#include <Library/MemoryAllocationLib.h>\r
#include <Library/PcdLib.h>\r
#include <Guid/XenInfo.h>\r
+#include <IndustryStandard/E820.h>\r
+#include <Library/ResourcePublicationLib.h>\r
+#include <Library/MtrrLib.h>\r
\r
#include "Platform.h"\r
#include "Xen.h"\r
return FALSE;\r
}\r
\r
+\r
+VOID\r
+XenPublishRamRegions (\r
+ VOID\r
+ )\r
+{\r
+ EFI_E820_ENTRY64 *E820Map;\r
+ UINT32 E820EntriesCount;\r
+ EFI_STATUS Status;\r
+\r
+ if (!mXen) {\r
+ return;\r
+ }\r
+\r
+ DEBUG ((EFI_D_INFO, "Using memory map provided by Xen\n"));\r
+\r
+ //\r
+ // Parse RAM in E820 map\r
+ //\r
+ Status = XenGetE820Map (&E820Map, &E820EntriesCount);\r
+\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ if (E820EntriesCount > 0) {\r
+ EFI_E820_ENTRY64 *Entry;\r
+ UINT32 Loop;\r
+\r
+ for (Loop = 0; Loop < E820EntriesCount; Loop++) {\r
+ Entry = E820Map + Loop;\r
+\r
+ //\r
+ // Only care about RAM\r
+ //\r
+ if (Entry->Type != EfiAcpiAddressRangeMemory) {\r
+ continue;\r
+ }\r
+\r
+ if (Entry->BaseAddr >= BASE_4GB) {\r
+ AddUntestedMemoryBaseSizeHob (Entry->BaseAddr, Entry->Length);\r
+ } else {\r
+ AddMemoryBaseSizeHob (Entry->BaseAddr, Entry->Length);\r
+ }\r
+\r
+ MtrrSetMemoryAttribute (Entry->BaseAddr, Entry->Length, CacheWriteBack);\r
+ }\r
+ }\r
+}\r
+\r
+\r
/**\r
Perform Xen PEI initialization.\r
\r
//\r
AddReservedMemoryBaseSizeHob (0xFC000000, 0x1000000);\r
\r
+ PcdSetBool (PcdPciDisableBusEnumeration, TRUE);\r
+\r
return EFI_SUCCESS;\r
}\r