Re: How to retrieve HII form's default value

[<methavanitpong.pipat@socionext.com>]

> FCE supports Linux also.

Nice. 

> There is no MACRO to describe VFR default value as PCD value in DSC file.

Too bad :(
For my case, the variable is UINT64, so it's easy to assign in a DSC file. 
FCE looks needed for HII variables not being primitive data types. 

> MdeModulePkg HiiLib has one function HiiSetToDefaults() to retrieve the
> default setting and set it at boot time.

COOL! This one should solve initializing HII variables at runtime. 
Many thanks, Gao!
--
Pipat Methavanitpong
Software Developer, S-Project 3
Socionext Inc.


> -----Original Message-----
> From: Gao, Liming [mailto:liming.gao@intel.com]
> Sent: Monday, May 21, 2018 9:57 AM
> To: Methavanitpong, Pipat/メタワニットポン ピパット
> <methavanitpong.pipat@socionext.com>; edk2-devel@lists.01.org
> Cc: ard.biesheuvel@linaro.org
> Subject: RE: How to retrieve HII form's default value
> 
> FCE supports Linux also.
> 
> There is no MACRO to describe VFR default value as PCD value in DSC file.
> MdeModulePkg HiiLib has one function HiiSetToDefaults() to retrieve the
> default setting and set it at boot time. Its first parameter is
> ConfigRequestHdr that represents one varstore or efi varstore defined in
> VFR. You can see this function usage in
> MdeModulePkg\Universal\DriverSampleDxe\DriverSample.c
> 
> Thanks
> Liming
> > -----Original Message-----
> > From: methavanitpong.pipat@socionext.com
> > [mailto:methavanitpong.pipat@socionext.com]
> > Sent: Monday, May 21, 2018 8:25 AM
> > To: Gao, Liming <liming.gao@intel.com>; edk2-devel@lists.01.org
> > Cc: ard.biesheuvel@linaro.org
> > Subject: RE: How to retrieve HII form's default value
> >
> > > Intel provides FCE tool. It can parse the generated BIOS image and
> > > output the default value for every HII question. You can try it.
> >
> > Thanks Gao. This looks useful :)
> > I have to prepare my Windows environment before trying this out.
> >
> > But, is there a way to do it at build time?
> > Since default values are written in VFR files, it should be able to
> > resolve at both build time and runtime.
> >
> > * Is there any macro to let HII PCDs set to their default values in a
> DSC file?
> > * Is there a function or macro to lookup HII default values in a driver
> file?
> >
> >
> > Thank you,
> > --
> > Pipat Methavanitpong
> > Software Developer, S-Project 3
> > Socionext Inc.
> > > -----Original Message-----
> > > From: Gao, Liming [mailto:liming.gao@intel.com]
> > > Sent: Friday, May 18, 2018 5:50 PM
> > > To: Methavanitpong, Pipat/メタワニットポン ピパット
> > > <methavanitpong.pipat@socionext.com>; edk2-devel@lists.01.org
> > > Cc: ard.biesheuvel@linaro.org
> > > Subject: RE: How to retrieve HII form's default value
> > >
> > > Intel provides FCE tool. It can parse the generated BIOS image and
> > > output the default value for every HII question. You can try it.
> > >
> > > Here is the latest version
> > > https://firmware.intel.com/sites/default/files/2018-WW13-FCE.34-
> > > Release.zip
> > >
> > > >-----Original Message-----
> > > >From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf
> > > >Of methavanitpong.pipat@socionext.com
> > > >Sent: Friday, May 18, 2018 10:09 AM
> > > >To: edk2-devel@lists.01.org
> > > >Cc: ard.biesheuvel@linaro.org
> > > >Subject: [edk2] How to retrieve HII form's default value
> > > >
> > > >Hi,
> > > >
> > > >I'm working on changing SynQuacer/PlatformDxe initial HII
> configuration.
> > > >
> > > >In the current implementation, SynQuacerPlatformSettings HII
> > > >variable doesn't set its initial value from PcdPlatfromSettings.
> > > >
> > > >* PcdPlatformSettings is initially set with value in dsc at build
> > > >time
> > > >
> > > >    * https://github.com/tianocore/edk2-
> > > >platforms/blob/master/Platform/Socionext/DeveloperBox/DeveloperBox.
> > > >dsc
> > > >#L439
> > > >
> > > >* SynQuacerPlatformSettings is initially set to zeros at run time
> > > >
> > > >    * https://github.com/tianocore/edk2-
> > > >platforms/blob/master/Silicon/Socionext/SynQuacer/Drivers/PlatformD
> > > >xe/P
> > > >l
> > > >atformDxe.c#L246
> > > >
> > > >They are unsync, but are both initially assigned to 0 independently.
> > > >
> > > >What I want to do with this issue is
> > > >
> > > >* Set initial SynQuacerPlatformSettings value from its
> > > >  SYNQUACER_PLATFORM_FORMSET_GUID form's default value
> > > >* Set initial PcdPlatformSettings value from its
> > > >  SYNQUACER_PLATFORM_FORMSET_GUID form's default value
> > > >
> > > >Could anyone give me an advice on retrieving default value from a
> > > >HII form and assign in C and DSC files?
> > > >
> > > >
> > > >Thanks,
> > > >--
> > > >Pipat Methavanitpong
> > > >Software Developer, S-Project 3
> > > >Socionext Inc.
> > > >_______________________________________________
> > > >edk2-devel mailing list
> > > >edk2-devel@lists.01.org
> > > >https://lists.01.org/mailman/listinfo/edk2-devel