/**@file\r
Platform PEI driver\r
\r
- Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>\r
+ Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>\r
+ Copyright (c) 2011, Andrei Warkentin <andreiw@motorola.com>\r
+\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
#include <Library/ResourcePublicationLib.h>\r
#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
);\r
}\r
\r
+VOID\r
+AddReservedMemoryBaseSizeHob (\r
+ EFI_PHYSICAL_ADDRESS MemoryBase,\r
+ UINT64 MemorySize\r
+ )\r
+{\r
+ BuildResourceDescriptorHob (\r
+ EFI_RESOURCE_MEMORY_RESERVED,\r
+ EFI_RESOURCE_ATTRIBUTE_PRESENT |\r
+ EFI_RESOURCE_ATTRIBUTE_INITIALIZED |\r
+ EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |\r
+ EFI_RESOURCE_ATTRIBUTE_TESTED,\r
+ MemoryBase,\r
+ MemorySize\r
+ );\r
+}\r
\r
VOID\r
AddIoMemoryRangeHob (\r
AddUntestedMemoryBaseSizeHob (MemoryBase, (UINT64)(MemoryLimit - MemoryBase));\r
}\r
\r
-\r
VOID\r
-MemMapInitialization (\r
- EFI_PHYSICAL_ADDRESS TopOfMemory\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
//\r
BuildResourceDescriptorHob (\r
EFI_RESOURCE_IO,\r
- EFI_RESOURCE_ATTRIBUTE_PRESENT |\r
- EFI_RESOURCE_ATTRIBUTE_INITIALIZED,\r
- 0x1000,\r
- 0xF000\r
+ EFI_RESOURCE_ATTRIBUTE_PRESENT |\r
+ EFI_RESOURCE_ATTRIBUTE_INITIALIZED,\r
+ 0xC000,\r
+ 0x4000\r
);\r
\r
//\r
- // Add PCI MMIO space available to PCI resource allocations\r
+ // Video memory + Legacy BIOS region\r
//\r
- if (TopOfMemory < BASE_2GB) {\r
- AddIoMemoryBaseSizeHob (BASE_2GB, 0xFEC00000 - BASE_2GB);\r
- } else {\r
- AddIoMemoryBaseSizeHob (TopOfMemory, 0xFEC00000 - TopOfMemory);\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
+ EFI_PHYSICAL_ADDRESS TopOfMemory\r
+ )\r
+{\r
//\r
- // Local APIC range\r
+ // Create Memory Type Information HOB\r
//\r
- AddIoMemoryBaseSizeHob (0xFEC80000, SIZE_512KB);\r
+ BuildGuidDataHob (\r
+ &gEfiMemoryTypeInformationGuid,\r
+ mDefaultMemoryTypeInformation,\r
+ sizeof(mDefaultMemoryTypeInformation)\r
+ );\r
\r
//\r
- // I/O APIC range\r
+ // Add PCI IO Port space available for PCI resource allocations.\r
//\r
- AddIoMemoryBaseSizeHob (0xFEC00000, SIZE_512KB);\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
+ // 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
\r
\r
VOID\r
MiscInitialization (\r
+ VOID\r
)\r
{\r
//\r
BuildCpuHob (36, 16);\r
\r
//\r
- // Set the PM I/O base address to 0x400\r
+ // If PMREGMISC/PMIOSE is set, assume the ACPI PMBA has been configured (for\r
+ // example by Xen) and skip the setup here. This matches the logic in\r
+ // AcpiTimerLibConstructor ().\r
//\r
- PciAndThenOr32 (PCI_LIB_ADDRESS (0, 1, 3, 0x40), (UINT32) ~0xfc0, 0x400);\r
+ if ((PciRead8 (PCI_LIB_ADDRESS (0, 1, 3, 0x80)) & 0x01) == 0) {\r
+ //\r
+ // The PEI phase should be exited with fully accessibe PIIX4 IO space:\r
+ // 1. set PMBA\r
+ //\r
+ PciAndThenOr32 (\r
+ PCI_LIB_ADDRESS (0, 1, 3, 0x40),\r
+ (UINT32) ~0xFFC0,\r
+ PcdGet16 (PcdAcpiPmBaseAddress)\r
+ );\r
+\r
+ //\r
+ // 2. set PCICMD/IOSE\r
+ //\r
+ PciOr8 (\r
+ PCI_LIB_ADDRESS (0, 1, 3, PCI_COMMAND_OFFSET),\r
+ EFI_PCI_COMMAND_IO_SPACE\r
+ );\r
+\r
+ //\r
+ // 3. set PMREGMISC/PMIOSE\r
+ //\r
+ PciOr8 (PCI_LIB_ADDRESS (0, 1, 3, 0x80), 0x01);\r
+ }\r
}\r
\r
\r
BootModeInitialization (\r
)\r
{\r
- ASSERT_EFI_ERROR (PeiServicesSetBootMode (BOOT_WITH_FULL_CONFIGURATION));\r
- ASSERT_EFI_ERROR (PeiServicesInstallPpi (mPpiBootMode));\r
+ EFI_STATUS Status;\r
+\r
+ Status = PeiServicesSetBootMode (BOOT_WITH_FULL_CONFIGURATION);\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ Status = PeiServicesInstallPpi (mPpiBootMode);\r
+ ASSERT_EFI_ERROR (Status);\r
}\r
\r
\r
//\r
VariableStore =\r
(EFI_PHYSICAL_ADDRESS)(UINTN)\r
- AllocateRuntimePool (\r
- 2 * PcdGet32 (PcdFlashNvStorageFtwSpareSize)\r
+ AllocateAlignedRuntimePages (\r
+ EFI_SIZE_TO_PAGES (2 * PcdGet32 (PcdFlashNvStorageFtwSpareSize)),\r
+ PcdGet32 (PcdFlashNvStorageFtwSpareSize)\r
);\r
DEBUG ((EFI_D_INFO,\r
"Reserved variable store memory: 0x%lX; size: %dkb\n",\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
+ 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
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