1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
|
/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <arch/hlt.h>
#include <bootstate.h>
#include <console/console.h>
#include <fsp/util.h>
#include <ip_checksum.h>
#include <string.h>
/* Compares two EFI GUIDs. Returns true of the GUIDs match, false otherwise. */
static bool compare_guid(const EFI_GUID *guid1, const EFI_GUID *guid2)
{
return !memcmp(guid1, guid2, sizeof(EFI_GUID));
}
/* Returns the pointer to the HOB list. */
void *get_hob_list(void)
{
void *hob_list;
hob_list = fsp_get_hob_list();
if (hob_list == NULL)
die("Call fsp_set_runtime() before this call!\n");
return hob_list;
}
/* Returns the next instance of a HOB type from the starting HOB. */
void *get_next_hob(uint16_t type, const void *hob_start)
{
EFI_PEI_HOB_POINTERS hob;
if (!hob_start)
return NULL;
hob.Raw = (UINT8 *)hob_start;
/* Parse the HOB list until end of list or matching type is found. */
while (!END_OF_HOB_LIST(hob.Raw)) {
if (hob.Header->HobType == type)
return hob.Raw;
if (GET_HOB_LENGTH(hob.Raw) < sizeof(*hob.Header))
break;
hob.Raw = GET_NEXT_HOB(hob.Raw);
}
return NULL;
}
/* Returns the first instance of a HOB type among the whole HOB list. */
void *get_first_hob(uint16_t type)
{
return get_next_hob(type, get_hob_list());
}
/* Returns the next instance of the matched GUID HOB from the starting HOB. */
void *get_next_guid_hob(const EFI_GUID *guid, const void *hob_start)
{
EFI_PEI_HOB_POINTERS hob;
hob.Raw = (uint8_t *)hob_start;
while ((hob.Raw = get_next_hob(EFI_HOB_TYPE_GUID_EXTENSION, hob.Raw))
!= NULL) {
if (compare_guid(guid, &hob.Guid->Name))
break;
hob.Raw = GET_NEXT_HOB(hob.Raw);
}
return hob.Raw;
}
/*
* Returns the first instance of the matched GUID HOB among the whole HOB list.
*/
void *get_first_guid_hob(const EFI_GUID *guid)
{
return get_next_guid_hob(guid, get_hob_list());
}
/*
* Returns the next instance of the matching resource HOB from the starting HOB.
*/
void *get_next_resource_hob(const EFI_GUID *guid, const void *hob_start)
{
EFI_PEI_HOB_POINTERS hob;
hob.Raw = (UINT8 *)hob_start;
while ((hob.Raw = get_next_hob(EFI_HOB_TYPE_RESOURCE_DESCRIPTOR,
hob.Raw)) != NULL) {
if (compare_guid(guid, &hob.ResourceDescriptor->Owner))
break;
hob.Raw = GET_NEXT_HOB(hob.Raw);
}
return hob.Raw;
}
/*
* Returns the first instance of the matching resource HOB among the whole HOB
* list.
*/
void *get_first_resource_hob(const EFI_GUID *guid)
{
return get_next_resource_hob(guid, get_hob_list());
}
static void print_hob_mem_attributes(void *hob_ptr)
{
EFI_MEMORY_TYPE hob_mem_type;
EFI_HOB_MEMORY_ALLOCATION *hob_memory_ptr = hob_ptr;
u64 hob_mem_addr = hob_memory_ptr->AllocDescriptor.MemoryBaseAddress;
u64 hob_mem_length = hob_memory_ptr->AllocDescriptor.MemoryLength;
hob_mem_type = hob_memory_ptr->AllocDescriptor.MemoryType;
static const char *hob_mem_type_names[15] = {
[EfiReservedMemoryType] = "EfiReservedMemoryType",
[EfiLoaderCode] = "EfiLoaderCode",
[EfiLoaderData] = "EfiLoaderData",
