On Tue, Jan 26, 2021 at 5:57 PM Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> wrote: > > Hi all, > > The just released ACPI 6.4 spec [1] adds a new _OSC method that is used to > negotiate OS support for native USB4 features such as PCIe tunneling. This > patch series adds Linux support for the new _OSC and modifies the > Thunderbolt/USB4 driver accordingly to enable/disable tunneling of > different protocols. > > There is an additional setting in the firmware connection manager that > allows the BIOS to disable PCIe tunneling, so we add support for this and > also make the software connection manager to switch to this "nopcie" > security level when the _OSC does not allow PCIe tunneling. > > This applies on top of thunderbolt.git/next. > > [1] https://uefi.org/sites/default/files/resources/ACPI_Spec_6_4_Jan22.pdf > > Mario Limonciello (2): > thunderbolt: Fix possible NULL pointer dereference in tb_acpi_add_link() > ACPI: Execute platform _OSC also with query bit clear > > Mika Westerberg (4): > thunderbolt: Add support for PCIe tunneling disabled (SL5) > thunderbolt: Allow disabling XDomain protocol > ACPI: Add support for native USB4 control _OSC > thunderbolt: Add support for native USB4 _OSC > For Thunderbolt parts, Acked-by: Yehezkel Bernat <YehezkelShB@xxxxxxxxx>
