LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Christoph Hellwig <hch@infradead.org>
To: Lu Baolu <baolu.lu@linux.intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>,
Joerg Roedel <joro@8bytes.org>,
kevin.tian@intel.com, ashok.raj@intel.com, dima@arista.com,
tmurphy@arista.com, linux-kernel@vger.kernel.org,
iommu@lists.linux-foundation.org, jacob.jun.pan@intel.com
Subject: Re: [PATCH v4 10/15] iommu/vt-d: Probe DMA-capable ACPI name space devices
Date: Tue, 28 May 2019 23:16:26 -0700 [thread overview]
Message-ID: <20190529061626.GA26055@infradead.org> (raw)
In-Reply-To: <20190525054136.27810-11-baolu.lu@linux.intel.com>
On Sat, May 25, 2019 at 01:41:31PM +0800, Lu Baolu wrote:
> Some platforms may support ACPI name-space enumerated devices
> that are capable of generating DMA requests. Platforms which
> support DMA remapping explicitly declares any such DMA-capable
> ACPI name-space devices in the platform through ACPI Name-space
> Device Declaration (ANDD) structure and enumerate them through
> the Device Scope of the appropriate remapping hardware unit.
>
> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Isn't this something that should be handled through the IOMMU API so
that it covers other IOMMU types as well?
How does this scheme compare to the one implemented in
drivers/acpi/arm64/iort.c?
next prev parent reply other threads:[~2019-05-29 6:16 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-25 5:41 [PATCH v4 00/15] iommu/vt-d: Delegate DMA domain to generic iommu Lu Baolu
2019-05-25 5:41 ` [PATCH v4 01/15] iommu: Add API to request DMA domain for device Lu Baolu
2019-05-25 5:41 ` [PATCH v4 02/15] iommu/vt-d: Implement apply_resv_region iommu ops entry Lu Baolu
2019-05-25 5:41 ` [PATCH v4 03/15] iommu/vt-d: Expose ISA direct mapping region via iommu_get_resv_regions Lu Baolu
2019-05-25 5:41 ` [PATCH v4 04/15] iommu/vt-d: Enable DMA remapping after rmrr mapped Lu Baolu
2019-05-25 5:41 ` [PATCH v4 05/15] iommu/vt-d: Add device_def_domain_type() helper Lu Baolu
2019-05-25 5:41 ` [PATCH v4 06/15] iommu/vt-d: Delegate the identity domain to upper layer Lu Baolu
2019-05-25 5:41 ` [PATCH v4 07/15] iommu/vt-d: Delegate the dma " Lu Baolu
2020-08-21 18:33 ` Chris Wilson
2020-08-24 6:31 ` Lu Baolu
2020-08-24 8:35 ` Chris Wilson
2020-08-25 3:13 ` Lu Baolu
2019-05-25 5:41 ` [PATCH v4 08/15] iommu/vt-d: Identify default domains replaced with private Lu Baolu
2019-05-25 5:41 ` [PATCH v4 09/15] iommu/vt-d: Handle 32bit device with identity default domain Lu Baolu
2019-05-25 5:41 ` [PATCH v4 10/15] iommu/vt-d: Probe DMA-capable ACPI name space devices Lu Baolu
2019-05-29 6:16 ` Christoph Hellwig [this message]
2019-06-03 0:35 ` Lu Baolu
2019-05-25 5:41 ` [PATCH v4 11/15] iommu/vt-d: Implement is_attach_deferred iommu ops entry Lu Baolu
2019-05-25 5:41 ` [PATCH v4 12/15] iommu/vt-d: Cleanup get_valid_domain_for_dev() Lu Baolu
2019-07-18 3:12 ` Alex Williamson
2019-07-19 9:04 ` Lu Baolu
2019-07-19 15:23 ` Alex Williamson
2019-08-02 1:30 ` Alex Williamson
2019-08-02 7:17 ` Lu Baolu
2019-08-02 16:54 ` Alex Williamson
2019-08-04 3:16 ` Lu Baolu
2019-08-06 0:06 ` Lu Baolu
2019-05-25 5:41 ` [PATCH v4 13/15] iommu/vt-d: Remove startup parameter from device_def_domain_type() Lu Baolu
2019-05-25 5:41 ` [PATCH v4 14/15] iommu/vt-d: Remove duplicated code for device hotplug Lu Baolu
2019-05-25 5:41 ` [PATCH v4 15/15] iommu/vt-d: Remove static identity map code Lu Baolu
2019-05-27 15:00 ` [PATCH v4 00/15] iommu/vt-d: Delegate DMA domain to generic iommu Joerg Roedel
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=20190529061626.GA26055@infradead.org \
--to=hch@infradead.org \
--cc=ashok.raj@intel.com \
--cc=baolu.lu@linux.intel.com \
--cc=dima@arista.com \
--cc=dwmw2@infradead.org \
--cc=iommu@lists.linux-foundation.org \
--cc=jacob.jun.pan@intel.com \
--cc=joro@8bytes.org \
--cc=kevin.tian@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=tmurphy@arista.com \
--subject='Re: [PATCH v4 10/15] iommu/vt-d: Probe DMA-capable ACPI name space devices' \
/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
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).