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Given that the platform TSM owns IDE Stream ID allocation, report the active streams via the TSM class device. Establish a symlink from the class device to the PCI endpoint device consuming the stream, named by the Stream ID. Acked-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Reviewed-by: Alexey Kardashevskiy <aik@amd.com> Link: https://patch.msgid.link/20251031212902.2256310-10-dan.j.williams@intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
20 lines
889 B
Plaintext
20 lines
889 B
Plaintext
What: /sys/class/tsm/tsmN
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Contact: linux-coco@lists.linux.dev
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Description:
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"tsmN" is a device that represents the generic attributes of a
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platform TEE Security Manager. It is typically a child of a
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platform enumerated TSM device. /sys/class/tsm/tsmN/uevent
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signals when the PCI layer is able to support establishment of
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link encryption and other device-security features coordinated
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through a platform tsm.
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What: /sys/class/tsm/tsmN/streamH.R.E
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Contact: linux-pci@vger.kernel.org
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Description:
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(RO) When a host bridge has established a secure connection via
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the platform TSM, symlink appears. The primary function of this
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is have a system global review of TSM resource consumption
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across host bridges. The link points to the endpoint PCI device
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and matches the same link published by the host bridge. See
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Documentation/ABI/testing/sysfs-devices-pci-host-bridge.
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