1 /** @file
2 *
3 * Copyright (c) 2011-2014, ARM Limited. All rights reserved.
4 *
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
9 *
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.
12 *
13 **/
14
15 #include <PiPei.h>
16
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>
24
25 #include <Ppi/GuidedSectionExtraction.h>
26 #include <Ppi/ArmMpCoreInfo.h>
27 #include <Guid/LzmaDecompress.h>
28
29 #include "PrePi.h"
30 #include "LzmaDecompress.h"
31
32 #define IS_XIP() (((UINT64)FixedPcdGet64 (PcdFdBaseAddress) > mSystemMemoryEnd) || \
33 ((FixedPcdGet64 (PcdFdBaseAddress) + FixedPcdGet32 (PcdFdSize)) < FixedPcdGet64 (PcdSystemMemoryBase)))
34
35 UINT64 mSystemMemoryEnd = FixedPcdGet64(PcdSystemMemoryBase) +
36 FixedPcdGet64(PcdSystemMemorySize) - 1;
37
38 EFI_STATUS
39 EFIAPI
40 ExtractGuidedSectionLibConstructor (
41 VOID
42 );
43
44 EFI_STATUS
45 EFIAPI
46 LzmaDecompressLibConstructor (
47 VOID
48 );
49
50 EFI_STATUS
GetPlatformPpi(IN EFI_GUID * PpiGuid,OUT VOID ** Ppi)51 GetPlatformPpi (
52 IN EFI_GUID *PpiGuid,
53 OUT VOID **Ppi
54 )
55 {
56 UINTN PpiListSize;
57 UINTN PpiListCount;
58 EFI_PEI_PPI_DESCRIPTOR *PpiList;
59 UINTN Index;
60
61 PpiListSize = 0;
62 ArmPlatformGetPlatformPpiList (&PpiListSize, &PpiList);
63 PpiListCount = PpiListSize / sizeof(EFI_PEI_PPI_DESCRIPTOR);
64 for (Index = 0; Index < PpiListCount; Index++, PpiList++) {
65 if (CompareGuid (PpiList->Guid, PpiGuid) == TRUE) {
66 *Ppi = PpiList->Ppi;
67 return EFI_SUCCESS;
68 }
69 }
70
71 return EFI_NOT_FOUND;
72 }
73
74 VOID
PrePiMain(IN UINTN UefiMemoryBase,IN UINTN StacksBase,IN UINT64 StartTimeStamp)75 PrePiMain (
76 IN UINTN UefiMemoryBase,
77 IN UINTN StacksBase,
78 IN UINT64 StartTimeStamp
79 )
80 {
81 EFI_HOB_HANDOFF_INFO_TABLE* HobList;
82 ARM_MP_CORE_INFO_PPI* ArmMpCoreInfoPpi;
83 UINTN ArmCoreCount;
84 ARM_CORE_INFO* ArmCoreInfoTable;
85 EFI_STATUS Status;
86 CHAR8 Buffer[100];
87 UINTN CharCount;
88 UINTN StacksSize;
89
90 // If ensure the FD is either part of the System Memory or totally outside of the System Memory (XIP)
91 ASSERT (IS_XIP() ||
92 ((FixedPcdGet64 (PcdFdBaseAddress) >= FixedPcdGet64 (PcdSystemMemoryBase)) &&
93 ((UINT64)(FixedPcdGet64 (PcdFdBaseAddress) + FixedPcdGet32 (PcdFdSize)) <= (UINT64)mSystemMemoryEnd)));
94
95 // Initialize the architecture specific bits
96 ArchInitialize ();
97
98 // Initialize the Serial Port
99 SerialPortInitialize ();
100 CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"UEFI firmware (version %s built at %a on %a)\n\r",
101 (CHAR16*)PcdGetPtr(PcdFirmwareVersionString), __TIME__, __DATE__);
102 SerialPortWrite ((UINT8 *) Buffer, CharCount);
103
104 // Initialize the Debug Agent for Source Level Debugging
105 InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC, NULL, NULL);
106 SaveAndSetDebugTimerInterrupt (TRUE);
107
108 // Declare the PI/UEFI memory region
109 HobList = HobConstructor (
110 (VOID*)UefiMemoryBase,
111 FixedPcdGet32 (PcdSystemMemoryUefiRegionSize),
112 (VOID*)UefiMemoryBase,
113 (VOID*)StacksBase // The top of the UEFI Memory is reserved for the stacks
114 );
115 PrePeiSetHobList (HobList);
116
117 // Initialize MMU and Memory HOBs (Resource Descriptor HOBs)
118 Status = MemoryPeim (UefiMemoryBase, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));
119 ASSERT_EFI_ERROR (Status);
120
121 // Create the Stacks HOB (reserve the memory for all stacks)
122 if (ArmIsMpCore ()) {
123 StacksSize = PcdGet32 (PcdCPUCorePrimaryStackSize) +
124 ((FixedPcdGet32 (PcdCoreCount) - 1) * FixedPcdGet32 (PcdCPUCoreSecondaryStackSize));
125 } else {
