From: "joro@8bytes.org" <joro@8bytes.org>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: Bhushan Bharat-R65777 <R65777@freescale.com>,
"alex.williamson@redhat.com" <alex.williamson@redhat.com>,
"benh@kernel.crashing.org" <benh@kernel.crashing.org>,
"galak@kernel.crashing.org" <galak@kernel.crashing.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"agraf@suse.de" <agraf@suse.de>,
Wood Scott-B07421 <B07421@freescale.com>,
"iommu@lists.linux-foundation.org"
<iommu@lists.linux-foundation.org>
Subject: Re: [PATCH 1/7] powerpc: Add interface to get msi region information
Date: Tue, 8 Oct 2013 19:02:28 +0200 [thread overview]
Message-ID: <20131008170228.GD17455@8bytes.org> (raw)
In-Reply-To: <CAErSpo742BOxzxRaFQn+UnsNday4_8LM6+3G6=cfp9DHecPxDg@mail.gmail.com>
On Tue, Oct 08, 2013 at 10:47:49AM -0600, Bjorn Helgaas wrote:
> I still have no idea what an "aperture type IOMMU" is,
> other than that it is "different."
An aperture based IOMMU is basically any GART-like IOMMU which can only
remap a small window (the aperture) of the DMA address space. DMA
outside of that window is either blocked completly or passed through
untranslated.
Joerg
WARNING: multiple messages have this Message-ID (diff)
From: "joro@8bytes.org" <joro@8bytes.org>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: "agraf@suse.de" <agraf@suse.de>,
Wood Scott-B07421 <B07421@freescale.com>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"iommu@lists.linux-foundation.org"
<iommu@lists.linux-foundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"alex.williamson@redhat.com" <alex.williamson@redhat.com>,
Bhushan Bharat-R65777 <R65777@freescale.com>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH 1/7] powerpc: Add interface to get msi region information
Date: Tue, 8 Oct 2013 19:02:28 +0200 [thread overview]
Message-ID: <20131008170228.GD17455@8bytes.org> (raw)
In-Reply-To: <CAErSpo742BOxzxRaFQn+UnsNday4_8LM6+3G6=cfp9DHecPxDg@mail.gmail.com>
On Tue, Oct 08, 2013 at 10:47:49AM -0600, Bjorn Helgaas wrote:
> I still have no idea what an "aperture type IOMMU" is,
> other than that it is "different."
An aperture based IOMMU is basically any GART-like IOMMU which can only
remap a small window (the aperture) of the DMA address space. DMA
outside of that window is either blocked completly or passed through
untranslated.
Joerg
next prev parent reply other threads:[~2013-10-08 17:02 UTC|newest]
Thread overview: 128+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-19 7:29 [PATCH 0/7] vfio-pci: add support for Freescale IOMMU (PAMU) Bharat Bhushan
2013-09-19 7:29 ` Bharat Bhushan
2013-09-19 7:29 ` [PATCH 1/7] powerpc: Add interface to get msi region information Bharat Bhushan
2013-09-19 7:29 ` Bharat Bhushan
2013-09-19 7:29 ` Bharat Bhushan
2013-09-24 23:58 ` Bjorn Helgaas
2013-09-24 23:58 ` Bjorn Helgaas
[not found] ` <20130924235812.GD9302-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2013-10-04 5:19 ` Bhushan Bharat-R65777
2013-10-04 5:19 ` Bhushan Bharat-R65777
2013-10-04 5:19 ` Bhushan Bharat-R65777
2013-10-08 16:47 ` Bjorn Helgaas
2013-10-08 16:47 ` Bjorn Helgaas
2013-10-08 17:02 ` joro [this message]
2013-10-08 17:02 ` joro
[not found] ` <20131008170228.GD17455-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2013-10-08 17:09 ` Bhushan Bharat-R65777
