4 Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
5 Copyright (c) 2011, Andrei Warkentin <andreiw@motorola.com>
7 This program and the accompanying materials
8 are licensed and made available under the terms and conditions of the BSD License
9 which accompanies this distribution. The full text of the license may be found at
10 http://opensource.org/licenses/bsd-license.php
12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
18 // The package level header files this module uses
23 // The Library classes this module consumes
25 #include <Library/DebugLib.h>
26 #include <Library/HobLib.h>
27 #include <Library/IoLib.h>
28 #include <Library/MemoryAllocationLib.h>
29 #include <Library/PcdLib.h>
30 #include <Library/PciLib.h>
31 #include <Library/PeimEntryPoint.h>
32 #include <Library/PeiServicesLib.h>
33 #include <Library/ResourcePublicationLib.h>
34 #include <Guid/MemoryTypeInformation.h>
35 #include <Ppi/MasterBootMode.h>
36 #include <IndustryStandard/Pci22.h>
37 #include <Guid/XenInfo.h>
38 #include <IndustryStandard/E820.h>
39 #include <Library/ResourcePublicationLib.h>
40 #include <Library/MtrrLib.h>
45 EFI_MEMORY_TYPE_INFORMATION mDefaultMemoryTypeInformation
[] = {
46 { EfiACPIMemoryNVS
, 0x004 },
47 { EfiACPIReclaimMemory
, 0x008 },
48 { EfiReservedMemoryType
, 0x004 },
49 { EfiRuntimeServicesData
, 0x024 },
50 { EfiRuntimeServicesCode
, 0x030 },
51 { EfiBootServicesCode
, 0x180 },
52 { EfiBootServicesData
, 0xF00 },
53 { EfiMaxMemoryType
, 0x000 }
57 EFI_PEI_PPI_DESCRIPTOR mPpiBootMode
[] = {
59 EFI_PEI_PPI_DESCRIPTOR_PPI
| EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST
,
60 &gEfiPeiMasterBootModePpiGuid
,
67 AddIoMemoryBaseSizeHob (
68 EFI_PHYSICAL_ADDRESS MemoryBase
,
72 BuildResourceDescriptorHob (
73 EFI_RESOURCE_MEMORY_MAPPED_IO
,
74 EFI_RESOURCE_ATTRIBUTE_PRESENT
|
75 EFI_RESOURCE_ATTRIBUTE_INITIALIZED
|
76 EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE
|
77 EFI_RESOURCE_ATTRIBUTE_TESTED
,
84 AddReservedMemoryBaseSizeHob (
85 EFI_PHYSICAL_ADDRESS MemoryBase
,
89 BuildResourceDescriptorHob (
90 EFI_RESOURCE_MEMORY_RESERVED
,
91 EFI_RESOURCE_ATTRIBUTE_PRESENT
|
92 EFI_RESOURCE_ATTRIBUTE_INITIALIZED
|
93 EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE
|
94 EFI_RESOURCE_ATTRIBUTE_TESTED
,
101 AddIoMemoryRangeHob (
102 EFI_PHYSICAL_ADDRESS MemoryBase
,
103 EFI_PHYSICAL_ADDRESS MemoryLimit
106 AddIoMemoryBaseSizeHob (MemoryBase
, (UINT64
)(MemoryLimit
- MemoryBase
));
111 AddMemoryBaseSizeHob (
112 EFI_PHYSICAL_ADDRESS MemoryBase
,
116 BuildResourceDescriptorHob (
117 EFI_RESOURCE_SYSTEM_MEMORY
,
118 EFI_RESOURCE_ATTRIBUTE_PRESENT
|
119 EFI_RESOURCE_ATTRIBUTE_INITIALIZED
|
120 EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE
|
121 EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE
|
122 EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE
|
123 EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
|
124 EFI_RESOURCE_ATTRIBUTE_TESTED
,
133 EFI_PHYSICAL_ADDRESS MemoryBase
,
134 EFI_PHYSICAL_ADDRESS MemoryLimit
137 AddMemoryBaseSizeHob (MemoryBase
