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RD-V1 Quad-Chip platform software user guide
============================================

.. contents::


Introduction
------------

RD (Reference Design) is a collection of resources to provide a representative
view of typical compute subsystems that can be designed and implemented using
specific generations of Arm IP.

The "RD-V1 Quad-Chip" platform will be referred to as "RD-V1-MC" henceforth in
this document. RD-V1-MC is a quad-chip platform in which four identical chips
are connected through high speed CCIX link. The CCIX link is enabled through
CMN-650 Coherent Multichip Link (CML) feature. RD-V1-MC in particular is based
on the following hardware configuration.

- 128xMP1 Neoverse V1 CPUs
- CMN-650 interconnect
- Multiple AXI expansion ports for I/O Coherent PCIe, Ethernet, offload
- Arm Cortex-M7 for System Control Processor (SCP) and
  Manageability Control Processor (MCP)

The Fixed Virtual Platform of RD-V1-MC supports a reduced configuration of the
above configuration. That is, there are a total of 16xMP1 Neoverse V1 CPUs,
4xMP1 Neoverse CPUs on each chip on RD-V1-MC FVP.

This document is a user guide on how to setup, build and run the RD-V1-MC
software stack on the Fixed Virtual Platform.


Setting up the Host Machine and Syncing the software stack
----------------------------------------------------------

Host Machine requirements and the necessary steps to be followed to sync the
software stack are listed on '`Download sources`_' page.


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Obtaining the RD-V1-MC FVP
--------------------------
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The latest version of the RD-V1-MC fixed virtual platform (FVP) can be
downloaded from the `Arm Ecosystem FVPs`_ page. On this page, navigate to
"Neoverse Infrastructure FVPs" section to download the RD-V1 platform
FVP installer.
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Follow the instructions of the installer and setup the FVP. The installer, by
default, selects the home directory to install the FVP. To opt for different
directory than the one selected by the installer, provide an absolute path to
that directory when prompted for during the FVP installation process.
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Supported Features by RD-V1-MC platform software stack
------------------------------------------------------

RD-V1-MC platform software stack supports the following features.

- `Busybox Boot`_.
- `Linux Distribution Boot`_.
- `UEFI Secure Boot`_.

Follow the links above for detailed information about the build and execute
steps for each of the supported features.


Release Tags
------------

Table below lists the release tags for the RD-V1 platform software stack and
the corresponding RD-V1-MC FVP version that is recommended to be used along
with the listed release tag. The summary of the changes introduced and tests
validated in each release is listed in `change log`_.

+-----------------------+-------------------------+
|     Release Tag       |   RD-V1-MC FVP Version  |
+=======================+=========================+
|  RD-INFRA-2021.02.24  |       11.13.43          |
+-----------------------+-------------------------+


--------------

*Copyright (c) 2020-2021, Arm Limited. All rights reserved.*

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.. _Arm Ecosystem FVPs: https://developer.arm.com/tools-and-software/open-source-software/arm-platforms-software/arm-ecosystem-fvps
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.. _Busybox Boot: docs/infra/common/busybox-boot.rst
.. _Linux Distribution Boot: docs/infra/common/distro-boot.rst
.. _UEFI Secure Boot: docs/infra/common/secure-boot.rst
.. _Download sources: docs/infra/common/download-sources.rst
.. _change log: docs/infra/change-log.rst