Commit | Line | Data |
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bc252e8e EB |
1 | ;------------------------------------------------------------------------------\r |
2 | ; @file\r | |
74b7ec58 | 3 | ; First code executed by processor after resetting.\r |
bc252e8e | 4 | ;\r |
eee1d2ca | 5 | ; Copyright (c) 2008 - 2014, Intel Corporation. All rights reserved.<BR>\r |
0acd8697 | 6 | ; SPDX-License-Identifier: BSD-2-Clause-Patent\r |
bc252e8e EB |
7 | ;\r |
8 | ;------------------------------------------------------------------------------\r | |
9 | \r | |
10 | BITS 16\r | |
11 | \r | |
12 | ALIGN 16\r | |
13 | \r | |
eee1d2ca JJ |
14 | ;\r |
15 | ; Pad the image size to 4k when page tables are in VTF0\r | |
16 | ;\r | |
17 | ; If the VTF0 image has page tables built in, then we need to make\r | |
18 | ; sure the end of VTF0 is 4k above where the page tables end.\r | |
19 | ;\r | |
20 | ; This is required so the page tables will be 4k aligned when VTF0 is\r | |
21 | ; located just below 0x100000000 (4GB) in the firmware device.\r | |
22 | ;\r | |
23 | %ifdef ALIGN_TOP_TO_4K_FOR_PAGING\r | |
24 | TIMES (0x1000 - ($ - EndOfPageTables) - 0x20) DB 0\r | |
25 | %endif\r | |
26 | \r | |
bc252e8e EB |
27 | applicationProcessorEntryPoint:\r |
28 | ;\r | |
29 | ; Application Processors entry point\r | |
30 | ;\r | |
31 | ; GenFv generates code aligned on a 4k boundary which will jump to this\r | |
32 | ; location. (0xffffffe0) This allows the Local APIC Startup IPI to be\r | |
33 | ; used to wake up the application processors.\r | |
34 | ;\r | |
eee1d2ca | 35 | jmp EarlyApInitReal16\r |
bc252e8e EB |
36 | \r |
37 | ALIGN 8\r | |
38 | \r | |
39 | DD 0\r | |
40 | \r | |
41 | ;\r | |
42 | ; The VTF signature\r | |
43 | ;\r | |
44 | ; VTF-0 means that the VTF (Volume Top File) code does not require\r | |
45 | ; any fixups.\r | |
46 | ;\r | |
47 | vtfSignature:\r | |
48 | DB 'V', 'T', 'F', 0\r | |
49 | \r | |
50 | ALIGN 16\r | |
51 | \r | |
52 | resetVector:\r | |
53 | ;\r | |
54 | ; Reset Vector\r | |
55 | ;\r | |
56 | ; This is where the processor will begin execution\r | |
57 | ;\r | |
8332983e | 58 | nop\r |
59 | nop\r | |
eee1d2ca | 60 | jmp EarlyBspInitReal16\r |
bc252e8e EB |
61 | \r |
62 | ALIGN 16\r | |
63 | \r | |
64 | fourGigabytes:\r | |
65 | \r |