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Qiu Shumin b62bb8854f ShellPkg : Cache the environment variable into memory to enhance 
the performance.

Currently UEFI Shell reads variable storage to get the environment
variables every time running a new command. And reading(writing)
UEFI variables is a high cost operation on most platforms. In order
to enhance the performance this patch read the variable storage once
and cache the environment variables in memory. Every further 'set'
command will save the variable not only to Shell cache, but also the
flash variable storage.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Qiu Shumin <shumin.qiu@intel.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by:Ruiyu Ni <ruiyu.ni@intel.com>
 		2016-04-15 11:10:30 +08:00
..
Application ShellPkg : Cache the environment variable into memory to enhance 2016-04-15 11:10:30 +08:00
Include ShellPkg: Merge Ping6 and Ifconfig6 tools to Shell command. 2016-03-08 15:01:29 +08:00
Library ShellPkg: Update Guid/Protocol usages in INF files. 2016-04-13 14:52:59 +08:00
Contributions.txt */Contributions.txt: Update example email address 2015-02-03 17:29:14 +00:00
License.txt Update copyright format 2012-04-24 06:49:39 +00:00
Readme.txt ShellPkg: Updated version number. 2011-12-13 18:45:44 +00:00
ShellPkg.dec ShellPkg: Merge Ping6 and Ifconfig6 tools to Shell command. 2016-03-08 15:01:29 +08:00
ShellPkg.dsc ShellPkg: Merge Ping6 and Ifconfig6 tools to Shell command. 2016-03-08 15:01:29 +08:00

Readme.txt

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============================================================================
                                 OVERVIEW
============================================================================
The UEFI 2.0 shell provides a standard pre-boot command line processor.
It is similar to the EDK EFI Shell or a *nix command line parser.

============================================================================
                    HOW TO INCORPORATE THIS SHELL INTO NT32
============================================================================
The instructions below are included as a sample and template on how a 
developer may integrate this code into an existing platform:

1. Add this shell build to the NT32 build:
   Add the shell.inf to the [components] section as it is in the ShellPkg.dsc.

2. Update system PCDs to support this new module
   Update the PCD as follows using the Shell's PCD:
   gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdShellFile|{ 0x83, 0xA5, 0x04, 0x7C, 0x3E, 0x9E, 0x1C, 0x4F, 0xAD, 0x65, 0xE0, 0x52, 0x68, 0xD0, 0xB4, 0xD1 }

3. Remove the old shell from the NT32 Firmware list
   Remove the FILE APPLICATION section for the old shell.

4. Add this shell to the NT32 firmware list
   Add the Shell.INF to the end of the list of DXE modules.

5. Build NT32


============================================================================