From 0a34d1e6df4904a42a4b441530b4fd89735245e3 Mon Sep 17 00:00:00 2001 From: Varun Wadekar Date: Mon, 23 Mar 2015 09:26:40 +0530 Subject: [PATCH] TLK-D documentation and add NVIDIA to the Acknowledgements file Include TLK Dispatcher's documentation and add NVIDIA to the Acknowledgements file. TLK is now a supported Trusted OS with the Trusted Firmware. Signed-off-by: Varun Wadekar --- acknowledgements.md | 2 ++ docs/tlk-dispatcher.md | 59 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 61 insertions(+) create mode 100644 docs/tlk-dispatcher.md diff --git a/acknowledgements.md b/acknowledgements.md index a428f2f9..3ffefc71 100644 --- a/acknowledgements.md +++ b/acknowledgements.md @@ -5,5 +5,7 @@ Companies --------- Linaro Limited +NVIDIA Corporation + Individuals ----------- diff --git a/docs/tlk-dispatcher.md b/docs/tlk-dispatcher.md new file mode 100644 index 00000000..a2212b52 --- /dev/null +++ b/docs/tlk-dispatcher.md @@ -0,0 +1,59 @@ +Trusted Little Kernel (TLK) Dispatcher +======================================= +TLK dispatcher adds support for NVIDIA's Trusted Little Kernel (TLK) to work +with the Trusted Firmware. TLK-D can be compiled by including it in the +platform's makefile. TLK is primarily meant to work with Tegra SoCs, so until +Trusted Firmware starts supporting Tegra, the dispatcher code can only be +compiled for other platforms. + +In order to compile TLK-D, we need a BL32 image to be present. Since, TLKD +just needs to compile, any BL32 image would do. To use TLK as the BL32, please +refer to the "Build TLK" section. + +Once a BL32 is ready, TLKD can be compiled using the following command: + +CROSS_COMPILE=/bin/aarch64-none-elf- make NEED_BL1=0 +NEED_BL2=0 BL32= PLAT= all +_ +Trusted Little Kernel (TLK) +=========================== +TLK is a Trusted OS running as Secure EL1. It is a Free Open Source Software +(FOSS) release of the NVIDIA® Trusted Little Kernel (TLK) technology, which +extends technology made available with the development of the Little Kernel (LK). +You can download the LK modular embedded preemptive kernel for use on ARM, +x86, and AVR32 systems from https://github.com/travisg/lk + +NVIDIA implemented its Trusted Little Kernel (TLK) technology, designed as a +free and open-source trusted execution environment (OTE). + +TLK features include: + +• Small, pre-emptive kernel +• Supports multi-threading, IPCs, and thread scheduling +• Added TrustZone features +• Added Secure Storage +• Under MIT/FreeBSD license + +NVIDIA extensions to Little Kernel (LK) include: + +• User mode +• Address-space separation for TAs +• TLK Client Application (CA) library +• TLK TA library +• Crypto library (encrypt/decrypt, key handling) via OpenSSL +• Linux kernel driver +• Cortex A9/A15 support +• Power Management +• TrustZone memory carve-out (reconfigurable) +• Page table management +• Debugging support over UART (USB planned) + +TLK is hosted by NVIDIA on http://nv-tegra.nvidia.com under the +3rdparty/ote_partner/tlk.git repository. Detailed information about +TLK and OTE can be found in the Tegra_BSP_for_Android_TLK_FOSS_Reference.pdf +manual located under the "documentation" directory_. + +Build TLK +========= +To build and execute TLK, follow the instructions from "Building a TLK Device" +section from Tegra_BSP_for_Android_TLK_FOSS_Reference.pdf manual. -- 2.30.2