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| Rev 3209 | Rev 3790 | ||
|---|---|---|---|
| Line 73... | Line 73... | ||
| 73 | } |
73 | } |
| 74 | 74 | ||
| 75 | l_apic_address = (uintptr_t) frame_alloc(ONE_FRAME, |
75 | l_apic_address = (uintptr_t) frame_alloc(ONE_FRAME, |
| 76 | FRAME_ATOMIC | FRAME_KA); |
76 | FRAME_ATOMIC | FRAME_KA); |
| 77 | if (!l_apic_address) |
77 | if (!l_apic_address) |
| 78 | panic("cannot allocate address for l_apic\n"); |
78 | panic("Cannot allocate address for l_apic."); |
| 79 | 79 | ||
| 80 | io_apic_address = (uintptr_t) frame_alloc(ONE_FRAME, |
80 | io_apic_address = (uintptr_t) frame_alloc(ONE_FRAME, |
| 81 | FRAME_ATOMIC | FRAME_KA); |
81 | FRAME_ATOMIC | FRAME_KA); |
| 82 | if (!io_apic_address) |
82 | if (!io_apic_address) |
| 83 | panic("cannot allocate address for io_apic\n"); |
83 | panic("Cannot allocate address for io_apic."); |
| 84 | 84 | ||
| 85 | if (config.cpu_count > 1) { |
85 | if (config.cpu_count > 1) { |
| 86 | page_mapping_insert(AS_KERNEL, l_apic_address, |
86 | page_mapping_insert(AS_KERNEL, l_apic_address, |
| 87 | (uintptr_t) l_apic, PAGE_NOT_CACHEABLE | PAGE_WRITE); |
87 | (uintptr_t) l_apic, PAGE_NOT_CACHEABLE | PAGE_WRITE); |
| 88 | page_mapping_insert(AS_KERNEL, io_apic_address, |
88 | page_mapping_insert(AS_KERNEL, io_apic_address, |
| Line 155... | Line 155... | ||
| 155 | * Prepare new GDT for CPU in question. |
155 | * Prepare new GDT for CPU in question. |
| 156 | */ |
156 | */ |
| 157 | gdt_new = (struct descriptor *) malloc(GDT_ITEMS * |
157 | gdt_new = (struct descriptor *) malloc(GDT_ITEMS * |
| 158 | sizeof(struct descriptor), FRAME_ATOMIC | FRAME_LOW_4_GiB); |
158 | sizeof(struct descriptor), FRAME_ATOMIC | FRAME_LOW_4_GiB); |
| 159 | if (!gdt_new) |
159 | if (!gdt_new) |
| 160 | panic("couldn't allocate memory for GDT\n"); |
160 | panic("Cannot allocate memory for GDT."); |
| 161 | 161 | ||
| 162 | memcpy(gdt_new, gdt, GDT_ITEMS * sizeof(struct descriptor)); |
162 | memcpy(gdt_new, gdt, GDT_ITEMS * sizeof(struct descriptor)); |
| 163 | memsetb(&gdt_new[TSS_DES], sizeof(struct descriptor), 0); |
163 | memsetb(&gdt_new[TSS_DES], sizeof(struct descriptor), 0); |
| 164 | protected_ap_gdtr.limit = GDT_ITEMS * sizeof(struct descriptor); |
164 | protected_ap_gdtr.limit = GDT_ITEMS * sizeof(struct descriptor); |
| 165 | protected_ap_gdtr.base = KA2PA((uintptr_t) gdt_new); |
165 | protected_ap_gdtr.base = KA2PA((uintptr_t) gdt_new); |