[PATCH v3 1/1] MdeModulePkg: Add BootDiscoveryPolicyUiLib.

["Grzegorz Bernacki" <gjb@semihalf.com>]

This library extends Boot Maintenance Menu and allows to select
Boot Discovery Policy. When choice is made BootDiscoveryPolicy
variable is set. Platform code can use this variable to decide
which class of device shall be connected.

Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
---
 MdeModulePkg/MdeModulePkg.dec                                                     |   6 +
 MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLib.inf        |  52 +++++++
 MdeModulePkg/Include/Guid/BootDiscoveryPolicy.h                                   |  22 +++
 MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLib.c          | 160 ++++++++++++++++++++
 MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLib.uni        |  18 +++
 MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLibStrings.uni |  29 ++++
 MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLibVfr.Vfr     |  44 ++++++
 7 files changed, 331 insertions(+)
 create mode 100644 MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLib.inf
 create mode 100644 MdeModulePkg/Include/Guid/BootDiscoveryPolicy.h
 create mode 100644 MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLib.c
 create mode 100644 MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLib.uni
 create mode 100644 MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLibStrings.uni
 create mode 100644 MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLibVfr.Vfr

diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index ad84421cf3..4e1c291768 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -425,6 +425,9 @@
   ## Include/UniversalPayload/SerialPortInfo.h
   gUniversalPayloadSerialPortInfoGuid = { 0xaa7e190d, 0xbe21, 0x4409, { 0x8e, 0x67, 0xa2, 0xcd, 0xf, 0x61, 0xe1, 0x70 } }
 
+  ## GUID used for Boot Discovery Policy FormSet guid and related variables.
+  gBootDiscoveryPolicyMgrFormsetGuid = { 0x5b6f7107, 0xbb3c, 0x4660, { 0x92, 0xcd, 0x54, 0x26, 0x90, 0x28, 0x0b, 0xbd } }
+
 [Ppis]
   ## Include/Ppi/AtaController.h
   gPeiAtaControllerPpiGuid       = { 0xa45e60d1, 0xc719, 0x44aa, { 0xb0, 0x7a, 0xaa, 0x77, 0x7f, 0x85, 0x90, 0x6d }}
@@ -1600,6 +1603,9 @@
   # @Prompt Console Output Row of Text Setup
   gEfiMdeModulePkgTokenSpaceGuid.PcdSetupConOutRow|25|UINT32|0x4000000e
 
+  ## Specify the Boot Discovery Policy settings
+  gEfiMdeModulePkgTokenSpaceGuid.PcdBootDiscoveryPolicy|2|UINT32|0x4000000f
+
 [PcdsFixedAtBuild.AARCH64, PcdsPatchableInModule.AARCH64]
   gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiExposedTableVersions|0x20|UINT32|0x0001004c
 