2013-10-08 17:09 ` Bhushan Bharat-R65777
2013-10-08 17:09 ` Bhushan Bharat-R65777
2013-10-10 21:13 ` Sethi Varun-B16395
2013-10-10 21:13 ` Sethi Varun-B16395
[not found] ` <CAErSpo742BOxzxRaFQn+UnsNday4_8LM6+3G6=cfp9DHecPxDg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-10-08 17:09 ` Scott Wood
2013-10-08 17:09 ` Scott Wood
2013-10-08 17:09 ` Scott Wood
2013-10-08 22:57 ` Scott Wood
2013-10-08 22:57 ` Scott Wood
2013-10-08 22:57 ` Scott Wood
[not found] ` <1381273037.7979.298.camel-88ow+0ZRuxG2UiBs7uKeOtHuzzzSOjJt@public.gmane.org>
2013-10-08 23:25 ` Bjorn Helgaas
2013-10-08 23:25 ` Bjorn Helgaas
2013-10-08 23:25 ` Bjorn Helgaas
[not found] ` <CAErSpo7+7SHVcOJkHkW5cjb6pN+bqYeRdPBA=MVX0RLz=-pP6Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-10-08 23:35 ` Scott Wood
2013-10-08 23:35 ` Scott Wood
2013-10-08 23:35 ` Scott Wood
2013-10-09 4:47 ` Bhushan Bharat-R65777
2013-10-09 4:47 ` Bhushan Bharat-R65777
2013-10-09 4:47 ` Bhushan Bharat-R65777
2013-10-09 4:47 ` Bhushan Bharat-R65777
[not found] ` <1379575763-2091-1-git-send-email-Bharat.Bhushan-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2013-09-19 7:29 ` [PATCH 2/7] iommu: add api to get iommu_domain of a device Bharat Bhushan
2013-09-19 7:29 ` Bharat Bhushan
2013-09-19 7:29 ` Bharat Bhushan
[not found] ` <1379575763-2091-3-git-send-email-Bharat.Bhushan-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2013-09-25 16:45 ` Alex Williamson
2013-09-25 16:45 ` Alex Williamson
2013-09-25 16:45 ` Alex Williamson
2013-10-04 9:54 ` Bhushan Bharat-R65777
2013-10-04 9:54 ` Bhushan Bharat-R65777
2013-10-04 9:54 ` Bhushan Bharat-R65777
2013-10-04 9:54 ` Bhushan Bharat-R65777
[not found] ` <6A3DF150A5B70D4F9B66A25E3F7C888D0718FD1C-RL0Hj/+nBVCMXPU/2EZmt64g8xLGJsHaLnY5E4hWTkheoWH0uzbU5w@public.gmane.org>
2013-10-04 15:45 ` Alex Williamson
2013-10-04 15:45 ` Alex Williamson
2013-10-04 15:45 ` Alex Williamson
[not found] ` <1380901507.2673.204.camel-85EaTFmN5p//9pzu0YdTqQ@public.gmane.org>
2013-10-04 16:47 ` Bhushan Bharat-R65777
2013-10-04 16:47 ` Bhushan Bharat-R65777
2013-10-04 16:47 ` Bhushan Bharat-R65777
2013-10-04 16:47 ` Bhushan Bharat-R65777
[not found] ` <6A3DF150A5B70D4F9B66A25E3F7C888D07190F35-RL0Hj/+nBVCMXPU/2EZmt64g8xLGJsHaLnY5E4hWTkheoWH0uzbU5w@public.gmane.org>
2013-10-04 17:12 ` Alex Williamson
2013-10-04 17:12 ` Alex Williamson
2013-10-04 17:12 ` Alex Williamson
2013-10-04 17:23 ` Bhushan Bharat-R65777
2013-10-04 17:23 ` Bhushan Bharat-R65777
2013-10-04 17:23 ` Bhushan Bharat-R65777
2013-10-04 17:23 ` Bhushan Bharat-R65777
[not found] ` <6A3DF150A5B70D4F9B66A25E3F7C888D07191143-RL0Hj/+nBVCMXPU/2EZmt64g8xLGJsHaLnY5E4hWTkheoWH0uzbU5w@public.gmane.org>
2013-10-04 18:12 ` Alex Williamson
2013-10-04 18:12 ` Alex Williamson
2013-10-04 18:12 ` Alex Williamson
[not found] ` <1380910322.25705.56.camel-85EaTFmN5p//9pzu0YdTqQ@public.gmane.org>
2013-10-07 5:46 ` Bhushan Bharat-R65777
2013-10-07 5:46 ` Bhushan Bharat-R65777
2013-10-07 5:46 ` Bhushan Bharat-R65777
2013-10-07 5:46 ` Bhushan Bharat-R65777
[not found] ` <6A3DF150A5B70D4F9B66A25E3F7C888D0719385B-RL0Hj/+nBVCMXPU/2EZmt64g8xLGJsHaLnY5E4hWTkheoWH0uzbU5w@public.gmane.org>
2013-10-08 3:13 ` Alex Williamson
2013-10-08 3:13 ` Alex Williamson
2013-10-08 3:13 ` Alex Williamson
2013-10-08 3:42 ` Bhushan Bharat-R65777
