Re: [edk2-platforms PATCH v5 1/2] Platform/RaspberryPi: Enable Boot Discovery Policy.

["Ard Biesheuvel" <ardb@kernel.org>]

On Tue, 3 Aug 2021 at 15:00, Samer El-Haj-Mahmoud
<Samer.El-Haj-Mahmoud@arm.com> wrote:
>
> Ard,
>
> Now that the EDK2 changes are merged (aaecef38b9440a65809cbdaf9d97029f4eeb), I think these RPi specific changes are ready to be merged as well.
>

I only see acks from Sunny though. This is why I asked Pete and Andrei
to chime in as well.

> > -----Original Message-----
> > From: Grzegorz Bernacki <gjb@semihalf.com>
> > Sent: Monday, August 2, 2021 8:19 AM
> > To: devel@edk2.groups.io
> > Cc: leif@nuviainc.com; ardb+tianocore@kernel.org; Samer El-Haj-Mahmoud
> > <Samer.El-Haj-Mahmoud@arm.com>; Sunny Wang
> > <Sunny.Wang@arm.com>; mw@semihalf.com; upstream@semihalf.com;
> > pete@akeo.ie; jian.j.wang@intel.com; hao.a.wu@intel.com;
> > dandan.bi@intel.com; eric.dong@intel.com; Grzegorz Bernacki
> > <gjb@semihalf.com>; Sunny Wang <Sunny.Wang@arm.com>
> > Subject: [edk2-platforms PATCH v5 1/2] Platform/RaspberryPi: Enable Boot
> > Discovery Policy.
> >
> > This commit modify platform boot to check the value of
> > BootDiscoveryPolicy variable and use BootPolicyManager
> > Protocol to connect devices specified by the variable.
> >
> > Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
> > Reviewed-by: Sunny Wang <sunny.wang@arm.com>
> > ---
> >  Platform/RaspberryPi/RPi4/RPi4.dsc                                             |  3 +
> >  Platform/RaspberryPi/RPi4/RPi4.fdf                                             |  1 +
> >
> > Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBootManag
> > erLib.inf |  5 ++
> >  Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBm.c
> > | 91 ++++++++++++++++++++
> >  4 files changed, 100 insertions(+)
> >
> > diff --git a/Platform/RaspberryPi/RPi4/RPi4.dsc
> > b/Platform/RaspberryPi/RPi4/RPi4.dsc
> > index fd73c4d14b..8b9beac64a 100644
> > --- a/Platform/RaspberryPi/RPi4/RPi4.dsc
> > +++ b/Platform/RaspberryPi/RPi4/RPi4.dsc
> > @@ -555,6 +555,7 @@
> >
> > gEfiMdeModulePkgTokenSpaceGuid.PcdConOutColumn|L"Columns"|gRasp
> > berryPiTokenSpaceGuid|0x0|80
> >
> > gEfiMdeModulePkgTokenSpaceGuid.PcdSetupConOutRow|L"Rows"|gRaspb
> > erryPiTokenSpaceGuid|0x0|25
> >
> > gEfiMdeModulePkgTokenSpaceGuid.PcdConOutRow|L"Rows"|gRaspberryPi
> > TokenSpaceGuid|0x0|25
> > +
> > gEfiMdeModulePkgTokenSpaceGuid.PcdBootDiscoveryPolicy|L"BootDiscove
> > ryPolicy"|gBootDiscoveryPolicyMgrFormsetGuid|0
> >
> >  [PcdsDynamicDefault.common]
> >    #
> > @@ -682,6 +683,7 @@
> >    #
> >    # Bds
> >    #
> > +
> > MdeModulePkg/Universal/BootManagerPolicyDxe/BootManagerPolicyDxe.i
> > nf
> >    MdeModulePkg/Universal/DevicePathDxe/DevicePathDxe.inf
> >    MdeModulePkg/Universal/DisplayEngineDxe/DisplayEngineDxe.inf
> >    MdeModulePkg/Universal/SetupBrowserDxe/SetupBrowserDxe.inf
> > @@ -690,6 +692,7 @@
> >    Platform/RaspberryPi/Drivers/LogoDxe/LogoDxe.inf
> >    MdeModulePkg/Application/UiApp/UiApp.inf {
> >      <LibraryClasses>
> > +
> > NULL|MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolic
> > yUiLib.inf
> >
> > NULL|MdeModulePkg/Library/DeviceManagerUiLib/DeviceManagerUiLib.inf
> >        NULL|MdeModulePkg/Library/BootManagerUiLib/BootManagerUiLib.inf
> >
