siddha
2008-07-10 18:16 ` [patch 03/26] x64, x2apic/intr-remap: code re-structuring, to be used by both DMA and Interrupt remapping Suresh Siddha
2008-07-10 18:16 ` [patch 04/26] x64, x2apic/intr-remap: use CONFIG_DMAR for DMA-remapping specific code Suresh Siddha
2008-07-10 18:16 ` [patch 05/26] x64, x2apic/intr-remap: Fix the need for RMRR in the DMA-remapping detection Suresh Siddha
2008-07-10 18:16 ` [patch 06/26] x64, x2apic/intr-remap: parse ioapic scope under vt-d structures Suresh Siddha
2008-07-10 18:16 ` [patch 07/26] x64, x2apic/intr-remap: move IOMMU_WAIT_OP() macro to intel-iommu.h Suresh Siddha
2008-07-10 18:16 ` [patch 08/26] x64, x2apic/intr-remap: Queued invalidation infrastructure (part of VT-d) Suresh Siddha
2008-07-10 18:16 ` [patch 09/26] x64, x2apic/intr-remap: Interrupt remapping infrastructure Suresh Siddha
2008-07-10 18:16 ` [patch 10/26] x64, x2apic/intr-remap: routines managing Interrupt remapping table entries Suresh Siddha
2008-07-10 18:16 ` [patch 11/26] x64, x2apic/intr-remap: generic irq migration support from process context Suresh Siddha
2008-07-10 23:08 ` Eric W. Biederman
2008-07-11 5:41 ` Suresh Siddha
2008-07-11 9:19 ` Eric W. Biederman
2008-07-10 18:16 ` [patch 12/26] x64, x2apic/intr-remap: 8259 specific mask/unmask routines Suresh Siddha
2008-07-10 18:16 ` [patch 13/26] x64, x2apic/intr-remap: ioapic routines which deal with initial io-apic RTE setup Suresh Siddha
2008-07-10 18:16 ` [patch 14/26] x64, x2apic/intr-remap: introduce read_apic_id() to genapic routines Suresh Siddha
2008-07-10 18:16 ` [patch 15/26] x64, x2apic/intr-remap: basic apic ops support Suresh Siddha
2008-07-10 18:16 ` [patch 16/26] x64, x2apic/intr-remap: cpuid bits for x2apic feature Suresh Siddha
2008-07-10 18:16 ` [patch 17/26] x64, x2apic/intr-remap: disable DMA-remapping if Interrupt-remapping is detected (temporary quirk) Suresh Siddha
2008-07-10 18:16 ` [patch 18/26] x64, x2apic/intr-remap: x2apic ops for x2apic mode support Suresh Siddha
2008-07-10 18:16 ` [patch 19/26] x64, x2apic/intr-remap: introcude self IPI to genapic routines Suresh Siddha
2008-07-10 23:34 ` Eric W. Biederman
2008-07-11 2:29 ` Mike Travis
2008-07-11 3:50 ` Eric W. Biederman
2008-07-11 13:55 ` Mike Travis
2008-07-10 18:16 ` [patch 20/26] x64, x2apic/intr-remap: x2apic cluster mode support Suresh Siddha
2008-07-10 18:16 ` [patch 21/26] x64, x2apic/intr-remap: setup init_apic_ldr for UV Suresh Siddha
2008-07-11 0:14 ` Andrew Morton
2008-07-11 1:56 ` Suresh Siddha
2008-07-10 18:16 ` [patch 22/26] x64, x2apic/intr-remap: IO-APIC support for interrupt-remapping Suresh Siddha
2008-07-10 18:16 ` [patch 23/26] x64, x2apic/intr-remap: MSI and MSI-X support for interrupt remapping infrastructure Suresh Siddha
2008-07-11 1:22 ` Eric W. Biederman
2008-07-11 6:07 ` Suresh Siddha
2008-07-11 8:59 ` Eric W. Biederman
2008-07-11 23:07 ` Suresh Siddha
2008-07-11 23:50 ` Eric W. Biederman
2008-07-10 18:16 ` [patch 24/26] x64, x2apic/intr-remap: add x2apic support, including enabling interrupt-remapping Suresh Siddha
2008-07-10 18:16 ` [patch 25/26] x64, x2apic/intr-remap: support for x2apic physical mode support Suresh Siddha
2008-07-10 18:17 ` [patch 26/26] x64, x2apic/intr-remap: introduce CONFIG_INTR_REMAP Suresh Siddha
2008-07-10 23:29 ` Eric W. Biederman
2008-07-10 23:37 ` Yong Wang [this message]
2008-07-11 1:50 ` Suresh Siddha
2008-07-11 1:53 ` Eric W. Biederman
2008-07-10 19:53 ` [patch 00/26] x64, x2apic/intr-remap: Interrupt-remapping and x2apic support Ingo Molnar
2008-07-10 20:22 ` Suresh Siddha
2008-07-10 21:56 ` Suresh Siddha
2008-07-11 10:28 ` Ingo Molnar
2008-07-11 20:09 ` Ingo Molnar
2008-07-11 20:31 ` Suresh Siddha
2008-07-11 20:42 ` Yinghai Lu
2008-07-11 20:45 ` Ingo Molnar
2008-07-11 21:24 ` Suresh Siddha
2008-07-11 22:02 ` Yinghai Lu
2008-07-12 3:16 ` Yinghai Lu
2008-07-12 3:52 ` Eric W. Biederman
2008-07-12 6:17 ` Yinghai Lu
2008-07-12 7:02 ` Eric W. Biederman
2008-07-12 7:49 ` Yinghai Lu
2008-07-12 8:11 ` Eric W. Biederman
2008-07-12 8:37 ` Yinghai Lu
2008-07-12 9:46 ` Eric W. Biederman
2008-07-13 1:02 ` Suresh Siddha
2008-07-13 1:01 ` Suresh Siddha
2008-07-13 1:32 ` Suresh Siddha
2008-07-13 1:00 ` Suresh Siddha
2008-07-13 0:55 ` Suresh Siddha
2008-07-12 5:37 ` Ingo Molnar
2008-07-12 6:06 ` Yinghai Lu
2008-07-12 6:45 ` Ingo Molnar
2008-07-11 20:49 ` Ingo Molnar
2008-07-16 14:37 ` Yong Wang
2008-07-16 14:53 ` Ingo Molnar
2008-07-22 20:49 ` Andrew Morton
2008-07-22 21:00 ` Mike Travis
2008-07-22 21:14 ` Andrew Morton
2008-07-24 5:03 ` Ingo Molnar
2008-07-10 20:05 ` Eric W. Biederman
2008-07-10 20:18 ` Ingo Molnar
2008-07-10 21:07 ` Eric W. Biederman
2008-07-10 21:15 ` Suresh Siddha
2008-07-10 22:52 ` Eric W. Biederman
2008-07-11 2:35 ` Suresh Siddha
2008-07-11 3:15 ` Eric W. Biederman
2008-07-10 22:09 ` Arjan van de Ven
2008-07-10 22:54 ` Eric W. Biederman
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