SBBR has been superseded by Arm BBR. Update the about section to reference BBR instead. However, none of the specification language changes because EBBR has a relaxed set of UEFI requirements compared to BBR.

Fixes: #62

Signed-off-by: Grant Likely grant.likely@secretlab.ca --- source/chapter1-about.rst | 19 ++++++++----------- source/references.rst | 6 +++--- 2 files changed, 11 insertions(+), 14 deletions(-)

diff --git a/source/chapter1-about.rst b/source/chapter1-about.rst index 68a1abc..6f69f53 100644 --- a/source/chapter1-about.rst +++ b/source/chapter1-about.rst @@ -146,17 +146,14 @@ including services that are required for virtualization. It does not define a standardized abstract virtual machine view for a Guest Operating System.

-This specification is similar to the Arm Server Base Boot Requirements -specification [SBBR]_ in that it defines the firmware interface presented to an -operating system. -SBBR is targeted at the server ecosystem and places strict requirements on the -platform to ensure cross vendor interoperability. -EBBR on the other hand allows more flexibility to support embedded designs -which do not fit within the SBBR model. -For example, a platform that isn't SBBR compliant because the SoC is only -supported using Devicetree could be EBBR compliant, but not SBBR compliant. - -By definition, all SBBR compliant systems are also EBBR compliant, but the +This specification is referenced by the Arm Base Boot Requirements +Specification [ArmBBR]_ § 4.3. +The UEFI requirements found in this document are similar but not identical to +the requirements found in BBR. +EBBR provides greater flexibility for support embedded designs which cannot +easily meet the stricter BBR requirements. + +By definition, all BBR compliant systems are also EBBR compliant, but the converse is not true.

Conventions Used in this Document diff --git a/source/references.rst b/source/references.rst index d91dc08..fb7dc81 100644 --- a/source/references.rst +++ b/source/references.rst @@ -22,9 +22,9 @@ https://static.docs.arm.com/den0022/c/DEN0022C_Power_State_Coordination_Interface.pdf`_ 30 January 2015, `Arm Limited http://arm.com`_

-.. [SBBR] `Arm Server Base Boot Requirements specification Issue B (v1.0) - https://static.docs.arm.com/den0044/b/DEN0044B_Server_Base_Boot_Requirements.pdf`_ - 8 March 2016, `Arm Limited http://arm.com`_ +.. [ArmBBR] `Arm Base Boot Requirements specification Issue F (v1.0) + https://developer.arm.com/documentation/den0044/f`_ + 6 Oct 2020, `Arm Limited http://arm.com`_

.. [UEFI] `Unified Extensable Firmware Interface Specification v2.8 Errata A https://uefi.org/sites/default/files/resources/UEFI_Spec_2_8_A_Feb14.pdf`_,