Re: Headless devices - BDS to use?

[Laszlo Ersek <lersek@redhat.com>]

On 11/14/16 18:21, Kurt Kennett wrote:
> Okay, but there is no reference or example for such, correct?

Sorry, I was too terse. Yes, there are at least two examples. Please see OvmfPkg/OvmfPkgX64.dsc or ArmVirtPkg/ArmVirtQemu.dsc.

It seems (from a build report) that BdsDxe inherits a depex of

  gEfiHiiStringProtocolGuid AND
  gEfiHiiDatabaseProtocolGuid AND
  gEfiHiiConfigRoutingProtocolGuid

from the "MdeModulePkg/Library/UefiHiiServicesLib/UefiHiiServicesLib.inf" library instance.

These protocols are provided if you include "MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabaseDxe.inf" in your platform DSC.

> Right now people who don't have a display must fumble about trying to get Hii resources they don't need, understand, or use to get it to work?

I think the following section from ArmVirtQemu.dsc can be used well enough as an example:

  #
  # Bds
  #
  [...]
  MdeModulePkg/Universal/DisplayEngineDxe/DisplayEngineDxe.inf
  MdeModulePkg/Universal/SetupBrowserDxe/SetupBrowserDxe.inf
  MdeModulePkg/Universal/DriverHealthManagerDxe/DriverHealthManagerDxe.inf
  MdeModulePkg/Universal/BdsDxe/BdsDxe.inf
  MdeModulePkg/Logo/LogoDxe.inf
  MdeModulePkg/Application/UiApp/UiApp.inf {
    <LibraryClasses>
      NULL|MdeModulePkg/Library/DeviceManagerUiLib/DeviceManagerUiLib.inf
      NULL|MdeModulePkg/Library/BootManagerUiLib/BootManagerUiLib.inf
      NULL|MdeModulePkg/Library/BootMaintenanceManagerUiLib/BootMaintenanceManagerUiLib.inf
  }

I'm sure Ray (CC'd) will be able to advise you better.

I assume Nt32Pkg and EmulatorPkg should be possible examples too.

> And there is no boot manager menu that is not graphics based?

The above set of drivers provides a dialog / form based setup utility (incl. boot manager) that works well on serial. Also, IIRC the BCFG command can be used from the UEFI shell.

Thanks
Laszlo

> 
> K2
> 
> -----Original Message-----
> From: Laszlo Ersek [mailto:lersek@redhat.com] 
> Sent: Monday, November 14, 2016 9:19 AM
> To: Kurt Kennett <Kurt.Kennett@microsoft.com>
> Cc: edk2-devel@lists.01.org <edk2-devel@ml01.01.org>
> Subject: Re: [edk2] Headless devices - BDS to use?
> 
> On 11/14/16 17:51, Kurt Kennett wrote:
>> What BDS are headless devices (no display, serial port only) supposed to use?
>>
>> The MdeModulePkg one seems to require Hii resources in order to work at all.
> 
> It may require HII resources, but it works fine with just a serial port.
> 
> Thanks
> Laszlo
> 
>> The ArmPlatformPkg BDS (that supported headless devices just fine) seems to be gone now.
>>
>> K2
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>