These are necessary patches to Support LinuxBoot in UefiPayload.
With these paches, we can boot to ESXi and Windows from a linux in QEMU.

This is second parse. In addition to fixing reviwer's suggestions,
I removed the following CLs.
* Add DISABLE_MMX_SSE to avoid generating floating points operation
-> will send a seperate patch to add these flags to BaseTools

* LinuxBoot: use a text format for the configuration block.
-> will work with Trammell Hudson to cover this patch to EDK2 style.

LinuxBoot README:
https://github.com/linuxboot/edk2/blob/uefipayload/UefiPayloadPkg/README.md

v2 PR to tianocore:
https://github.com/tianocore/edk2/pull/1873

Cheng-Chieh Huang (4):
  UefiPayloadPkg: Add LINUXBOOT payload target
  UefiPayloadPkg: Use legacy timer in Linuxboot payload
  UefiPayloadPkg: Update maximum logic processor to 256
  UefiPayloadPkg: Reserve Payload config in runtime services data

 UefiPayloadPkg/UefiPayloadPkg.dsc                              |  24 ++-
 UefiPayloadPkg/UefiPayloadPkg.fdf                              |   5 +
 UefiPayloadPkg/Library/LbParseLib/LbParseLib.inf               |  39 +++++
 UefiPayloadPkg/Library/LbParseLib/Linuxboot.h                  |  47 +++++
 UefiPayloadPkg/Library/LbParseLib/LbParseLib.c                 | 182 ++++++++++++++++++++
 UefiPayloadPkg/Library/PciHostBridgeLib/PciHostBridgeSupport.c |   6 +-
 UefiPayloadPkg/UefiPayloadEntry/UefiPayloadEntry.c             |   4 +
 7 files changed, 299 insertions(+), 8 deletions(-)
 create mode 100644 UefiPayloadPkg/Library/LbParseLib/LbParseLib.inf
 create mode 100644 UefiPayloadPkg/Library/LbParseLib/Linuxboot.h
 create mode 100644 UefiPayloadPkg/Library/LbParseLib/LbParseLib.c

Cc: Cheng-Chieh Huang <chengchieh@google.com>
Cc: Daniel Schaefer <daniel.schaefer@hpe.com>
Cc: Trammell Hudson <hudson@trmm.net>
Cc: Maurice Ma <maurice.ma@intel.com>
Cc: Guo Dong <guo.dong@intel.com>
Cc: Benjamin You <benjamin.you@intel.com>


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