}\r
\r
VOID\r
-XenMemMapInitialization (\r
+MemMapInitialization (\r
VOID\r
)\r
{\r
//\r
AddIoMemoryRangeHob (0x0A0000, BASE_1MB);\r
\r
- XenPublishRamRegions ();\r
-}\r
-\r
-\r
-VOID\r
-MemMapInitialization (\r
- EFI_PHYSICAL_ADDRESS TopOfMemory\r
- )\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
+ if (!mXen) {\r
+ UINT32 TopOfLowRam;\r
+ TopOfLowRam = GetSystemMemorySizeBelow4gb ();\r
\r
- //\r
- // address purpose size\r
- // ------------ -------- -------------------------\r
- // max(top, 2g) PCI MMIO 0xFC000000 - max(top, 2g)\r
- // 0xFC000000 gap 44 MB\r
- // 0xFEC00000 IO-APIC 4 KB\r
- // 0xFEC01000 gap 1020 KB\r
- // 0xFED00000 HPET 1 KB\r
- // 0xFED00400 gap 1023 KB\r
- // 0xFEE00000 LAPIC 1 MB\r
- //\r
- AddIoMemoryRangeHob (TopOfMemory < BASE_2GB ? BASE_2GB : TopOfMemory, 0xFC000000);\r
- AddIoMemoryBaseSizeHob (0xFEC00000, SIZE_4KB);\r
- AddIoMemoryBaseSizeHob (0xFED00000, SIZE_1KB);\r
- AddIoMemoryBaseSizeHob (PcdGet32(PcdCpuLocalApicBaseAddress), SIZE_1MB);\r
+ //\r
+ // address purpose size\r
+ // ------------ -------- -------------------------\r
+ // max(top, 2g) PCI MMIO 0xFC000000 - max(top, 2g)\r
+ // 0xFC000000 gap 44 MB\r
+ // 0xFEC00000 IO-APIC 4 KB\r
+ // 0xFEC01000 gap 1020 KB\r
+ // 0xFED00000 HPET 1 KB\r
+ // 0xFED00400 gap 1023 KB\r
+ // 0xFEE00000 LAPIC 1 MB\r
+ //\r
+ AddIoMemoryRangeHob (TopOfLowRam < BASE_2GB ?\r
+ BASE_2GB : TopOfLowRam, 0xFC000000);\r
+ AddIoMemoryBaseSizeHob (0xFEC00000, SIZE_4KB);\r
+ AddIoMemoryBaseSizeHob (0xFED00000, SIZE_1KB);\r
+ AddIoMemoryBaseSizeHob (PcdGet32(PcdCpuLocalApicBaseAddress), SIZE_1MB);\r
+ } else {\r
+ XenPublishRamRegions ();\r
+ }\r
}\r
\r
\r
IN CONST EFI_PEI_SERVICES **PeiServices\r
)\r
{\r
- EFI_PHYSICAL_ADDRESS TopOfMemory;\r
-\r
- TopOfMemory = 0;\r
-\r
DEBUG ((EFI_D_ERROR, "Platform PEIM Loaded\n"));\r
\r
DebugDumpCmos ();\r
PublishPeiMemory ();\r
\r
if (!mXen) {\r
- TopOfMemory = MemDetect ();\r
+ MemDetect ();\r
}\r
\r
if (mXen) {\r
\r
PeiFvInitialization ();\r
\r
- if (mXen) {\r
- XenMemMapInitialization ();\r
- } else {\r
- MemMapInitialization (TopOfMemory);\r
- }\r
+ MemMapInitialization ();\r
\r
MiscInitialization ();\r
\r