From: <Mario.Limonciello@dell.com>
To: <mika.westerberg@linux.intel.com>, <lorenzo.pieralisi@arm.com>
Cc: <lukas@wunner.de>, <iommu@lists.linux-foundation.org>,
<joro@8bytes.org>, <dwmw2@infradead.org>,
<baolu.lu@linux.intel.com>, <ashok.raj@intel.com>,
<bhelgaas@google.com>, <rjw@rjwysocki.net>,
<jacob.jun.pan@intel.com>, <andreas.noever@gmail.com>,
<michael.jamet@intel.com>, <YehezkelShB@gmail.com>,
<ckellner@redhat.com>, <anthony.wong@canonical.com>,
<linux-acpi@vger.kernel.org>, <linux-pci@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: RE: [PATCH 1/4] PCI / ACPI: Identify external PCI devices
Date: Thu, 15 Nov 2018 19:33:54 +0000 [thread overview]
Message-ID: <372db397d5384efd8e7264ba8e1b9cbd@ausx13mpc120.AMER.DELL.COM> (raw)
In-Reply-To: <20181115190054.GD4179@lahna.fi.intel.com>
> -----Original Message-----
> From: Mika Westerberg <mika.westerberg@linux.intel.com>
> Sent: Thursday, November 15, 2018 1:01 PM
> To: Lorenzo Pieralisi
> Cc: Lukas Wunner; iommu@lists.linux-foundation.org; Joerg Roedel; David
> Woodhouse; Lu Baolu; Ashok Raj; Bjorn Helgaas; Rafael J. Wysocki; Jacob jun Pan;
> Andreas Noever; Michael Jamet; Yehezkel Bernat; Christian Kellner; Limonciello,
> Mario; Anthony Wong; linux-acpi@vger.kernel.org; linux-pci@vger.kernel.org; linux-
> kernel@vger.kernel.org
> Subject: Re: [PATCH 1/4] PCI / ACPI: Identify external PCI devices
>
>
> [EXTERNAL EMAIL]
>
> On Thu, Nov 15, 2018 at 05:46:08PM +0000, Lorenzo Pieralisi wrote:
> > Do you really need to parse it if the dev->is_thunderbolt check is enough ?
>
> Yes, we need to parse it one way or another. dev->is_thunderbolt is
> based on heuristics which do not apply anymore when the thing gets
> integrated in the SoC.
>
> The _DSD is there already (on existing systems) and is being used by
> Windows so I don't understand why we cannot take advantage of it? Every
> new system with Thunderbolt ports will have it.
Furthermore it's entirely in the BIOS writers best interest to do this correctly
as it applies proper policy on Windows as well.
I wouldn't be surprised if WHCK failed if it was done wrong.
next prev parent reply other threads:[~2018-11-15 19:34 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-12 16:06 [PATCH 0/4] PCI / iommu / thunderbolt: IOMMU based DMA protection Mika Westerberg
2018-11-12 16:06 ` [PATCH 1/4] PCI / ACPI: Identify external PCI devices Mika Westerberg
2018-11-12 18:02 ` Lukas Wunner
2018-11-13 10:56 ` Lorenzo Pieralisi
2018-11-13 11:27 ` Mika Westerberg
2018-11-13 11:45 ` Lorenzo Pieralisi
2018-11-15 10:22 ` Mika Westerberg
2018-11-15 11:13 ` Lorenzo Pieralisi
2018-11-15 11:37 ` Mika Westerberg
2018-11-15 12:07 ` Lukas Wunner
2018-11-15 12:16 ` Mika Westerberg
2018-11-15 17:46 ` Lorenzo Pieralisi
2018-11-15 17:58 ` Yehezkel Bernat
2018-11-15 19:10 ` Mika Westerberg
2018-11-15 19:27 ` Lukas Wunner
2018-11-15 19:32 ` Mika Westerberg
2018-11-16 9:18 ` Christoph Hellwig
2018-11-16 9:32 ` Mika Westerberg
2018-11-22 10:48 ` Mika Westerberg
2018-11-22 10:59 ` Christoph Hellwig
2018-11-15 19:00 ` Mika Westerberg
2018-11-15 19:33 ` Mario.Limonciello [this message]
2018-11-16 10:57 ` Lorenzo Pieralisi
2018-11-20 21:43 ` Rafael J. Wysocki
2018-11-21 12:40 ` Lorenzo Pieralisi
2018-11-16 7:01 ` Mika Westerberg
2018-11-12 16:06 ` [PATCH 2/4] iommu/vt-d: Force IOMMU on for platform opt in hint Mika Westerberg
2018-11-12 17:49 ` Raj, Ashok
2018-11-12 18:09 ` Alex Williamson
2018-11-12 19:51 ` Raj, Ashok
2018-11-12 16:06 ` [PATCH 3/4] iommu/vt-d: Do not enable ATS for external devices Mika Westerberg
2018-11-12 17:53 ` Raj, Ashok
2018-11-12 16:06 ` [PATCH 4/4] thunderbolt: Export IOMMU based DMA protection support to userspace Mika Westerberg
2018-11-12 16:22 ` Mario.Limonciello
2018-11-13 10:36 ` Mika Westerberg
2018-11-12 16:59 ` Yehezkel Bernat
2018-11-13 10:55 ` Mika Westerberg
2018-11-13 11:13 ` Yehezkel Bernat
2018-11-13 11:40 ` Mika Westerberg
2018-11-13 14:42 ` Yehezkel Bernat
[not found] ` <20181113152038.GD2500@lahna.fi.intel.com>
2018-11-13 15:38 ` Yehezkel Bernat
2018-11-13 16:12 ` Mika Westerberg
2018-11-12 18:12 ` [PATCH 0/4] PCI / iommu / thunderbolt: IOMMU based DMA protection Lukas Wunner
2018-11-12 19:04 ` Yehezkel Bernat
2018-11-13 11:13 ` Mika Westerberg
2018-11-13 8:54 ` Joerg Roedel
2018-11-13 11:32 ` Mika Westerberg
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