diff --git a/MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLib.inf b/MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLib.inf
new file mode 100644
index 0000000000..1fb4d43caa
--- /dev/null
+++ b/MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLib.inf
@@ -0,0 +1,52 @@
+## @file
+#  Library for BDS phase to use Boot Discovery Policy
+#
+#  Copyright (c) 2021, ARM Ltd. All rights reserved.<BR>
+#  Copyright (c) 2021, Semihalf All rights reserved.<BR>
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = BootDiscoveryPolicyUiLib
+  MODULE_UNI_FILE                = BootDiscoveryPolicyUiLib.uni
+  FILE_GUID                      = BE73105A-B13D-4B57-A41A-463DBD15FE10
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = NULL|DXE_DRIVER UEFI_APPLICATION
+  CONSTRUCTOR                    = BootDiscoveryPolicyUiLibConstructor
+  DESTRUCTOR                     = BootDiscoveryPolicyUiLibDestructor
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32 X64 AARCH64
+#
+
+[Sources]
+  BootDiscoveryPolicyUiLib.c
+  BootDiscoveryPolicyUiLibStrings.uni
+  BootDiscoveryPolicyUiLibVfr.Vfr
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+  DevicePathLib
+  BaseLib
+  UefiRuntimeServicesTableLib
+  UefiBootServicesTableLib
+  DebugLib
+  HiiLib
+  UefiLib
+  BaseMemoryLib
+
+[Guids]
+  gBootDiscoveryPolicyMgrFormsetGuid
+
+[Pcd]
+  gEfiMdeModulePkgTokenSpaceGuid.PcdBootDiscoveryPolicy  ## PRODUCES
+
+[Depex]
+  gEfiHiiDatabaseProtocolGuid AND gPcdProtocolGuid
diff --git a/MdeModulePkg/Include/Guid/BootDiscoveryPolicy.h b/MdeModulePkg/Include/Guid/BootDiscoveryPolicy.h
new file mode 100644
index 0000000000..8eb0968a16
--- /dev/null
+++ b/MdeModulePkg/Include/Guid/BootDiscoveryPolicy.h
@@ -0,0 +1,22 @@
+/** @file
+  Definition for structure & defines exported by Boot Discovery Policy UI
+
+  Copyright (c) 2021, ARM Ltd. All rights reserved.<BR>
+  Copyright (c) 2021, Semihalf All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _BOOT_DISCOVERY_POLICY_UI_LIB_H_
+#define _BOOT_DISCOVERY_POLICY_UI_LIB_H_
+
+#define BDP_CONNECT_MINIMAL 0  /* Do not connect any additional devices */
+#define BDP_CONNECT_NET     1
+#define BDP_CONNECT_ALL     2
+
+#define BOOT_DISCOVERY_POLICY_MGR_FORMSET_GUID  { 0x5b6f7107, 0xbb3c, 0x4660, { 0x92, 0xcd, 0x54, 0x26, 0x90, 0x28, 0x0b, 0xbd } }
+
+#define BOOT_DISCOVERY_POLICY_VAR L"BootDiscoveryPolicy"
+
+#endif
diff --git a/MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLib.c b/MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLib.c
new file mode 100644
index 0000000000..6814d0bb8f
--- /dev/null
+++ b/MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLib.c
@@ -0,0 +1,160 @@
+/** @file
+  Boot Discovery Policy UI for Boot Maintenance menu.
+
+  Copyright (c) 2021, ARM Ltd. All rights reserved.<BR>
+  Copyright (c) 2021, Semihalf All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Guid/BootDiscoveryPolicy.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <Library/BaseLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/DebugLib.h>
+#include <Library/HiiLib.h>
+#include <Library/UefiLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Include/Library/PcdLib.h>
+
+///
+/// HII specific Vendor Device Path definition.
+///
+typedef struct {
+  VENDOR_DEVICE_PATH             VendorDevicePath;
+  EFI_DEVICE_PATH_PROTOCOL       End;
+} HII_VENDOR_DEVICE_PATH;
+
+extern unsigned char BootDiscoveryPolicyUiLibVfrBin[];
+
+EFI_HII_HANDLE  mBPHiiHandle = NULL;
+EFI_HANDLE      mBPDriverHandle = NULL;
+
+STATIC HII_VENDOR_DEVICE_PATH mVendorDevicePath = {
+  {
+    {
+      HARDWARE_DEVICE_PATH,
+      HW_VENDOR_DP,
+      {
+        (UINT8)(sizeof (VENDOR_DEVICE_PATH)),
+        (UINT8)((sizeof (VENDOR_DEVICE_PATH)) >> 8)
+      }
+    },
+    BOOT_DISCOVERY_POLICY_MGR_FORMSET_GUID
+  },
+  {
+    END_DEVICE_PATH_TYPE,
+    END_ENTIRE_DEVICE_PATH_SUBTYPE,
+    {
+      (UINT8)(END_DEVICE_PATH_LENGTH),
+      (UINT8)((END_DEVICE_PATH_LENGTH) >> 8)
+    }
+  }
+};
+
+/**
+
+  Initialize Boot Maintenance Menu library.
+
+  @param ImageHandle     The image handle.
+  @param SystemTable     The system table.
+
+  @retval  EFI_SUCCESS  Install Boot manager menu success.
+  @retval  Other        Return error status.gBPDisplayLibGuid
+
+**/
+EFI_STATUS
+EFIAPI
+BootDiscoveryPolicyUiLibConstructor (
+  IN EFI_HANDLE                            ImageHandle,
+  IN EFI_SYSTEM_TABLE                      *SystemTable
+  )
+{
+  EFI_STATUS                Status;
+  UINTN                     Size;
+  UINT32                    BootDiscoveryPolicy;
+
+  Size = sizeof (UINT32);
+  Status = gRT->GetVariable (
+                  BOOT_DISCOVERY_POLICY_VAR,
+                  &gBootDiscoveryPolicyMgrFormsetGuid,
+                  NULL,
+                  &Size,
+                  &BootDiscoveryPolicy
+                  );
+  if (EFI_ERROR (Status)) {
+    Status = PcdSet32S (PcdBootDiscoveryPolicy, PcdGet32 (PcdBootDiscoveryPolicy));
+    ASSERT_EFI_ERROR (Status);
+  }
+
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                  &mBPDriverHandle,
