| commit | 99b50be9d8ec9ef319cc7d5de07f4d405fac7764 | [log] [tgz] |
|---|---|---|
| author | Rajat Jain <rajatja@google.com> | Tue Jul 07 15:46:03 2020 -0700 |
| committer | Bjorn Helgaas <bhelgaas@google.com> | Fri Jul 10 14:03:13 2020 -0500 |
| tree | be02a9fb43919b4fb5ac42f8b728d48d0dc6988d | |
| parent | 52fbf5bdeeef415b28b8e6cdade1e48927927f60 [diff] |
PCI: Treat "external-facing" devices themselves as internal "External-facing" devices are internal devices that expose PCIe hierarchies such as Thunderbolt outside the platform [1]. Previously these internal devices were marked as "untrusted" the same as devices downstream from them. Use the ACPI or DT information to identify external-facing devices, but only mark the devices *downstream* from them as "untrusted" [2]. The external-facing device itself is no longer marked as untrusted. [1] https://docs.microsoft.com/en-us/windows-hardware/drivers/pci/dsd-for-pcie-root-ports#identifying-externally-exposed-pcie-root-ports [2] https://lore.kernel.org/linux-pci/20200610230906.GA1528594@bjorn-Precision-5520/ Link: https://lore.kernel.org/r/20200707224604.3737893-3-rajatja@google.com Signed-off-by: Rajat Jain <rajatja@google.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>