[EfiBootServicesCode] = "EfiBootServicesCode",
[EfiBootServicesData] = "EfiBootServicesData",
[EfiRuntimeServicesCode] = "EfiRuntimeServicesCode",
[EfiRuntimeServicesData] = "EfiRuntimeServicesData",
[EfiConventionalMemory] = "EfiConventionalMemory",
[EfiUnusableMemory] = "EfiUnusableMemory",
[EfiACPIReclaimMemory] = "EfiACPIReclaimMemory",
[EfiACPIMemoryNVS] = "EfiACPIMemoryNVS",
[EfiMemoryMappedIO] = "EfiMemoryMappedIO",
[EfiMemoryMappedIOPortSpace] = "EfiMemoryMappedIOPortSpace",
[EfiPalCode] = "EfiPalCode",
[EfiMaxMemoryType] = "EfiMaxMemoryType",
};
if (hob_mem_type >= ARRAY_SIZE(hob_mem_type_names))
hob_mem_type = EfiReservedMemoryType;
printk(BIOS_SPEW, " Memory type %s (0x%x)\n",
hob_mem_type_names[hob_mem_type],
(u32)hob_mem_type);
printk(BIOS_SPEW, " at location 0x%0lx with length 0x%0lx\n",
(unsigned long)hob_mem_addr,
(unsigned long)hob_mem_length);
}
static void print_hob_resource_attributes(void *hob_ptr)
{
EFI_HOB_RESOURCE_DESCRIPTOR *hob_resource_ptr =
(EFI_HOB_RESOURCE_DESCRIPTOR *)hob_ptr;
u32 hob_res_type = hob_resource_ptr->ResourceType;
u32 hob_res_attr = hob_resource_ptr->ResourceAttribute;
u64 hob_res_addr = hob_resource_ptr->PhysicalStart;
u64 hob_res_length = hob_resource_ptr->ResourceLength;
const char *hob_res_type_str = NULL;
/* HOB Resource Types */
switch (hob_res_type) {
case EFI_RESOURCE_SYSTEM_MEMORY:
hob_res_type_str = "EFI_RESOURCE_SYSTEM_MEMORY";
break;
case EFI_RESOURCE_MEMORY_MAPPED_IO:
hob_res_type_str = "EFI_RESOURCE_MEMORY_MAPPED_IO";
break;
case EFI_RESOURCE_IO:
hob_res_type_str = "EFI_RESOURCE_IO";
break;
case EFI_RESOURCE_FIRMWARE_DEVICE:
hob_res_type_str = "EFI_RESOURCE_FIRMWARE_DEVICE";
break;
case EFI_RESOURCE_MEMORY_MAPPED_IO_PORT:
hob_res_type_str = "EFI_RESOURCE_MEMORY_MAPPED_IO_PORT";
break;
case EFI_RESOURCE_MEMORY_RESERVED:
hob_res_type_str = "EFI_RESOURCE_MEMORY_RESERVED";
break;
case EFI_RESOURCE_IO_RESERVED:
hob_res_type_str = "EFI_RESOURCE_IO_RESERVED";
break;
case EFI_RESOURCE_MAX_MEMORY_TYPE:
hob_res_type_str = "EFI_RESOURCE_MAX_MEMORY_TYPE";
break;
default:
hob_res_type_str = "EFI_RESOURCE_UNKNOWN";
break;
}
printk(BIOS_SPEW, " Resource %s (0x%0x) has attributes 0x%0x\n",
hob_res_type_str, hob_res_type, hob_res_attr);
printk(BIOS_SPEW, " at location 0x%0lx with length 0x%0lx\n",
(unsigned long)hob_res_addr,
(unsigned long)hob_res_length);
}
static const char *get_hob_type_string(void *hob_ptr)
{
EFI_PEI_HOB_POINTERS hob;
const char *hob_type_string;
const EFI_GUID fsp_reserved_guid =
FSP_RESERVED_MEMORY_RESOURCE_HOB_GUID;
const EFI_GUID mrc_guid = FSP_NON_VOLATILE_STORAGE_HOB_GUID;
const EFI_GUID bootldr_tmp_mem_guid =
FSP_BOOTLOADER_TEMP_MEMORY_HOB_GUID;
const EFI_GUID bootldr_tolum_guid = FSP_BOOTLOADER_TOLUM_HOB_GUID;
const EFI_GUID graphics_info_guid = EFI_PEI_GRAPHICS_INFO_HOB_GUID;
const EFI_GUID memory_info_hob_guid = FSP_SMBIOS_MEMORY_INFO_GUID;
hob.Header = (EFI_HOB_GENERIC_HEADER *)hob_ptr;
switch (hob.Header->HobType) {
case EFI_HOB_TYPE_HANDOFF:
