3 * Copyright (c) 2011-2012, ARM Limited. All rights reserved.
5 * This program and the accompanying materials
6 * are licensed and made available under the terms and conditions of the BSD License
7 * which accompanies this distribution. The full text of the license may be found at
8 * http://opensource.org/licenses/bsd-license.php
10 * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
17 #include <Library/DebugAgentLib.h>
18 #include <Library/PrePiLib.h>
19 #include <Library/PrintLib.h>
20 #include <Library/PeCoffGetEntryPointLib.h>
21 #include <Library/PrePiHobListPointerLib.h>
22 #include <Library/TimerLib.h>
23 #include <Library/PerformanceLib.h>
25 #include <Ppi/GuidedSectionExtraction.h>
26 #include <Guid/LzmaDecompress.h>
27 #include <Guid/ArmGlobalVariableHob.h>
30 #include "LzmaDecompress.h"
32 #define IS_XIP() (((UINT32)FixedPcdGet32 (PcdFdBaseAddress) > (UINT32)(FixedPcdGet32 (PcdSystemMemoryBase) + FixedPcdGet32 (PcdSystemMemorySize))) || \
33 ((FixedPcdGet32 (PcdFdBaseAddress) + FixedPcdGet32 (PcdFdSize)) < FixedPcdGet32 (PcdSystemMemoryBase)))
35 // Not used when PrePi in run in XIP mode
36 UINTN mGlobalVariableBase
= 0;
39 PrePiCommonExceptionEntry (
46 ExtractGuidedSectionLibConstructor (
52 LzmaDecompressLibConstructor (
58 BuildGlobalVariableHob (
59 IN EFI_PHYSICAL_ADDRESS GlobalVariableBase
,
60 IN UINT32 GlobalVariableSize
63 ARM_HOB_GLOBAL_VARIABLE
*Hob
;
65 Hob
= CreateHob (EFI_HOB_TYPE_GUID_EXTENSION
, sizeof (ARM_HOB_GLOBAL_VARIABLE
));
68 CopyGuid (&(Hob
->Header
.Name
), &gArmGlobalVariableGuid
);
69 Hob
->GlobalVariableBase
= GlobalVariableBase
;
70 Hob
->GlobalVariableSize
= GlobalVariableSize
;
75 IN UINTN UefiMemoryBase
,
77 IN UINTN GlobalVariableBase
,
78 IN UINT64 StartTimeStamp
81 EFI_HOB_HANDOFF_INFO_TABLE
* HobList
;
87 // If ensure the FD is either part of the System Memory or totally outside of the System Memory (XIP)
89 ((FixedPcdGet32 (PcdFdBaseAddress
) >= FixedPcdGet32 (PcdSystemMemoryBase
)) &&
90 ((UINT32
)(FixedPcdGet32 (PcdFdBaseAddress
) + FixedPcdGet32 (PcdFdSize
)) <= (UINT32
)(FixedPcdGet32 (PcdSystemMemoryBase
) + FixedPcdGet32 (PcdSystemMemorySize
)))));
92 // Enable program flow prediction, if supported.
93 ArmEnableBranchPrediction ();
95 if (FixedPcdGet32(PcdVFPEnabled
)) {
99 // Initialize the Serial Port
100 SerialPortInitialize ();
101 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"UEFI firmware (version %s built at %a on %a)\n\r",
102 (CHAR16
*)PcdGetPtr(PcdFirmwareVersionString
), __TIME__
, __DATE__
);
103 SerialPortWrite ((UINT8
*) Buffer
, CharCount
);
105 // Initialize the Debug Agent for Source Level Debugging
106 InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC
, NULL
, NULL
);
107 SaveAndSetDebugTimerInterrupt (TRUE
);
109 // Declare the PI/UEFI memory region
110 HobList
= HobConstructor (
111 (VOID
*)UefiMemoryBase
,
112 FixedPcdGet32 (PcdSystemMemoryUefiRegionSize
),
113 (VOID
*)UefiMemoryBase
,
114 (VOID
*)StacksBase
// The top of the UEFI Memory is reserved for the stacks
116 PrePeiSetHobList (HobList
);
118 // Initialize MMU and Memory HOBs (Resource Descriptor HOBs)
119 Status
= MemoryPeim (UefiMemoryBase
, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize
));
120 ASSERT_EFI_ERROR (Status
);
122 // Create the Stacks HOB (reserve the memory for all stacks)
123 if (ArmIsMpCore ()) {
124 StacksSize
= PcdGet32 (PcdCPUCorePrimaryStackSize
) + (FixedPcdGet32(PcdClusterCount
) * 4 * FixedPcdGet32(PcdCPUCoreSecondaryStackSize
));
126 StacksSize
= PcdGet32 (PcdCPUCorePrimaryStackSize
);
128 BuildStackHob (StacksBase
, StacksSize
);
130 // Declare the Global Variable HOB
131 BuildGlobalVariableHob (GlobalVariableBase
, FixedPcdGet32 (PcdPeiGlobalVariableSize
));
133 //TODO: Call CpuPei as a library
134 BuildCpuHob (PcdGet8 (PcdPrePiCpuMemorySize
), PcdGet8 (PcdPrePiCpuIoSize
));
137 SetBootMode (ArmPlatformGetBootMode ());
139 // Initialize Platform HOBs (CpuHob and FvHob)
140 Status
= PlatformPeim ();
141 ASSERT_EFI_ERROR (Status
);
143 // Now, the HOB List has been initialized, we can register performance information
144 PERF_START (NULL
, "PEI", NULL
, StartTimeStamp
);
146 // SEC phase needs to run library constructors by hand.
