OvmfPkg/PlatformInitLib: Create MemDetect.c

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

Move functions in PlatformPei\MemDetect.c to PlatformInitLib\MemDetect.c.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>

OvmfPkg/Include/Library/PlatformInitLib.h

@@ -132,4 +132,41 @@ PlatformAddReservedMemoryBaseSizeHob (
   IN BOOLEAN               Cacheable
   );
 
+VOID
+EFIAPI
+PlatformQemuUc32BaseInitialization (
+  IN OUT EFI_HOB_PLATFORM_INFO  *PlatformInfoHob
+  );
+
+UINT32
+EFIAPI
+PlatformGetSystemMemorySizeBelow4gb (
+  IN EFI_HOB_PLATFORM_INFO  *PlatformInfoHob
+  );
+
+/**
+  Initialize the PhysMemAddressWidth field in PlatformInfoHob based on guest RAM size.
+**/
+VOID
+EFIAPI
+PlatformAddressWidthInitialization (
+  IN OUT EFI_HOB_PLATFORM_INFO  *PlatformInfoHob
+  );
+
+/**
+  Peform Memory Detection for QEMU / KVM
+
+**/
+VOID
+EFIAPI
+PlatformQemuInitializeRam (
+  IN EFI_HOB_PLATFORM_INFO  *PlatformInfoHob
+  );
+
+VOID
+EFIAPI
+PlatformQemuInitializeRamForS3 (
+  IN EFI_HOB_PLATFORM_INFO  *PlatformInfoHob
+  );
+
 #endif // PLATFORM_INIT_LIB_H_