Re: [PATCH v2 0/5] thunderbolt / ACPI: Add support for USB4 _OSC

[Mika Westerberg <mika.westerberg@linux.intel.com>]

On Fri, Jan 29, 2021 at 11:32:36AM +0300, Mika Westerberg 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
> 
> The previous version of the patch series can be found here:
> 
>   https://lore.kernel.org/linux-usb/20210126155723.9388-1-mika.westerberg@linux.intel.com/
> 
> Changes from v1:
> 
>   * Dropped patch 1/6. I already applied it to thunderbolt.git/fixes
>   * Added ACK from Yehezkel to TBT patches
>   * Updated changelog of patch 1/5 and fixed typos too
>   * Added Rafael's tag to patch 4/5.
> 
> Mario Limonciello (1):
>   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

All applied to thunderbolt.git/next.