> > NULL|Platform/RaspberryPi/Library/PlatformUiAppLib/PlatformUiAppLib.inf
> > diff --git a/Platform/RaspberryPi/RPi4/RPi4.fdf
> > b/Platform/RaspberryPi/RPi4/RPi4.fdf
> > index 1e13909a57..371197a93e 100644
> > --- a/Platform/RaspberryPi/RPi4/RPi4.fdf
> > +++ b/Platform/RaspberryPi/RPi4/RPi4.fdf
> > @@ -253,6 +253,7 @@ READ_LOCK_STATUS   = TRUE
> >    #
> >    # Bds
> >    #
> > +  INF
> > MdeModulePkg/Universal/BootManagerPolicyDxe/BootManagerPolicyDxe.i
> > nf
> >    INF MdeModulePkg/Universal/DevicePathDxe/DevicePathDxe.inf
> >    INF MdeModulePkg/Universal/DisplayEngineDxe/DisplayEngineDxe.inf
> >    INF MdeModulePkg/Universal/SetupBrowserDxe/SetupBrowserDxe.inf
> > diff --git
> > a/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBootMan
> > agerLib.inf
> > b/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBootMan
> > agerLib.inf
> > index fbf510ab96..4ef2f791ae 100644
> > ---
> > a/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBootMan
> > agerLib.inf
> > +++
> > b/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBootMan
> > agerLib.inf
> > @@ -61,11 +61,13 @@
> >    gEfiMdePkgTokenSpaceGuid.PcdDefaultTerminalType
> >
> >  [Pcd]
> > +  gEfiMdeModulePkgTokenSpaceGuid.PcdBootDiscoveryPolicy
> >    gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut
> >    gRaspberryPiTokenSpaceGuid.PcdSdIsArasan
> >    gRaspberryPiTokenSpaceGuid.PcdBootPolicy
> >
> >  [Guids]
> > +  gBootDiscoveryPolicyMgrFormsetGuid
> >    gEfiFileInfoGuid
> >    gEfiFileSystemInfoGuid
> >    gEfiFileSystemVolumeLabelInfoIdGuid
> > @@ -73,8 +75,11 @@
> >    gEfiTtyTermGuid
> >    gUefiShellFileGuid
> >    gEfiEventExitBootServicesGuid
> > +  gEfiBootManagerPolicyNetworkGuid
> > +  gEfiBootManagerPolicyConnectAllGuid
> >
> >  [Protocols]
> > +  gEfiBootManagerPolicyProtocolGuid
> >    gEfiDevicePathProtocolGuid
> >    gEfiGraphicsOutputProtocolGuid
> >    gEfiLoadedImageProtocolGuid
> > diff --git
> > a/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBm.c
> > b/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBm.c
> > index d081fdae63..d944d1a38d 100644
> > --- a/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBm.c
> > +++ b/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBm.c
> > @@ -6,6 +6,7 @@
> >   *  Copyright (c) 2015-2016, Red Hat, Inc.
> >   *  Copyright (c) 2014-2021, ARM Ltd. All rights reserved.
> >   *  Copyright (c) 2004-2016, Intel Corporation. All rights reserved.
> > + *  Copyright (c) 2021, Semihalf All rights reserved.
> >   *
> >   *  SPDX-License-Identifier: BSD-2-Clause-Patent
> >   *
> > @@ -19,10 +20,12 @@
> >  #include <Library/UefiBootManagerLib.h>
> >  #include <Library/UefiLib.h>
> >  #include <Library/PrintLib.h>
> > +#include <Protocol/BootManagerPolicy.h>
> >  #include <Protocol/DevicePath.h>
> >  #include <Protocol/EsrtManagement.h>
> >  #include <Protocol/GraphicsOutput.h>
> >  #include <Protocol/LoadedImage.h>
> > +#include <Guid/BootDiscoveryPolicy.h>
> >  #include <Guid/EventGroup.h>
> >  #include <Guid/TtyTerm.h>
> >  #include <ConfigVars.h>
> > @@ -598,6 +601,89 @@ PlatformBootManagerBeforeConsole (
> >    FilterAndProcess (&gEfiUsb2HcProtocolGuid, NULL, Connect);
> >  }
> >
> > +/**
> > +  Connect device specified by BootDiscoverPolicy variable and refresh
> > +  Boot order for newly discovered boot device.
