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1 | /** @file\r | |
2 | \r | |
3 | Copyright (c) 2014 - 2018, Intel Corporation. All rights reserved.<BR>\r | |
4 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
5 | \r | |
6 | **/\r | |
7 | \r | |
8 | #include <PiPei.h>\r | |
9 | #include <Library/BaseLib.h>\r | |
10 | #include <Library/BaseMemoryLib.h>\r | |
11 | #include <Library/MemoryAllocationLib.h>\r | |
12 | #include <Library/DebugLib.h>\r | |
13 | #include <Library/PcdLib.h>\r | |
14 | #include <Library/HobLib.h>\r | |
15 | #include <Library/PeiServicesLib.h>\r | |
16 | #include <Library/FspCommonLib.h>\r | |
17 | #include <FspGlobalData.h>\r | |
18 | #include <FspEas.h>\r | |
19 | \r | |
20 | /**\r | |
21 | Get system memory resource descriptor by owner.\r | |
22 | \r | |
23 | @param[in] OwnerGuid resource owner guid\r | |
24 | **/\r | |
25 | EFI_HOB_RESOURCE_DESCRIPTOR *\r | |
26 | EFIAPI\r | |
27 | FspGetResourceDescriptorByOwner (\r | |
28 | IN EFI_GUID *OwnerGuid\r | |
29 | )\r | |
30 | {\r | |
31 | EFI_PEI_HOB_POINTERS Hob;\r | |
32 | \r | |
33 | //\r | |
34 | // Get the HOB list for processing\r | |
35 | //\r | |
36 | Hob.Raw = GetHobList ();\r | |
37 | \r | |
38 | //\r | |
39 | // Collect memory ranges\r | |
40 | //\r | |
41 | while (!END_OF_HOB_LIST (Hob)) {\r | |
42 | if (Hob.Header->HobType == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r | |
43 | if ((Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_MEMORY_RESERVED) && \\r | |
44 | (CompareGuid (&Hob.ResourceDescriptor->Owner, OwnerGuid))) {\r | |
45 | return Hob.ResourceDescriptor;\r | |
46 | }\r | |
47 | }\r | |
48 | Hob.Raw = GET_NEXT_HOB (Hob);\r | |
49 | }\r | |
50 | \r | |
51 | return NULL;\r | |
52 | }\r | |
53 | \r | |
54 | /**\r | |
55 | Get system memory from HOB.\r | |
56 | \r | |
57 | @param[in,out] LowMemoryLength less than 4G memory length\r | |
58 | @param[in,out] HighMemoryLength greater than 4G memory length\r | |
59 | **/\r | |
60 | VOID\r | |
61 | EFIAPI\r | |
62 | FspGetSystemMemorySize (\r | |
63 | IN OUT UINT64 *LowMemoryLength,\r | |
64 | IN OUT UINT64 *HighMemoryLength\r | |
65 | )\r | |
66 | {\r | |
67 | EFI_STATUS Status;\r | |
68 | EFI_BOOT_MODE BootMode;\r | |
69 | EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttribute;\r | |
70 | EFI_PEI_HOB_POINTERS Hob;\r | |
71 | \r | |
72 | ResourceAttribute = (\r | |
73 | EFI_RESOURCE_ATTRIBUTE_PRESENT |\r | |
74 | EFI_RESOURCE_ATTRIBUTE_INITIALIZED |\r | |
75 | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |\r | |
76 | EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |\r | |
77 | EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |\r | |
78 | EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE\r | |
79 | );\r | |
80 | \r | |
81 | Status = PeiServicesGetBootMode (&BootMode);\r | |
82 | ASSERT_EFI_ERROR (Status);\r | |
83 | \r | |
84 | if (BootMode != BOOT_ON_S3_RESUME) {\r | |
85 | ResourceAttribute |= EFI_RESOURCE_ATTRIBUTE_TESTED;\r | |
86 | }\r | |
87 | \r | |
88 | *HighMemoryLength = 0;\r | |
89 | *LowMemoryLength = SIZE_1MB;\r | |
90 | //\r | |
91 | // Get the HOB list for processing\r | |
92 | //\r | |
93 | Hob.Raw = GetHobList ();\r | |
94 | \r | |
95 | //\r | |
96 | // Collect memory ranges\r | |
97 | //\r | |
98 | while (!END_OF_HOB_LIST (Hob)) {\r | |
99 | if (Hob.Header->HobType == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r | |
100 | if ((Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) ||\r | |
101 | ((Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_MEMORY_RESERVED) &&\r | |
102 | (Hob.ResourceDescriptor->ResourceAttribute == ResourceAttribute))) {\r | |
103 | //\r | |
104 | // Need memory above 1MB to be collected here\r | |
105 | //\r | |
106 | if (Hob.ResourceDescriptor->PhysicalStart >= BASE_1MB &&\r | |
107 | Hob.ResourceDescriptor->PhysicalStart < (EFI_PHYSICAL_ADDRESS) BASE_4GB) {\r | |
108 | *LowMemoryLength += (UINT64) (Hob.ResourceDescriptor->ResourceLength);\r | |
109 | } else if (Hob.ResourceDescriptor->PhysicalStart >= (EFI_PHYSICAL_ADDRESS) BASE_4GB) {\r | |
110 | *HighMemoryLength += (UINT64) (Hob.ResourceDescriptor->ResourceLength);\r | |
111 | }\r | |
112 | }\r | |
113 | }\r | |
114 | Hob.Raw = GET_NEXT_HOB (Hob);\r | |
115 | }\r | |
116 | }\r |