#include <Guid/MemoryTypeInformation.h>\r
#include <Ppi/MasterBootMode.h>\r
#include <IndustryStandard/Pci22.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 "Cmos.h"\r
AddUntestedMemoryBaseSizeHob (MemoryBase, (UINT64)(MemoryLimit - MemoryBase));\r
}\r
\r
+VOID\r
+XenMemMapInitialization (\r
+ VOID\r
+ )\r
+{\r
+ EFI_E820_ENTRY64 *E820Map;\r
+ UINT32 E820EntriesCount;\r
+ EFI_STATUS Status;\r
+\r
+ DEBUG ((EFI_D_INFO, "Using memory map provided by Xen\n"));\r
+\r
+ //\r
+ // Create Memory Type Information HOB\r
+ //\r
+ BuildGuidDataHob (\r
+ &gEfiMemoryTypeInformationGuid,\r
+ mDefaultMemoryTypeInformation,\r
+ sizeof(mDefaultMemoryTypeInformation)\r
+ );\r
+\r
+ //\r
+ // Add PCI IO Port space available for PCI resource allocations.\r
+ //\r
+ BuildResourceDescriptorHob (\r
+ EFI_RESOURCE_IO,\r
+ EFI_RESOURCE_ATTRIBUTE_PRESENT |\r
+ EFI_RESOURCE_ATTRIBUTE_INITIALIZED,\r
+ 0xC000,\r
+ 0x4000\r
+ );\r
+\r
+ //\r
+ // Video memory + Legacy BIOS region\r
+ //\r
+ AddIoMemoryRangeHob (0x0A0000, BASE_1MB);\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
VOID\r
MemMapInitialization (\r
//\r
VariableStore =\r
(EFI_PHYSICAL_ADDRESS)(UINTN)\r
- AllocateAlignedPages (\r
+ AllocateAlignedRuntimePages (\r
EFI_SIZE_TO_PAGES (2 * PcdGet32 (PcdFlashNvStorageFtwSpareSize)),\r
PcdGet32 (PcdFlashNvStorageFtwSpareSize)\r
);\r
)\r
{\r
EFI_PHYSICAL_ADDRESS TopOfMemory;\r
+ UINT32 XenLeaf;\r
+\r
+ TopOfMemory = 0;\r
\r
DEBUG ((EFI_D_ERROR, "Platform PEIM Loaded\n"));\r
\r
DebugDumpCmos ();\r
\r
- TopOfMemory = MemDetect ();\r
+ XenLeaf = XenDetect ();\r
+\r
+ PublishPeiMemory ();\r
+\r
+ if (XenLeaf != 0) {\r
+ PcdSetBool (PcdPciDisableBusEnumeration, TRUE);\r
+ } else {\r
+ TopOfMemory = MemDetect ();\r
+ }\r
\r
- InitializeXen ();\r
+ if (XenLeaf != 0) {\r
+ DEBUG ((EFI_D_INFO, "Xen was detected\n"));\r
+ InitializeXen (XenLeaf);\r
+ }\r
\r
ReserveEmuVariableNvStore ();\r
\r
PeiFvInitialization ();\r
\r
- MemMapInitialization (TopOfMemory);\r
+ if (XenLeaf != 0) {\r
+ XenMemMapInitialization ();\r
+ } else {\r
+ MemMapInitialization (TopOfMemory);\r
+ }\r
\r
MiscInitialization ();\r
\r