> > +
> > +  @retval  EFI_SUCCESS  Devices connected succesfully or connection
> > +                        not required.
> > +  @retval  others       Return values from GetVariable(), LocateProtocol()
> > +                        and ConnectDeviceClass().
> > +--*/
> > +STATIC
> > +EFI_STATUS
> > +BootDiscoveryPolicyHandler (
> > +  VOID
> > +  )
> > +{
> > +  EFI_STATUS                       Status;
> > +  UINT32                           DiscoveryPolicy;
> > +  UINTN                            Size;
> > +  EFI_BOOT_MANAGER_POLICY_PROTOCOL *BMPolicy;
> > +  EFI_GUID                         *Class;
> > +
> > +  Size = sizeof (DiscoveryPolicy);
> > +  Status = gRT->GetVariable (
> > +                  BOOT_DISCOVERY_POLICY_VAR,
> > +                  &gBootDiscoveryPolicyMgrFormsetGuid,
> > +                  NULL,
> > +                  &Size,
> > +                  &DiscoveryPolicy
> > +                  );
> > +  if (Status == EFI_NOT_FOUND) {
> > +    Status = PcdSet32S (PcdBootDiscoveryPolicy, PcdGet32
> > (PcdBootDiscoveryPolicy));
> > +    DiscoveryPolicy = PcdGet32 (PcdBootDiscoveryPolicy);
> > +    if (Status == EFI_NOT_FOUND) {
> > +      return EFI_SUCCESS;
> > +    } else if (EFI_ERROR (Status)) {
> > +      return Status;
> > +    }
> > +  } else if (EFI_ERROR (Status)) {
> > +    return Status;
> > +  }
> > +
> > +  if (DiscoveryPolicy == BDP_CONNECT_MINIMAL) {
> > +    return EFI_SUCCESS;
> > +  }
> > +
> > +  switch (DiscoveryPolicy) {
> > +    case BDP_CONNECT_NET:
> > +      Class = &gEfiBootManagerPolicyNetworkGuid;
> > +      break;
> > +    case BDP_CONNECT_ALL:
> > +      Class = &gEfiBootManagerPolicyConnectAllGuid;
> > +      break;
> > +    default:
> > +      DEBUG ((
> > +        DEBUG_INFO,
> > +        "%a - Unexpected DiscoveryPolicy (0x%x). Run Minimal Discovery
> > Policy\n",
> > +        __FUNCTION__,
> > +        DiscoveryPolicy
> > +        ));
> > +      return EFI_SUCCESS;
> > +  }
> > +
> > +  Status = gBS->LocateProtocol (
> > +                  &gEfiBootManagerPolicyProtocolGuid,
> > +                  NULL,
> > +                  (VOID **)&BMPolicy
> > +                  );
> > +  if (EFI_ERROR (Status)) {
> > +    DEBUG ((DEBUG_ERROR, "%a - Failed to locate
> > gEfiBootManagerPolicyProtocolGuid - %r\n", __FUNCTION__, Status));
> > +    return Status;
> > +  }
> > +
> > +  Status = BMPolicy->ConnectDeviceClass (BMPolicy, Class);
> > +  if (EFI_ERROR (Status)){
> > +    DEBUG ((DEBUG_ERROR, "%a - ConnectDeviceClass returns - %r\n",
> > __FUNCTION__, Status));
> > +    return Status;
> > +  }
> > +
> > +  EfiBootManagerRefreshAllBootOption();
> > +
> > +  return EFI_SUCCESS;
> > +}
> > +
> >  /**
> >    Do the platform specific action after the console is ready
> >    Possible things that can be done in PlatformBootManagerAfterConsole:
> > @@ -644,6 +730,11 @@ PlatformBootManagerAfterConsole (
> >      DEBUG ((DEBUG_INFO, "Boot Policy is Fast Boot. Skip connecting all
> > devices\n"));
> >    }
> >
> > +  Status = BootDiscoveryPolicyHandler ();
> > +  if (EFI_ERROR(Status)) {
> > +    DEBUG ((DEBUG_INFO, "Error applying Boot Discovery Policy:%r\n",
> > Status));
> > +  }
> > +
> >    Status = gBS->LocateProtocol (&gEsrtManagementProtocolGuid, NULL,
> > (VOID**)&EsrtManagement);
> >    if (!EFI_ERROR (Status)) {
> >      EsrtManagement->SyncEsrtFmp ();
> > --
> > 2.25.1
>
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