audk/UefiCpuPkg/ResetVector/Vtf0
Michael D Kinney 0acd869796 UefiCpuPkg: Replace BSD License with BSD+Patent License
https://bugzilla.tianocore.org/show_bug.cgi?id=1373

Replace BSD 2-Clause License with BSD+Patent License.  This change is
based on the following emails:

  https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html
  https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html

RFCs with detailed process for the license change:

  V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html
  V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html
  V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
2019-04-09 10:58:28 -07:00
..
Bin UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
Ia16 UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
Ia32 UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
Tools UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
X64 UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
Build.py UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
CommonMacros.inc UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
DebugDisabled.asm UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
Main.asm UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
Port80Debug.asm UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
PostCodes.inc UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
ReadMe.txt
ResetVector.uni UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
ResetVectorExtra.uni UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
SerialDebug.asm UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
Vtf0.inf UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
Vtf0.nasmb UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00

ReadMe.txt

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=== HOW TO USE VTF0 ===

Add this line to your FDF FV section:
INF  RuleOverride=RESET_VECTOR USE = IA32 UefiCpuPkg/ResetVector/Vtf0/Bin/ResetVector.inf
(For X64 SEC/PEI change IA32 to X64 => 'USE = X64')

In your FDF FFS file rules sections add:
[Rule.Common.SEC.RESET_VECTOR]
  FILE RAW = $(NAMED_GUID) {
    RAW RAW                |.raw
  }

=== VTF0 Boot Flow ===

1. Transition to IA32 flat mode
2. Locate BFV (Boot Firmware Volume) by checking every 4kb boundary
3. Locate SEC image
4. X64 VTF0 transitions to X64 mode
5. Call SEC image entry point

== VTF0 SEC input parameters ==

All inputs to SEC image are register based:
EAX/RAX - Initial value of the EAX register (BIST: Built-in Self Test)
DI      - 'BP': boot-strap processor, or 'AP': application processor
EBP/RBP - Pointer to the start of the Boot Firmware Volume

=== HOW TO BUILD VTF0 ===

Dependencies:
* Python 2.5~2.7
* Nasm 2.03 or newer

To rebuild the VTF0 binaries:
1. Change to VTF0 source dir: UefiCpuPkg/ResetVector/Vtf0
2. nasm and python should be in executable path
3. Run this command:
   python Build.py
4. Binaries output will be in UefiCpuPkg/ResetVector/Vtf0/Bin