2013-10-08 3:42 ` Bhushan Bharat-R65777
2013-10-08 3:42 ` Bhushan Bharat-R65777
2013-10-08 3:42 ` Bhushan Bharat-R65777
[not found] ` <1381201980.6330.4.camel-85EaTFmN5p//9pzu0YdTqQ@public.gmane.org>
2013-10-10 20:09 ` Sethi Varun-B16395
2013-10-10 20:09 ` Sethi Varun-B16395
2013-10-10 20:09 ` Sethi Varun-B16395
[not found] ` <C5ECD7A89D1DC44195F34B25E172658D0A52BAC7-RL0Hj/+nBVDYdknt8GnhQq4g8xLGJsHaLnY5E4hWTkheoWH0uzbU5w@public.gmane.org>
2013-10-10 20:41 ` Alex Williamson
2013-10-10 20:41 ` Alex Williamson
2013-10-10 20:41 ` Alex Williamson
2013-10-14 12:58 ` Sethi Varun-B16395
2013-10-14 12:58 ` Sethi Varun-B16395
2013-10-14 12:58 ` Sethi Varun-B16395
2013-10-14 12:58 ` Sethi Varun-B16395
[not found] ` <C5ECD7A89D1DC44195F34B25E172658D0A535437-RL0Hj/+nBVDYdknt8GnhQq4g8xLGJsHaLnY5E4hWTkheoWH0uzbU5w@public.gmane.org>
2013-10-14 14:20 ` Alex Williamson
2013-10-14 14:20 ` Alex Williamson
2013-10-14 14:20 ` Alex Williamson
2013-10-04 10:42 ` Bhushan Bharat-R65777
2013-10-04 10:42 ` Bhushan Bharat-R65777
2013-10-04 10:42 ` Bhushan Bharat-R65777
2013-10-04 10:42 ` Bhushan Bharat-R65777
2013-09-19 7:29 ` [PATCH 3/7] fsl iommu: add get_dev_iommu_domain Bharat Bhushan
2013-09-19 7:29 ` Bharat Bhushan
2013-09-19 7:29 ` [PATCH 4/7] powerpc: translate msi addr to iova if iommu is in use Bharat Bhushan
2013-09-19 7:29 ` Bharat Bhushan
2013-09-19 7:29 ` Bharat Bhushan
2013-09-19 7:29 ` [PATCH 5/7] iommu: supress loff_t compilation error on powerpc Bharat Bhushan
2013-09-19 7:29 ` Bharat Bhushan
2013-09-19 7:29 ` Bharat Bhushan
[not found] ` <1379575763-2091-6-git-send-email-Bharat.Bhushan-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2013-09-25 16:40 ` Alex Williamson
2013-09-25 16:40 ` Alex Williamson
2013-09-25 16:40 ` Alex Williamson
2013-09-26 3:53 ` Bhushan Bharat-R65777
2013-09-26 3:53 ` Bhushan Bharat-R65777
2013-09-26 3:53 ` Bhushan Bharat-R65777
2013-09-26 3:53 ` Bhushan Bharat-R65777
[not found] ` <6A3DF150A5B70D4F9B66A25E3F7C888D07183CA4-RL0Hj/+nBVCMXPU/2EZmt64g8xLGJsHaLnY5E4hWTkheoWH0uzbU5w@public.gmane.org>
2013-09-26 22:20 ` Scott Wood
2013-09-26 22:20 ` Scott Wood
2013-09-26 22:20 ` Scott Wood
2013-09-19 7:29 ` [PATCH 6/7] vfio: moving some functions in common file Bharat Bhushan
2013-09-19 7:29 ` Bharat Bhushan
2013-09-19 7:29 ` Bharat Bhushan
[not found] ` <1379575763-2091-7-git-send-email-Bharat.Bhushan-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2013-09-25 17:02 ` Alex Williamson
2013-09-25 17:02 ` Alex Williamson
2013-09-25 17:02 ` Alex Williamson
2013-09-26 3:57 ` Bhushan Bharat-R65777
2013-09-26 3:57 ` Bhushan Bharat-R65777
2013-09-26 3:57 ` Bhushan Bharat-R65777
2013-09-26 3:57 ` Bhushan Bharat-R65777
2013-09-19 7:29 ` [PATCH 7/7] vfio pci: Add vfio iommu implementation for FSL_PAMU Bharat Bhushan
2013-09-19 7:29 ` Bharat Bhushan
2013-09-19 7:29 ` Bharat Bhushan
[not found] ` <1379575763-2091-8-git-send-email-Bharat.Bhushan-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2013-09-25 19:06 ` Alex Williamson
2013-09-25 19:06 ` Alex Williamson
2013-09-25 19:06 ` Alex Williamson
2013-09-26 5:27 ` Bhushan Bharat-R65777
2013-09-26 5:27 ` Bhushan Bharat-R65777
2013-09-26 5:27 ` Bhushan Bharat-R65777
2013-09-26 5:27 ` Bhushan Bharat-R65777
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