hob_type_string = "EFI_HOB_TYPE_HANDOFF";
break;
case EFI_HOB_TYPE_MEMORY_ALLOCATION:
hob_type_string = "EFI_HOB_TYPE_MEMORY_ALLOCATION";
break;
case EFI_HOB_TYPE_RESOURCE_DESCRIPTOR:
if (compare_guid(&fsp_reserved_guid, &hob.Guid->Name))
hob_type_string = "FSP_RESERVED_MEMORY_RESOURCE_HOB";
else if (compare_guid(&bootldr_tolum_guid, &hob.Guid->Name))
hob_type_string = "FSP_BOOTLOADER_TOLUM_HOB_GUID";
else
hob_type_string = "EFI_HOB_TYPE_RESOURCE_DESCRIPTOR";
break;
case EFI_HOB_TYPE_GUID_EXTENSION:
if (compare_guid(&bootldr_tmp_mem_guid, &hob.Guid->Name))
hob_type_string = "FSP_BOOTLOADER_TEMP_MEMORY_HOB";
else if (compare_guid(&mrc_guid, &hob.Guid->Name))
hob_type_string = "FSP_NON_VOLATILE_STORAGE_HOB";
else if (compare_guid(&graphics_info_guid, &hob.Guid->Name))
hob_type_string = "EFI_PEI_GRAPHICS_INFO_HOB_GUID";
else if (compare_guid(&memory_info_hob_guid, &hob.Guid->Name))
hob_type_string = "FSP_SMBIOS_MEMORY_INFO_GUID";
else
hob_type_string = "EFI_HOB_TYPE_GUID_EXTENSION";
break;
case EFI_HOB_TYPE_MEMORY_POOL:
hob_type_string = "EFI_HOB_TYPE_MEMORY_POOL";
break;
case EFI_HOB_TYPE_UNUSED:
hob_type_string = "EFI_HOB_TYPE_UNUSED";
break;
case EFI_HOB_TYPE_END_OF_HOB_LIST:
hob_type_string = "EFI_HOB_TYPE_END_OF_HOB_LIST";
break;
default:
hob_type_string = "EFI_HOB_TYPE_UNRECOGNIZED";
break;
}
return hob_type_string;
}
/*
* Print out a structure of all the HOBs
* that match a certain type:
* Print all types (0x0000)
* EFI_HOB_TYPE_HANDOFF (0x0001)
* EFI_HOB_TYPE_MEMORY_ALLOCATION (0x0002)
* EFI_HOB_TYPE_RESOURCE_DESCRIPTOR (0x0003)
* EFI_HOB_TYPE_GUID_EXTENSION (0x0004)
* EFI_HOB_TYPE_MEMORY_POOL (0x0007)
* EFI_HOB_TYPE_UNUSED (0xFFFE)
* EFI_HOB_TYPE_END_OF_HOB_LIST (0xFFFF)
*/
void print_hob_type_structure(u16 hob_type, void *hob_list_ptr)
{
u32 *current_hob;
u32 *next_hob = 0;
u8 last_hob = 0;
u32 current_type;
const char *current_type_str;
current_hob = hob_list_ptr;
/*
* Print out HOBs of our desired type until
* the end of the HOB list
*/
printk(BIOS_DEBUG, "\n=== FSP HOB Data Structure ===\n");
printk(BIOS_DEBUG, "%p: hob_list_ptr\n", hob_list_ptr);
do {
EFI_HOB_GENERIC_HEADER *current_header_ptr =
(EFI_HOB_GENERIC_HEADER *)current_hob;
/* Get the type of this HOB */
current_type = current_header_ptr->HobType;
current_type_str = get_hob_type_string(current_hob);
if (current_type == hob_type || hob_type == 0x0000) {
printk(BIOS_DEBUG, "HOB %p is an %s (type 0x%0x)\n",
current_hob, current_type_str,
current_type);
switch (current_type) {
case EFI_HOB_TYPE_MEMORY_ALLOCATION:
print_hob_mem_attributes(current_hob);
break;
case EFI_HOB_TYPE_RESOURCE_DESCRIPTOR:
print_hob_resource_attributes(current_hob);
break;
}
}
/* Check for end of HOB list */
last_hob = END_OF_HOB_LIST(current_hob);
if (!last_hob) {
/* Get next HOB pointer */
next_hob = GET_NEXT_HOB(current_hob);
/* Start on next HOB */
current_hob = next_hob;
}
} while (!last_hob);
printk(BIOS_DEBUG, "=== End of FSP HOB Data Structure ===\n\n");
}
|
