OvmfPkg: non-null PcdLib instance for GraphicsConsoleDxe

GraphicsConsoleDxe (a UEFI_DRIVER under MdeModulePkg/Universal/Console)
determines the preferred video resolution from the dynamic PCDs
- gEfiMdeModulePkgTokenSpaceGuid.PcdVideoHorizontalResolution
- gEfiMdeModulePkgTokenSpaceGuid.PcdVideoVerticalResolution

In one of the next patches, we'd like to change these PCDs. In order for
GraphicsConsoleDxe to retrieve the new values dynamically,
- it must be linked with the non-null instance of PcdLib,
- OvmfPkg must provide dynamic defaults.

We keep MdeModulePkg's 800x600 default resolution. (The UEFI specification
requires video drivers to support 800x600.)

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15362 6f19259b-4bc3-4df7-8a09-765794883524

OvmfPkg/OvmfPkgIa32.dsc

@@ -327,6 +327,8 @@
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0
   gEfiMdeModulePkgTokenSpaceGuid.PcdPciDisableBusEnumeration|FALSE
+  gEfiMdeModulePkgTokenSpaceGuid.PcdVideoHorizontalResolution|800
+  gEfiMdeModulePkgTokenSpaceGuid.PcdVideoVerticalResolution|600
 
 
 ################################################################################
@@ -434,7 +436,10 @@
   MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf
   MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxe.inf
   MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterDxe.inf
-  MdeModulePkg/Universal/Console/GraphicsConsoleDxe/GraphicsConsoleDxe.inf
+  MdeModulePkg/Universal/Console/GraphicsConsoleDxe/GraphicsConsoleDxe.inf {
+    <LibraryClasses>
+      PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
+  }
   MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf
   MdeModulePkg/Universal/DevicePathDxe/DevicePathDxe.inf {
     <LibraryClasses>

OvmfPkg/OvmfPkgIa32X64.dsc

@@ -333,6 +333,8 @@
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0
   gEfiMdeModulePkgTokenSpaceGuid.PcdPciDisableBusEnumeration|FALSE
+  gEfiMdeModulePkgTokenSpaceGuid.PcdVideoHorizontalResolution|800
+  gEfiMdeModulePkgTokenSpaceGuid.PcdVideoVerticalResolution|600
 
 
 ################################################################################
@@ -441,7 +443,10 @@
   MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf
   MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxe.inf
   MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterDxe.inf
-  MdeModulePkg/Universal/Console/GraphicsConsoleDxe/GraphicsConsoleDxe.inf
+  MdeModulePkg/Universal/Console/GraphicsConsoleDxe/GraphicsConsoleDxe.inf {
+    <LibraryClasses>
+      PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
+  }
   MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf
   MdeModulePkg/Universal/DevicePathDxe/DevicePathDxe.inf {
     <LibraryClasses>

OvmfPkg/OvmfPkgX64.dsc

@@ -332,6 +332,8 @@
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0
   gEfiMdeModulePkgTokenSpaceGuid.PcdPciDisableBusEnumeration|FALSE
+  gEfiMdeModulePkgTokenSpaceGuid.PcdVideoHorizontalResolution|800
+  gEfiMdeModulePkgTokenSpaceGuid.PcdVideoVerticalResolution|600
 
 
 ################################################################################
@@ -439,7 +441,10 @@
   MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf
   MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxe.inf
   MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterDxe.inf
-  MdeModulePkg/Universal/Console/GraphicsConsoleDxe/GraphicsConsoleDxe.inf
+  MdeModulePkg/Universal/Console/GraphicsConsoleDxe/GraphicsConsoleDxe.inf {
+    <LibraryClasses>
+      PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
+  }
   MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf
   MdeModulePkg/Universal/DevicePathDxe/DevicePathDxe.inf {
     <LibraryClasses>