Thanks Andrew.  Can a directory be used as a Firmware Volume?

Stephen

Andrew Fish wrote:
> On Jun 19, 2013, at 10:11 AM, Stephen Polkowski <[email protected]> wrote:
> 
>> Hi Thomas,
>>
>> Thank you for your suggestions.  I didn't know about #2.
>>
>> Ideally, I wish that the DXE Dispatcher would just load any needed DXEs
>> from a default location (like \EFI\DXE).  Instead, the shell application
>> has to do the work of finding the DXEs and installing them.
>>
> 
> The dispatcher only dispatches from FVs (Firmware Volumes), as it is the only 
> way to associated the dependency expression with the executable. 
> 
> Your code can register an FV via gDS->ProcessFirmwareVolume ().
> 
> Thanks,
> 
> Andrew Fish
> 
>> Regards,
>>
>> Stephen
>>
>>
>> Thomas Rognon wrote:
>>> I'm not sure I understand your goal 100%. However, here are a few ideas.
>>>
>>> 1) You can have your application load them when it starts using 
>>> LoadImage() and StartImage() on each one.
>>>
>>> 2) You could have the boot manager load them for you when the computer 
>>> starts by putting them in DriverXXXX variables. Chapter 3 of the UEFI 
>>> Spec describes this in detail. If you have a nice boot manager, it might 
>>> even provide a menu for adding driver options (just like boot options).
>>>
>>> 3) If you want to centralize deployment of the drivers, you could put 
>>> them on the network somewhere and write an application that downloads 
>>> them and then use LoadImage() and StartImage() on each one. This is how 
>>> I do some of my stuff.
>>>
>>> Thomas Rognon
>>>
>>>
>>> On Wed, Jun 19, 2013 at 10:39 AM, Stephen Polkowski 
>>> <[email protected] <mailto:[email protected]>> wrote:
>>>
>>>    Hello,
>>>
>>>            The edk2 produces several DXE drivers from the various packages.
>>>    I understand that these drivers can be loaded by using the shell "load"
>>>    command.
>>>
>>>            Are there any other methods to load DXE drivers from a shell
>>>    application?  For example, one could have a DXE directory under \EFI
>>>    filesystem where a shell application could check for the DXE and
>>>    installs it.
>>>    Better yet, it would great if the DXE Dispatcher could automatically
>>>    load drivers from this directory when needed.
>>>
>>>            A second option would be to embedded a DXE driver binary
>>>    into the shell application.  The shell application could extract the
>>>    DXE and
>>>    then install it.
>>>
>>>            A third possibility is to link the DXE code directly into
>>>    the application.
>>>    I haven't seen an example of this in the EDK2, so I assume this isn't
>>>    possible or suggested.
>>>
>>>            The reason I ask is that I am developing some simple shell
>>>    utilities.
>>>    These utilities are usually passed around the company as single
>>>    executables.
>>>    Having to carry around all the necessary DXEs for a shell application
>>>    is cumbersome and error prone.
>>>
>>>            Are there better methods for using DXEs than ones I've
>>>    described?
>>>
>>>    Thanks,
>>>
>>>    Stephen
>>>
>>>
>>>
>>>
>>>    
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>>
>> -- 
>> Stephen Polkowski
>> Centaur Technology
>> Austin, TX
>> (512) 418-5730
>>
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> 


-- 
Stephen Polkowski
Centaur Technology
Austin, TX
(512) 418-5730

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