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Rev 3104 Rev 3790
Line 70... Line 70...
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        ops = &mps_config_operations;
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        ops = &mps_config_operations;
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    }
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    }
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    l_apic_address = (uintptr_t) frame_alloc(ONE_FRAME, FRAME_ATOMIC | FRAME_KA);
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    l_apic_address = (uintptr_t) frame_alloc(ONE_FRAME, FRAME_ATOMIC | FRAME_KA);
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    if (!l_apic_address)
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    if (!l_apic_address)
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        panic("cannot allocate address for l_apic\n");
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        panic("Cannot allocate address for l_apic.");
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    io_apic_address = (uintptr_t) frame_alloc(ONE_FRAME, FRAME_ATOMIC | FRAME_KA);
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    io_apic_address = (uintptr_t) frame_alloc(ONE_FRAME, FRAME_ATOMIC | FRAME_KA);
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    if (!io_apic_address)
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    if (!io_apic_address)
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        panic("cannot allocate address for io_apic\n");
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        panic("Cannot allocate address for io_apic.");
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    if (config.cpu_count > 1) {    
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    if (config.cpu_count > 1) {    
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        page_mapping_insert(AS_KERNEL, l_apic_address, (uintptr_t) l_apic,
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        page_mapping_insert(AS_KERNEL, l_apic_address, (uintptr_t) l_apic,
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                  PAGE_NOT_CACHEABLE | PAGE_WRITE);
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                  PAGE_NOT_CACHEABLE | PAGE_WRITE);
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        page_mapping_insert(AS_KERNEL, io_apic_address, (uintptr_t) io_apic,
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        page_mapping_insert(AS_KERNEL, io_apic_address, (uintptr_t) io_apic,
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        /*
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        /*
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         * Prepare new GDT for CPU in question.
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         * Prepare new GDT for CPU in question.
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         */
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         */
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        if (!(gdt_new = (struct descriptor *) malloc(GDT_ITEMS * sizeof(struct descriptor), FRAME_ATOMIC)))
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        if (!(gdt_new = (struct descriptor *) malloc(GDT_ITEMS * sizeof(struct descriptor), FRAME_ATOMIC)))
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            panic("couldn't allocate memory for GDT\n");
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            panic("Cannot allocate memory for GDT.");
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        memcpy(gdt_new, gdt, GDT_ITEMS * sizeof(struct descriptor));
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        memcpy(gdt_new, gdt, GDT_ITEMS * sizeof(struct descriptor));
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        memsetb(&gdt_new[TSS_DES], sizeof(struct descriptor), 0);
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        memsetb(&gdt_new[TSS_DES], sizeof(struct descriptor), 0);
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        gdtr.base = (uintptr_t) gdt_new;
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        gdtr.base = (uintptr_t) gdt_new;
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