+                  &gEfiDevicePathProtocolGuid,
+                  &mVendorDevicePath,
+                  NULL
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Publish our HII data
+  //
+  mBPHiiHandle = HiiAddPackages (
+                   &gBootDiscoveryPolicyMgrFormsetGuid,
+                   mBPDriverHandle,
+                   BootDiscoveryPolicyUiLibVfrBin,
+                   BootDiscoveryPolicyUiLibStrings,
+                   NULL
+                   );
+  if (mBPHiiHandle == NULL) {
+    gBS->UninstallMultipleProtocolInterfaces (
+           mBPDriverHandle,
+           &gEfiDevicePathProtocolGuid,
+           &mVendorDevicePath,
+           NULL
+           );
+
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Destructor of Boot Maintenance menu library.
+
+  @param  ImageHandle   The firmware allocated handle for the EFI image.
+  @param  SystemTable   A pointer to the EFI System Table.
+
+  @retval EFI_SUCCESS   The destructor completed successfully.
+  @retval Other value   The destructor did not complete successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+BootDiscoveryPolicyUiLibDestructor (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+
+  if (mBPDriverHandle != NULL) {
+    gBS->UninstallProtocolInterface (
+           mBPDriverHandle,
+           &gEfiDevicePathProtocolGuid,
+           &mVendorDevicePath
+           );
+    mBPDriverHandle = NULL;
+  }
+
+  if (mBPHiiHandle != NULL) {
+    HiiRemovePackages (mBPHiiHandle);
+    mBPHiiHandle = NULL;
+  }
+
+  return EFI_SUCCESS;
+}
diff --git a/MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLib.uni b/MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLib.uni
new file mode 100644
index 0000000000..eea3ca6c8d
--- /dev/null
+++ b/MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLib.uni
@@ -0,0 +1,18 @@
+// /** @file
+// Boot Discovery Policy UI module.
+//
+// Copyright (c) 2021, ARM Ltd. All rights reserved.<BR>
+// Copyright (c) 2021, Semihalf All rights reserved.<BR>
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+// **/
+
+
+#string STR_MODULE_ABSTRACT
+#language en-US "Boot Discovery Policy UI module."
+
+#string STR_MODULE_DESCRIPTION
+#language en-US "Boot Discovery Policy UI module."
+
+
diff --git a/MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLibStrings.uni b/MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLibStrings.uni
new file mode 100644
index 0000000000..736011c9bb
--- /dev/null
+++ b/MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLibStrings.uni
@@ -0,0 +1,29 @@
+// *++
+//
+//  Copyright (c) 2021, ARM Ltd. All rights reserved.<BR>
+//  Copyright (c) 2021, Semihalf All rights reserved.<BR>
+//  SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+//  Module Name:
+//
+//   BootDiscoveryPolicyUiLibStrings.uni
+//
+//  Abstract:
+//
+//    String definitions for Boot Discovery Policy UI.
+//
+// --*/
+
+/=#
+
+
+#langdef en-US "English"
+
+#string STR_FORM_BDP_MAIN_TITLE        #language en-US  "Boot Discovery Policy"
+
+#string STR_FORM_BDP_CONN_MIN          #language en-US  "Minimal"
+
+#string STR_FORM_BDP_CONN_NET          #language en-US  "Connect Network Devices"
+
+#string STR_FORM_BDP_CONN_ALL          #language en-US  "Connect All Devices"
+
diff --git a/MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLibVfr.Vfr b/MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLibVfr.Vfr
new file mode 100644
index 0000000000..0de87ec34f
--- /dev/null
+++ b/MdeModulePkg/Library/BootDiscoveryPolicyUiLib/BootDiscoveryPolicyUiLibVfr.Vfr
@@ -0,0 +1,44 @@
+///** @file
+//
+//  Formset for Boot Discovery Policy UI
+//
+//  Copyright (c) 2021, ARM Ltd. All rights reserved.<BR>
+//  Copyright (c) 2021, Semihalf All rights reserved.<BR>
+//
+//  SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+//**/
+
+#include <Uefi/UefiMultiPhase.h>
+#include "Guid/BootDiscoveryPolicy.h"
+#include <Guid/HiiBootMaintenanceFormset.h>
+
+typedef struct {
+  UINT32 BootDiscoveryPolicy;
+} BOOT_DISCOVERY_POLICY_VARSTORE_DATA;
+
+formset
+  guid      = BOOT_DISCOVERY_POLICY_MGR_FORMSET_GUID,
+  title     = STRING_TOKEN(STR_FORM_BDP_MAIN_TITLE),
+  help      = STRING_TOKEN(STR_FORM_BDP_MAIN_TITLE),
+  classguid = EFI_IFR_BOOT_MAINTENANCE_GUID,
+
+  efivarstore BOOT_DISCOVERY_POLICY_VARSTORE_DATA,
+    attribute = EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
+    name  = BootDiscoveryPolicy,
+    guid  = BOOT_DISCOVERY_POLICY_MGR_FORMSET_GUID;
+
+  form formid = 0x0001,
+    title  = STRING_TOKEN(STR_FORM_BDP_MAIN_TITLE);
+
+  oneof varid = BootDiscoveryPolicy.BootDiscoveryPolicy,
+    prompt      = STRING_TOKEN(STR_FORM_BDP_MAIN_TITLE),
+    help        = STRING_TOKEN(STR_FORM_BDP_MAIN_TITLE),
+    flags       = NUMERIC_SIZE_4 | INTERACTIVE | RESET_REQUIRED,
+    option text = STRING_TOKEN(STR_FORM_BDP_CONN_MIN), value = BDP_CONNECT_MINIMAL, flags = DEFAULT;
+    option text = STRING_TOKEN(STR_FORM_BDP_CONN_NET), value = BDP_CONNECT_NET, flags = 0;
+    option text = STRING_TOKEN(STR_FORM_BDP_CONN_ALL), value = BDP_CONNECT_ALL, flags = 0;
+  endoneof;
+
+  endform;
+endformset;
-- 
2.25.1