126 StacksSize = PcdGet32 (PcdCPUCorePrimaryStackSize);
127 }
128 BuildStackHob (StacksBase, StacksSize);
129
130 //TODO: Call CpuPei as a library
131 BuildCpuHob (PcdGet8 (PcdPrePiCpuMemorySize), PcdGet8 (PcdPrePiCpuIoSize));
132
133 if (ArmIsMpCore ()) {
134 // Only MP Core platform need to produce gArmMpCoreInfoPpiGuid
135 Status = GetPlatformPpi (&gArmMpCoreInfoPpiGuid, (VOID**)&ArmMpCoreInfoPpi);
136
137 // On MP Core Platform we must implement the ARM MP Core Info PPI (gArmMpCoreInfoPpiGuid)
138 ASSERT_EFI_ERROR (Status);
139
140 // Build the MP Core Info Table
141 ArmCoreCount = 0;
142 Status = ArmMpCoreInfoPpi->GetMpCoreInfo (&ArmCoreCount, &ArmCoreInfoTable);
143 if (!EFI_ERROR(Status) && (ArmCoreCount > 0)) {
144 // Build MPCore Info HOB
145 BuildGuidDataHob (&gArmMpCoreInfoGuid, ArmCoreInfoTable, sizeof (ARM_CORE_INFO) * ArmCoreCount);
146 }
147 }
148
149 // Set the Boot Mode
150 SetBootMode (ArmPlatformGetBootMode ());
151
152 // Initialize Platform HOBs (CpuHob and FvHob)
153 Status = PlatformPeim ();
154 ASSERT_EFI_ERROR (Status);
155
156 // Now, the HOB List has been initialized, we can register performance information
157 PERF_START (NULL, "PEI", NULL, StartTimeStamp);
158
159 // SEC phase needs to run library constructors by hand.
160 ExtractGuidedSectionLibConstructor ();
161 LzmaDecompressLibConstructor ();
162
163 // Build HOBs to pass up our version of stuff the DXE Core needs to save space
164 BuildPeCoffLoaderHob ();
165 BuildExtractSectionHob (
166 &gLzmaCustomDecompressGuid,
167 LzmaGuidedSectionGetInfo,
168 LzmaGuidedSectionExtraction
169 );
170
171 // Assume the FV that contains the SEC (our code) also contains a compressed FV.
172 Status = DecompressFirstFv ();
173 ASSERT_EFI_ERROR (Status);
174
175 // Load the DXE Core and transfer control to it
176 Status = LoadDxeCoreFromFv (NULL, 0);
177 ASSERT_EFI_ERROR (Status);
178 }
179
180 VOID
CEntryPoint(IN UINTN MpId,IN UINTN UefiMemoryBase,IN UINTN StacksBase)181 CEntryPoint (
182 IN UINTN MpId,
183 IN UINTN UefiMemoryBase,
184 IN UINTN StacksBase
185 )
186 {
187 UINT64 StartTimeStamp;
188
189 // Initialize the platform specific controllers
190 ArmPlatformInitialize (MpId);
191
192 if (ArmPlatformIsPrimaryCore (MpId) && PerformanceMeasurementEnabled ()) {
193 // Initialize the Timer Library to setup the Timer HW controller
194 TimerConstructor ();
195 // We cannot call yet the PerformanceLib because the HOB List has not been initialized
196 StartTimeStamp = GetPerformanceCounter ();
197 } else {
198 StartTimeStamp = 0;
199 }
200
201 // Data Cache enabled on Primary core when MMU is enabled.
202 ArmDisableDataCache ();
203 // Invalidate Data cache
204 ArmInvalidateDataCache ();
205 // Invalidate instruction cache
206 ArmInvalidateInstructionCache ();
207 // Enable Instruction Caches on all cores.
208 ArmEnableInstructionCache ();
209
210 // Define the Global Variable region when we are not running in XIP
211 if (!IS_XIP()) {
212 if (ArmPlatformIsPrimaryCore (MpId)) {
213 if (ArmIsMpCore()) {
214 // Signal the Global Variable Region is defined (event: ARM_CPU_EVENT_DEFAULT)
215 ArmCallSEV ();
216 }
217 } else {
218 // Wait the Primay core has defined the address of the Global Variable region (event: ARM_CPU_EVENT_DEFAULT)
219 ArmCallWFE ();
220 }
221 }
222
223 // If not primary Jump to Secondary Main
224 if (ArmPlatformIsPrimaryCore (MpId)) {
225 // Goto primary Main.
226 PrimaryMain (UefiMemoryBase, StacksBase, StartTimeStamp);
227 } else {
228 SecondaryMain (MpId);
229 }
230
231 // DXE Core should always load and never return
232 ASSERT (FALSE);
233 }
234
235