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Line 120... | Line 120... | ||
120 | 120 | ||
121 | /* |
121 | /* |
122 | * Save 0xa to address 0xf of the CMOS RAM. |
122 | * Save 0xa to address 0xf of the CMOS RAM. |
123 | * BIOS will not do the POST after the INIT signal. |
123 | * BIOS will not do the POST after the INIT signal. |
124 | */ |
124 | */ |
125 | pio_write_8(0x70, 0xf); |
125 | pio_write_8((ioport8_t *)0x70, 0xf); |
126 | pio_write_8(0x71, 0xa); |
126 | pio_write_8((ioport8_t *)0x71, 0xa); |
127 | 127 | ||
128 | pic_disable_irqs(0xffff); |
128 | pic_disable_irqs(0xffff); |
129 | apic_init(); |
129 | apic_init(); |
130 | 130 | ||
131 | uint8_t apic = l_apic_id(); |
131 | uint8_t apic = l_apic_id(); |
Line 152... | Line 152... | ||
152 | } |
152 | } |
153 | 153 | ||
154 | /* |
154 | /* |
155 | * Prepare new GDT for CPU in question. |
155 | * Prepare new GDT for CPU in question. |
156 | */ |
156 | */ |
- | 157 | ||
- | 158 | /* XXX Flag FRAME_LOW_4_GiB was removed temporarily, |
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- | 159 | * it needs to be replaced by a generic fuctionality of |
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- | 160 | * the memory subsystem |
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- | 161 | */ |
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157 | gdt_new = (struct descriptor *) malloc(GDT_ITEMS * |
162 | gdt_new = (struct descriptor *) malloc(GDT_ITEMS * |
158 | sizeof(struct descriptor), FRAME_ATOMIC | FRAME_LOW_4_GiB); |
163 | sizeof(struct descriptor), FRAME_ATOMIC); |
159 | if (!gdt_new) |
164 | if (!gdt_new) |
160 | panic("Cannot allocate memory for GDT."); |
165 | panic("Cannot allocate memory for GDT."); |
161 | 166 | ||
162 | memcpy(gdt_new, gdt, GDT_ITEMS * sizeof(struct descriptor)); |
167 | memcpy(gdt_new, gdt, GDT_ITEMS * sizeof(struct descriptor)); |
163 | memsetb(&gdt_new[TSS_DES], sizeof(struct descriptor), 0); |
168 | memsetb(&gdt_new[TSS_DES], sizeof(struct descriptor), 0); |