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| Rev 144 | Rev 167 | ||
|---|---|---|---|
| Line 32... | Line 32... | ||
| 32 | #include <typedefs.h> |
32 | #include <typedefs.h> |
| 33 | #include <arch/interrupt.h> |
33 | #include <arch/interrupt.h> |
| 34 | #include <arch/asm.h> |
34 | #include <arch/asm.h> |
| 35 | #include <arch/context.h> |
35 | #include <arch/context.h> |
| 36 | #include <panic.h> |
36 | #include <panic.h> |
| - | 37 | #include <arch/mm/page.h> |
|
| 37 | 38 | ||
| 38 | /* |
39 | /* |
| 39 | * Early ia32 configuration functions and data structures. |
40 | * Early ia32 configuration functions and data structures. |
| 40 | */ |
41 | */ |
| 41 | 42 | ||
| Line 129... | Line 130... | ||
| 129 | 130 | ||
| 130 | 131 | ||
| 131 | /* Clean IOPL(12,13) and NT(14) flags in EFLAGS register */ |
132 | /* Clean IOPL(12,13) and NT(14) flags in EFLAGS register */ |
| 132 | static void clean_IOPL_NT_flags(void) |
133 | static void clean_IOPL_NT_flags(void) |
| 133 | { |
134 | { |
| 134 | asm |
135 | asm |
| 135 | ( |
136 | ( |
| 136 | "pushfl;" |
137 | "pushfl;" |
| 137 | "pop %%eax;" |
138 | "pop %%eax;" |
| 138 | "and $0xffff8fff,%%eax;" |
139 | "and $0xffff8fff,%%eax;" |
| 139 | "push %%eax;" |
140 | "push %%eax;" |
| 140 | "popfl;" |
141 | "popfl;" |
| 141 | : |
142 | : |
| Line 145... | Line 146... | ||
| 145 | } |
146 | } |
| 146 | 147 | ||
| 147 | /* Clean AM(18) flag in CR0 register */ |
148 | /* Clean AM(18) flag in CR0 register */ |
| 148 | static void clean_AM_flag(void) |
149 | static void clean_AM_flag(void) |
| 149 | { |
150 | { |
| 150 | asm |
151 | asm |
| 151 | ( |
152 | ( |
| 152 | "mov %%cr0,%%eax;" |
153 | "mov %%cr0,%%eax;" |
| 153 | "and $0xFFFBFFFF,%%eax;" |
154 | "and $0xFFFBFFFF,%%eax;" |
| 154 | "mov %%eax,%%cr0;" |
155 | "mov %%eax,%%cr0;" |
| 155 | : |
156 | : |
| 156 | : |
157 | : |
| 157 | :"%eax" |
158 | :"%eax" |
| 158 | ); |
159 | ); |
| 159 | } |
160 | } |
| 160 | 161 | ||
| 161 | - | ||
| 162 | - | ||
| 163 | - | ||
| 164 | - | ||
| 165 | void pm_init(void) |
162 | void pm_init(void) |
| 166 | { |
163 | { |
| 167 | struct descriptor *gdt_p = (struct descriptor *) PA2KA(gdtr.base); |
164 | struct descriptor *gdt_p = (struct descriptor *) PA2KA(gdtr.base); |
| 168 | 165 | ||
| 169 | /* |
166 | /* |