3 * Copyright (c) 2011, 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/IoLib.h>
20 #include <Library/PrintLib.h>
21 #include <Library/PeCoffGetEntryPointLib.h>
22 #include <Library/TimerLib.h>
23 #include <Library/PerformanceLib.h>
25 #include <Ppi/GuidedSectionExtraction.h>
26 #include <Guid/LzmaDecompress.h>
29 #include "LzmaDecompress.h"
32 PrePiCommonExceptionEntry (
39 ExtractGuidedSectionLibConstructor (
45 LzmaDecompressLibConstructor (
51 IN UINTN UefiMemoryBase
,
52 IN UINT64 StartTimeStamp
55 EFI_HOB_HANDOFF_INFO_TABLE
** PrePiHobBase
;
63 // Enable program flow prediction, if supported.
64 ArmEnableBranchPrediction ();
66 if (FixedPcdGet32(PcdVFPEnabled
)) {
70 // Initialize the Serial Port
71 SerialPortInitialize ();
72 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"UEFI firmware built at %a on %a\n\r",__TIME__
, __DATE__
);
73 SerialPortWrite ((UINT8
*) Buffer
, CharCount
);
75 // Initialize the Debug Agent for Source Level Debugging
76 InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC
, NULL
, NULL
);
77 SaveAndSetDebugTimerInterrupt (TRUE
);
79 UefiMemoryTop
= UefiMemoryBase
+ FixedPcdGet32 (PcdSystemMemoryUefiRegionSize
);
80 StacksSize
= PcdGet32 (PcdCPUCoresNonSecStackSize
) * PcdGet32 (PcdMPCoreMaxCores
);
81 StacksBase
= UefiMemoryTop
- StacksSize
;
83 // Check the PcdCPUCoresNonSecStackBase match with the calculated StackBase
84 ASSERT (StacksBase
== PcdGet32 (PcdCPUCoresNonSecStackBase
));
86 PrePiHobBase
= (EFI_HOB_HANDOFF_INFO_TABLE
**)(PcdGet32 (PcdCPUCoresNonSecStackBase
) + (PcdGet32 (PcdCPUCoresNonSecStackSize
) / 2) - PcdGet32 (PcdHobListPtrGlobalOffset
));
88 // Declare the PI/UEFI memory region
89 *PrePiHobBase
= HobConstructor (
90 (VOID
*)UefiMemoryBase
,
91 FixedPcdGet32 (PcdSystemMemoryUefiRegionSize
),
92 (VOID
*)UefiMemoryBase
,
93 (VOID
*)StacksBase
// The top of the UEFI Memory is reserved for the stacks
96 // Initialize MMU and Memory HOBs (Resource Descriptor HOBs)
97 Status
= MemoryPeim (UefiMemoryBase
, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize
));
98 ASSERT_EFI_ERROR (Status
);
100 // Create the Stacks HOB (reserve the memory for all stacks)
101 BuildStackHob (StacksBase
, StacksSize
);
104 SetBootMode (ArmPlatformGetBootMode ());
106 // Initialize Platform HOBs (CpuHob and FvHob)
107 Status
= PlatformPeim ();
108 ASSERT_EFI_ERROR (Status
);
110 BuildMemoryTypeInformationHob ();
112 // Now, the HOB List has been initialized, we can register performance information
113 PERF_START (NULL
, "PEI", NULL
, StartTimeStamp
);
115 // SEC phase needs to run library constructors by hand.
116 ExtractGuidedSectionLibConstructor ();
117 LzmaDecompressLibConstructor ();
119 // Build HOBs to pass up our version of stuff the DXE Core needs to save space
120 BuildPeCoffLoaderHob ();
121 BuildExtractSectionHob (
122 &gLzmaCustomDecompressGuid
,
123 LzmaGuidedSectionGetInfo
,
124 LzmaGuidedSectionExtraction
127 // Assume the FV that contains the SEC (our code) also contains a compressed FV.
128 Status
= DecompressFirstFv ();
129 ASSERT_EFI_ERROR (Status
);
131 // Load the DXE Core and transfer control to it
132 Status
= LoadDxeCoreFromFv (NULL
, 0);
133 ASSERT_EFI_ERROR (Status
);
139 IN UINTN UefiMemoryBase
142 UINT64 StartTimeStamp
;
144 if ((CoreId
== ARM_PRIMARY_CORE
) && PerformanceMeasurementEnabled ()) {
145 // Initialize the Timer Library to setup the Timer HW controller
147 // We cannot call yet the PerformanceLib because the HOB List has not been initialized
148 StartTimeStamp
= GetPerformanceCounter ();
154 ArmCleanInvalidateDataCache ();
156 // Invalidate instruction cache
157 ArmInvalidateInstructionCache ();
159 //TODO:Drain Write Buffer
161 // Enable Instruction & Data caches
162 ArmEnableDataCache ();
163 ArmEnableInstructionCache ();
165 // Write VBAR - The Vector table must be 32-byte aligned
166 ASSERT (((UINT32
)PrePiVectorTable
& ((1 << 5)-1)) == 0);
167 ArmWriteVBar ((UINT32
)PrePiVectorTable
);
169 // If not primary Jump to Secondary Main
170 if (CoreId
== ARM_PRIMARY_CORE
) {
171 // Goto primary Main.
172 PrimaryMain (UefiMemoryBase
, StartTimeStamp
);
174 SecondaryMain (CoreId
);
177 // DXE Core should always load and never return
182 PrePiCommonExceptionEntry (
192 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"Reset Exception at 0x%X\n\r",LR
);
195 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"Undefined Exception at 0x%X\n\r",LR
);
198 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"SWI Exception at 0x%X\n\r",LR
);
201 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"PrefetchAbort Exception at 0x%X\n\r",LR
);
204 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"DataAbort Exception at 0x%X\n\r",LR
);
207 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"Reserved Exception at 0x%X\n\r",LR
);
210 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"IRQ Exception at 0x%X\n\r",LR
);
213 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"FIQ Exception at 0x%X\n\r",LR
);
216 CharCount
= AsciiSPrint (Buffer
,sizeof (Buffer
),"Unknown Exception at 0x%X\n\r",LR
);
219 SerialPortWrite ((UINT8
*) Buffer
, CharCount
);