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e1f414b6 | 1 | #------------------------------------------------------------------------------\r |
2 | #\r | |
1f86b07d | 3 | # Copyright (c) 2006 - 2008, Intel Corporation\r |
e1f414b6 | 4 | # All rights reserved. This program and the accompanying materials\r |
5 | # are licensed and made available under the terms and conditions of the BSD License\r | |
6 | # which accompanies this distribution. The full text of the license may be found at\r | |
7 | # http://opensource.org/licenses/bsd-license.php\r | |
8 | #\r | |
9 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | #\r | |
12 | # Module Name:\r | |
13 | #\r | |
1f86b07d | 14 | # DisablePaging32.S\r |
e1f414b6 | 15 | #\r |
16 | # Abstract:\r | |
17 | #\r | |
18 | # InternalX86DisablePaging32 function\r | |
19 | #\r | |
20 | # Notes:\r | |
21 | #\r | |
22 | #------------------------------------------------------------------------------\r | |
23 | \r | |
24 | .globl ASM_PFX(InternalX86DisablePaging32)\r | |
25 | \r | |
26 | #------------------------------------------------------------------------------\r | |
27 | # VOID\r | |
28 | # EFIAPI\r | |
29 | # InternalX86DisablePaging32 (\r | |
30 | # IN SWITCH_STACK_ENTRY_POINT EntryPoint,\r | |
31 | # IN VOID *Context1, OPTIONAL\r | |
32 | # IN VOID *Context2, OPTIONAL\r | |
33 | # IN VOID *NewStack\r | |
34 | # );\r | |
35 | #------------------------------------------------------------------------------\r | |
36 | ASM_PFX(InternalX86DisablePaging32):\r | |
37 | movl 4(%esp), %ebx\r | |
38 | movl 8(%esp), %ecx\r | |
39 | movl 12(%esp), %edx\r | |
40 | pushfl\r | |
41 | pop %edi\r | |
42 | cli\r | |
43 | movl %cr0, %eax\r | |
44 | btrl $31, %eax\r | |
45 | movl 16(%esp), %esp\r | |
46 | movl %eax, %cr0\r | |
47 | push %edi\r | |
48 | popfl\r | |
49 | push %edx\r | |
50 | push %ecx\r | |
51 | call *%ebx\r | |
52 | jmp .\r |