147 ExtractGuidedSectionLibConstructor ();
148 LzmaDecompressLibConstructor ();
150 // Build HOBs to pass up our version of stuff the DXE Core needs to save space
151 BuildPeCoffLoaderHob ();
152 BuildExtractSectionHob (
153 &gLzmaCustomDecompressGuid
,
154 LzmaGuidedSectionGetInfo
,
155 LzmaGuidedSectionExtraction
158 // Assume the FV that contains the SEC (our code) also contains a compressed FV.
159 Status
= DecompressFirstFv ();
160 ASSERT_EFI_ERROR (Status
);
162 // Load the DXE Core and transfer control to it
163 Status
= LoadDxeCoreFromFv (NULL
, 0);
164 ASSERT_EFI_ERROR (Status
);
170 IN UINTN UefiMemoryBase
,
172 IN UINTN GlobalVariableBase
175 UINT64 StartTimeStamp
;
177 // Initialize the platform specific controllers
178 ArmPlatformInitialize (MpId
);
180 if (IS_PRIMARY_CORE(MpId
) && PerformanceMeasurementEnabled ()) {
181 // Initialize the Timer Library to setup the Timer HW controller
183 // We cannot call yet the PerformanceLib because the HOB List has not been initialized
184 StartTimeStamp
= GetPerformanceCounter ();
190 ArmCleanInvalidateDataCache ();
192 // Invalidate instruction cache
193 ArmInvalidateInstructionCache ();
195 //TODO:Drain Write Buffer
197 // Enable Instruction & Data caches
198 ArmEnableDataCache ();
199 ArmEnableInstructionCache ();
201 // Define the Global Variable region when we are not running in XIP
203 if (IS_PRIMARY_CORE(MpId
)) {
204 mGlobalVariableBase
= GlobalVariableBase
;
206 // Signal the Global Variable Region is defined (event: ARM_CPU_EVENT_DEFAULT)
210 // Wait the Primay core has defined the address of the Global Variable region (event: ARM_CPU_EVENT_DEFAULT)
215 // Write VBAR - The Vector table must be 32-byte aligned
216 ASSERT (((UINT32
)PrePiVectorTable
& ((1 << 5)-1)) == 0);
217 ArmWriteVBar ((UINT32
)PrePiVectorTable
);
219 // If not primary Jump to Secondary Main
220 if (IS_PRIMARY_CORE(MpId
)) {
221 // Goto primary Main.
222 PrimaryMain (UefiMemoryBase
, StacksBase
, GlobalVariableBase
, StartTimeStamp
);
224 SecondaryMain (MpId
);
227 // DXE Core should always load and never return
232 PrePiCommonExceptionEntry (
242 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"Reset Exception at 0x%X\n\r",LR
);
245 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"Undefined Exception at 0x%X\n\r",LR
);
248 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"SWI Exception at 0x%X\n\r",LR
);
251 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"PrefetchAbort Exception at 0x%X\n\r",LR
);
254 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"DataAbort Exception at 0x%X\n\r",LR
);
257 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"Reserved Exception at 0x%X\n\r",LR
);
260 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"IRQ Exception at 0x%X\n\r",LR
);
263 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"FIQ Exception at 0x%X\n\r",LR
);
266 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"Unknown Exception at 0x%X\n\r",LR
);
269 SerialPortWrite ((UINT8
*) Buffer
, CharCount
);