Re: [PATCH 0/6] thunderbolt / ACPI: Add support for USB4 _OSC

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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>




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