Eric Lee / smarc-fsl-linux-kernel

04 Jan, 2020

1 commit

  • bade7e1fb   tee: amdtee: check TEE status during driver initialization ... Browse Code »

    The AMD-TEE driver should check if TEE is available before
    registering itself with TEE subsystem. This ensures that
    there is a TEE which the driver can talk to before proceeding
    with tee device node allocation.

    Cc: Ard Biesheuvel
    Cc: Tom Lendacky
    Acked-by: Jens Wiklander
    Co-developed-by: Devaraj Rangasamy
    Signed-off-by: Devaraj Rangasamy
    Signed-off-by: Rijo Thomas
    Reviewed-by: Gary R Hook
    Signed-off-by: Herbert Xu

    Rijo Thomas
     

20 Dec, 2019

1 commit

  • 632b0b530   crypto: ccp - provide in-kernel API to submit TEE commands ... Browse Code »

    Extend the functionality of AMD Secure Processor (SP) driver by
    providing an in-kernel API to submit commands to TEE ring buffer for
    processing by Trusted OS running on AMD Secure Processor.

    Following TEE commands are supported by Trusted OS:

    * TEE_CMD_ID_LOAD_TA : Load Trusted Application (TA) binary into
    TEE environment
    * TEE_CMD_ID_UNLOAD_TA : Unload TA binary from TEE environment
    * TEE_CMD_ID_OPEN_SESSION : Open session with loaded TA
    * TEE_CMD_ID_CLOSE_SESSION : Close session with loaded TA
    * TEE_CMD_ID_INVOKE_CMD : Invoke a command with loaded TA
    * TEE_CMD_ID_MAP_SHARED_MEM : Map shared memory
    * TEE_CMD_ID_UNMAP_SHARED_MEM : Unmap shared memory

    Linux AMD-TEE driver will use this API to submit command buffers
    for processing in Trusted Execution Environment. The AMD-TEE driver
    shall be introduced in a separate patch.

    Cc: Jens Wiklander
    Cc: Tom Lendacky
    Cc: Ard Biesheuvel
    Co-developed-by: Devaraj Rangasamy
    Signed-off-by: Devaraj Rangasamy
    Signed-off-by: Rijo Thomas
    Acked-by: Gary R Hook
    Signed-off-by: Herbert Xu

    Rijo Thomas