, (UINT64
)(MemoryLimit
- MemoryBase
));
142 AddUntestedMemoryBaseSizeHob (
143 EFI_PHYSICAL_ADDRESS MemoryBase
,
147 BuildResourceDescriptorHob (
148 EFI_RESOURCE_SYSTEM_MEMORY
,
149 EFI_RESOURCE_ATTRIBUTE_PRESENT
|
150 EFI_RESOURCE_ATTRIBUTE_INITIALIZED
|
151 EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE
|
152 EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE
|
153 EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE
|
154 EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
,
162 AddUntestedMemoryRangeHob (
163 EFI_PHYSICAL_ADDRESS MemoryBase
,
164 EFI_PHYSICAL_ADDRESS MemoryLimit
167 AddUntestedMemoryBaseSizeHob (MemoryBase
, (UINT64
)(MemoryLimit
- MemoryBase
));
171 XenMemMapInitialization (
175 EFI_E820_ENTRY64
*E820Map
;
176 UINT32 E820EntriesCount
;
179 DEBUG ((EFI_D_INFO
, "Using memory map provided by Xen\n"));
182 // Create Memory Type Information HOB
185 &gEfiMemoryTypeInformationGuid
,
186 mDefaultMemoryTypeInformation
,
187 sizeof(mDefaultMemoryTypeInformation
)
191 // Add PCI IO Port space available for PCI resource allocations.
193 BuildResourceDescriptorHob (
195 EFI_RESOURCE_ATTRIBUTE_PRESENT
|
196 EFI_RESOURCE_ATTRIBUTE_INITIALIZED
,
202 // Video memory + Legacy BIOS region
204 AddIoMemoryRangeHob (0x0A0000, BASE_1MB
);
207 // Parse RAM in E820 map
209 Status
= XenGetE820Map(&E820Map
, &E820EntriesCount
);
211 ASSERT_EFI_ERROR (Status
);
213 if (E820EntriesCount
> 0) {
214 EFI_E820_ENTRY64
*Entry
;
217 for (Loop
= 0; Loop
< E820EntriesCount
; Loop
++) {
218 Entry
= E820Map
+ Loop
;
221 // Only care about RAM
223 if (Entry
->Type
!= EfiAcpiAddressRangeMemory
) {
227 if (Entry
->BaseAddr
>= BASE_4GB
) {
228 AddUntestedMemoryBaseSizeHob (Entry
->BaseAddr
, Entry
->Length
);
230 AddMemoryBaseSizeHob (Entry
->BaseAddr
, Entry
->Length
);
233 MtrrSetMemoryAttribute (Entry
->BaseAddr
, Entry
->Length
, CacheWriteBack
);
240 MemMapInitialization (
241 EFI_PHYSICAL_ADDRESS TopOfMemory
245 // Create Memory Type Information HOB
248 &gEfiMemoryTypeInformationGuid
,
249 mDefaultMemoryTypeInformation
,
250 sizeof(mDefaultMemoryTypeInformation
)
254 // Add PCI IO Port space available for PCI resource allocations.
256 BuildResourceDescriptorHob (
258 EFI_RESOURCE_ATTRIBUTE_PRESENT
|
259 EFI_RESOURCE_ATTRIBUTE_INITIALIZED
,
265 // Video memory + Legacy BIOS region
267 AddIoMemoryRangeHob (0x0A0000, BASE_1MB
);
270 // address purpose size
271 // ------------ -------- -------------------------
272 // max(top, 2g) PCI MMIO 0xFC000000 - max(top, 2g)
273 // 0xFC000000 gap 44 MB
274 // 0xFEC00000 IO-APIC 4 KB
275 // 0xFEC01000 gap 1020 KB
276 // 0xFED00000 HPET 1 KB
277 // 0xFED00400 gap 1023 KB
278 // 0xFEE00000 LAPIC 1 MB
280 AddIoMemoryRangeHob (TopOfMemory
< BASE_2GB
? BASE_2GB
: TopOfMemory
, 0xFC000000);
281 AddIoMemoryBaseSizeHob (0xFEC00000, SIZE_4KB
);
282 AddIoMemoryBaseSizeHob (0xFED00000, SIZE_1KB
);
283 AddIoMemoryBaseSizeHob (PcdGet32(PcdCpuLocalApicBaseAddress
), SIZE_1MB
);
298 // Build the CPU hob with 36-bit addressing and 16-bits of IO space.
