OvmfPkg/PlatformBootManagerLib: Don't update progress if Pcd is 0

[mirror_edk2.git] / OvmfPkg / Library / PlatformBootManagerLib / BdsPlatform.c

diff --git a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
index 70df6b841accb8177d8d772250c982be799c50e7..8af9b71f18a3df4e0bf5dd2ebf3678fbc515698e 100644 (file)
--- a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
+++ b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
@@ -1631,9 +1631,18 @@ PlatformBootManagerWaitCallback (
 {\r
   EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION Black;\r
   EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION White;\r
-  UINT16                              Timeout;\r
+  UINT16                              TimeoutInitial;\r
 \r
-  Timeout = PcdGet16 (PcdPlatformBootTimeOut);\r
+  TimeoutInitial = PcdGet16 (PcdPlatformBootTimeOut);\r
+\r
+  //\r
+  // If PcdPlatformBootTimeOut is set to zero, then we consider\r
+  // that no progress update should be enacted (since we'd only\r
+  // ever display a one-shot progress of either 0% or 100%).\r
+  //\r
+  if (TimeoutInitial == 0) {\r
+    return;\r
+  }\r
 \r
   Black.Raw = 0x00000000;\r
   White.Raw = 0x00FFFFFF;\r
@@ -1643,7 +1652,7 @@ PlatformBootManagerWaitCallback (
     Black.Pixel,\r
     L"Start boot option",\r
     White.Pixel,\r
-    (Timeout - TimeoutRemain) * 100 / Timeout,\r
+    (TimeoutInitial - TimeoutRemain) * 100 / TimeoutInitial,\r
     0\r
     );\r
 }\r