IntelFsp2Pkg BaseFspPlatformLib: Remove Boot Loader tempram Migration
[mirror_edk2.git] / IntelFsp2Pkg / Library / BaseFspPlatformLib / FspPlatformMemory.c
1 /** @file
2
3 Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>
4 This program and the accompanying materials
5 are licensed and made available under the terms and conditions of the BSD License
6 which accompanies this distribution. The full text of the license may be found at
7 http://opensource.org/licenses/bsd-license.php.
8
9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
11
12 **/
13
14 #include <PiPei.h>
15 #include <Library/BaseLib.h>
16 #include <Library/BaseMemoryLib.h>
17 #include <Library/MemoryAllocationLib.h>
18 #include <Library/DebugLib.h>
19 #include <Library/PcdLib.h>
20 #include <Library/HobLib.h>
21 #include <Library/PeiServicesLib.h>
22 #include <Library/FspCommonLib.h>
23 #include <FspGlobalData.h>
24 #include <FspEas.h>
25
26 /**
27 Get system memory resource descriptor by owner.
28
29 @param[in] OwnerGuid resource owner guid
30 **/
31 EFI_HOB_RESOURCE_DESCRIPTOR *
32 EFIAPI
33 FspGetResourceDescriptorByOwner (
34 IN EFI_GUID *OwnerGuid
35 )
36 {
37 EFI_PEI_HOB_POINTERS Hob;
38
39 //
40 // Get the HOB list for processing
41 //
42 Hob.Raw = GetHobList ();
43
44 //
45 // Collect memory ranges
46 //
47 while (!END_OF_HOB_LIST (Hob)) {
48 if (Hob.Header->HobType == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {
49 if ((Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_MEMORY_RESERVED) && \
50 (CompareGuid (&Hob.ResourceDescriptor->Owner, OwnerGuid))) {
51 return Hob.ResourceDescriptor;
52 }
53 }
54 Hob.Raw = GET_NEXT_HOB (Hob);
55 }
56
57 return NULL;
58 }
59
60 /**
61 Get system memory from HOB.
62
63 @param[in,out] LowMemoryLength less than 4G memory length
64 @param[in,out] HighMemoryLength greater than 4G memory length
65 **/
66 VOID
67 EFIAPI
68 FspGetSystemMemorySize (
69 IN OUT UINT64 *LowMemoryLength,
70 IN OUT UINT64 *HighMemoryLength
71 )
72 {
73 EFI_STATUS Status;
74 EFI_BOOT_MODE BootMode;
75 EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttribute;
76 EFI_PEI_HOB_POINTERS Hob;
77
78 ResourceAttribute = (
79 EFI_RESOURCE_ATTRIBUTE_PRESENT |
80 EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
81 EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
82 EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
83 EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
84 EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
85 );
86
87 Status = PeiServicesGetBootMode (&BootMode);
88 ASSERT_EFI_ERROR (Status);
89
90 if (BootMode != BOOT_ON_S3_RESUME) {
91 ResourceAttribute |= EFI_RESOURCE_ATTRIBUTE_TESTED;
92 }
93
94 *HighMemoryLength = 0;
95 *LowMemoryLength = SIZE_1MB;
96 //
97 // Get the HOB list for processing
98 //
99 Hob.Raw = GetHobList ();
100
101 //
102 // Collect memory ranges
103 //
104 while (!END_OF_HOB_LIST (Hob)) {
105 if (Hob.Header->HobType == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {
106 if ((Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) ||
107 ((Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_MEMORY_RESERVED) &&
108 (Hob.ResourceDescriptor->ResourceAttribute == ResourceAttribute))) {
109 //
110 // Need memory above 1MB to be collected here
111 //
112 if (Hob.ResourceDescriptor->PhysicalStart >= BASE_1MB &&
113 Hob.ResourceDescriptor->PhysicalStart < (EFI_PHYSICAL_ADDRESS) BASE_4GB) {
114 *LowMemoryLength += (UINT64) (Hob.ResourceDescriptor->ResourceLength);
115 } else if (Hob.ResourceDescriptor->PhysicalStart >= (EFI_PHYSICAL_ADDRESS) BASE_4GB) {
116 *HighMemoryLength += (UINT64) (Hob.ResourceDescriptor->ResourceLength);
117 }
118 }
119 }
120 Hob.Raw = GET_NEXT_HOB (Hob);
121 }
122 }