[PATCH 17/18] BmBoot: prioritize internal boot devices over external

["Sean Rhodes" <sean@starlabs.systems>]

From: Matt DeVillier <matt.devillier@gmail.com>

This prevents some internally-attached USB devices
(card readers, etc) from defaulting ahead of SATA/NVMe/eMMC drives.

Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
---
 MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c       | 10 ++++++++--
 .../Library/UefiBootManagerLib/UefiBootManagerLib.inf  |  1 +
 MdeModulePkg/MdeModulePkg.dec                          |  3 +++
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c b/MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c
index 2da6d2381e..a41a69afd2 100644
--- a/MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c
+++ b/MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c
@@ -2216,8 +2216,14 @@ BmEnumerateBootOptions (
       //
       // Skip the fixed block io then the removable block io
       //
-      if (BlkIo->Media->RemovableMedia == ((Removable == 0) ? FALSE : TRUE)) {
-        continue;
+      if (FixedPcdGetBool (PcdPrioritizeInternal)) {
+        if (BlkIo->Media->RemovableMedia == (Removable == 0)) {
+          continue;
+        }
+      } else {
+        if (BlkIo->Media->RemovableMedia == ((Removable == 0) ? FALSE : TRUE)) {
+          continue;
+        }
       }
 
       Description = BmGetBootDescription (Handles[Index]);
diff --git a/MdeModulePkg/Library/UefiBootManagerLib/UefiBootManagerLib.inf b/MdeModulePkg/Library/UefiBootManagerLib/UefiBootManagerLib.inf
index fe05d5f1cc..207420e334 100644
--- a/MdeModulePkg/Library/UefiBootManagerLib/UefiBootManagerLib.inf
+++ b/MdeModulePkg/Library/UefiBootManagerLib/UefiBootManagerLib.inf
@@ -119,3 +119,4 @@
   gEfiMdeModulePkgTokenSpaceGuid.PcdBootManagerMenuFile                     ## CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdDriverHealthConfigureForm               ## SOMETIMES_CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdMaxRepairCount                          ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdPrioritizeInternal
diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index b4855431b0..38e2573a6d 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -1077,6 +1077,9 @@
   # @Prompt Enable UEFI Stack Guard.
   gEfiMdeModulePkgTokenSpaceGuid.PcdCpuStackGuard|FALSE|BOOLEAN|0x30001055
 
+  # Prioritize Internal Devices
+  gEfiMdeModulePkgTokenSpaceGuid.PcdPrioritizeInternal|FALSE|BOOLEAN|0x00000031
+
 [PcdsFixedAtBuild, PcdsPatchableInModule]
   ## Dynamic type PCD can be registered callback function for Pcd setting action.
   #  PcdMaxPeiPcdCallBackNumberPerPcdEntry indicates the maximum number of callback function
-- 
2.32.0