300 BuildCpuHob (36, 16);
303 // If PMREGMISC/PMIOSE is set, assume the ACPI PMBA has been configured (for
304 // example by Xen) and skip the setup here. This matches the logic in
305 // AcpiTimerLibConstructor ().
307 if ((PciRead8 (PCI_LIB_ADDRESS (0, 1, 3, 0x80)) & 0x01) == 0) {
309 // The PEI phase should be exited with fully accessibe PIIX4 IO space:
313 PCI_LIB_ADDRESS (0, 1, 3, 0x40),
315 PcdGet16 (PcdAcpiPmBaseAddress
)
319 // 2. set PCICMD/IOSE
322 PCI_LIB_ADDRESS (0, 1, 3, PCI_COMMAND_OFFSET
),
323 EFI_PCI_COMMAND_IO_SPACE
327 // 3. set PMREGMISC/PMIOSE
329 PciOr8 (PCI_LIB_ADDRESS (0, 1, 3, 0x80), 0x01);
335 BootModeInitialization (
340 Status
= PeiServicesSetBootMode (BOOT_WITH_FULL_CONFIGURATION
);
341 ASSERT_EFI_ERROR (Status
);
343 Status
= PeiServicesInstallPpi (mPpiBootMode
);
344 ASSERT_EFI_ERROR (Status
);
349 ReserveEmuVariableNvStore (
352 EFI_PHYSICAL_ADDRESS VariableStore
;
355 // Allocate storage for NV variables early on so it will be
356 // at a consistent address. Since VM memory is preserved
357 // across reboots, this allows the NV variable storage to survive
361 (EFI_PHYSICAL_ADDRESS
)(UINTN
)
362 AllocateAlignedRuntimePages (
363 EFI_SIZE_TO_PAGES (2 * PcdGet32 (PcdFlashNvStorageFtwSpareSize
)),
364 PcdGet32 (PcdFlashNvStorageFtwSpareSize
)
367 "Reserved variable store memory: 0x%lX; size: %dkb\n",
369 (2 * PcdGet32 (PcdFlashNvStorageFtwSpareSize
)) / 1024
371 PcdSet64 (PcdEmuVariableNvStoreReserved
, VariableStore
);
382 DEBUG ((EFI_D_INFO
, "CMOS:\n"));
384 for (Loop
= 0; Loop
< 0x80; Loop
++) {
385 if ((Loop
% 0x10) == 0) {
386 DEBUG ((EFI_D_INFO
, "%02x:", Loop
));
388 DEBUG ((EFI_D_INFO
, " %02x", CmosRead8 (Loop
)));
389 if ((Loop
% 0x10) == 0xf) {
390 DEBUG ((EFI_D_INFO
, "\n"));
397 Perform Platform PEI initialization.
399 @param FileHandle Handle of the file being invoked.
400 @param PeiServices Describes the list of possible PEI Services.
402 @return EFI_SUCCESS The PEIM initialized successfully.
408 IN EFI_PEI_FILE_HANDLE FileHandle
,
409 IN CONST EFI_PEI_SERVICES
**PeiServices
412 EFI_PHYSICAL_ADDRESS TopOfMemory
;
417 DEBUG ((EFI_D_ERROR
, "Platform PEIM Loaded\n"));
421 XenLeaf
= XenDetect ();
425 PcdSetBool (PcdPciDisableBusEnumeration
, TRUE
);
427 TopOfMemory
= MemDetect ();
431 DEBUG ((EFI_D_INFO
, "Xen was detected\n"));
432 InitializeXen (XenLeaf
);
435 ReserveEmuVariableNvStore ();
437 PeiFvInitialization ();
440 XenMemMapInitialization ();
442 MemMapInitialization (TopOfMemory
);
445 MiscInitialization ();
447 BootModeInitialization ();