From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Bjorn Helgaas <helgaas@kernel.org>
Cc: Rajat Jain <rajatja@google.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Len Brown <lenb@kernel.org>, Bjorn Helgaas <bhelgaas@google.com>,
linux-acpi@vger.kernel.org, linux-pci@vger.kernel.org,
linux-kernel@vger.kernel.org, rajatxjain@gmail.com,
dtor@google.com, jsbarnes@google.com,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jean-Philippe Brucker <jean-philippe@linaro.org>,
Pavel Machek <pavel@denx.de>,
Oliver O'Halloran <oohall@gmail.com>,
Joerg Roedel <joro@8bytes.org>
Subject: Re: [PATCH] PCI: ACPI: Allow internal devices to be marked as untrusted
Date: Tue, 25 Jan 2022 12:58:52 +0200 [thread overview]
Message-ID: <Ye/X7E2dKb+zem34@lahna> (raw)
In-Reply-To: <Ye5GvQbFKo+CFtRb@lahna>
On Mon, Jan 24, 2022 at 08:27:17AM +0200, Mika Westerberg wrote:
> > > This patch introduces a new "UntrustedDevice" property that can be used
> > > by the firmware to mark any device as untrusted.
>
> I think this new property should be documented somewhere too (also
> explain when to use it instead of ExternalFacingPort). If not in the
> next ACPI spec or some supplemental doc then perhaps in the DT bindings
> under Documentation/devicetree/bindings.
Actually Microsoft has similar already:
https://docs.microsoft.com/en-us/windows-hardware/drivers/pci/dsd-for-pcie-root-ports#identifying-internal-pcie-ports-accessible-to-users-and-requiring-dma-protection
I think we should use that too here.
next prev parent reply other threads:[~2022-01-25 11:01 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-20 0:04 [PATCH] PCI: ACPI: Allow internal devices to be marked as untrusted Rajat Jain
2022-01-20 2:25 ` Dmitry Torokhov
2022-01-20 15:08 ` Rajat Jain
2022-01-27 23:02 ` Rajat Jain
2022-01-21 21:41 ` Bjorn Helgaas
2022-01-22 14:46 ` Greg Kroah-Hartman
2022-01-24 6:27 ` Mika Westerberg
2022-01-25 10:58 ` Mika Westerberg [this message]
2022-01-25 11:15 ` Greg Kroah-Hartman
2022-01-25 12:55 ` Mika Westerberg
2022-01-25 14:45 ` Rafael J. Wysocki
2022-01-27 22:26 ` Rajat Jain
2022-01-28 7:48 ` Mika Westerberg
2022-01-28 21:34 ` Rajat Jain
2022-01-30 14:30 ` Rafael J. Wysocki
2022-01-31 6:41 ` Mika Westerberg
2022-01-31 19:57 ` Rajat Jain
2022-02-02 2:05 ` Rajat Jain
2022-01-28 9:55 ` Jean-Philippe Brucker
2022-01-25 14:40 ` Rafael J. Wysocki
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