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/*
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/*
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 * Copyright (c) 2001-2004 Jakub Jermar
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 * Copyright (c) 2008 Jakub Jermar
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 * Copyright (c) 2005-2006 Ondrej Palkovsky
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 * Copyright (c) 2005-2006 Ondrej Palkovsky
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 * All rights reserved.
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 * All rights reserved.
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 *
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * modification, are permitted provided that the following conditions
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    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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    /* KTEXT descriptor */
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    /* KTEXT descriptor */
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    { .limit_0_15  = 0xffff,
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    { .limit_0_15  = 0xffff,
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      .base_0_15   = 0,
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      .base_0_15   = 0,
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      .base_16_23  = 0,
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      .base_16_23  = 0,
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      .access      = AR_PRESENT | AR_CODE | DPL_KERNEL | AR_READABLE ,
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      .access      = AR_PRESENT | AR_CODE | DPL_KERNEL | AR_READABLE,
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      .limit_16_19 = 0xf,
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      .limit_16_19 = 0xf,
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      .available   = 0,
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      .available   = 0,
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      .longmode    = 1,
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      .longmode    = 1,
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      .special     = 0,
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      .special     = 0,
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      .granularity = 1,
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      .granularity = 1,
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     * on AMD64 it is 64-bit - 2 items in table */
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     * on AMD64 it is 64-bit - 2 items in table */
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    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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    /* VESA Init descriptor */
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    /* VESA Init descriptor */
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#ifdef CONFIG_FB   
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#ifdef CONFIG_FB   
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    { 0xffff, 0, VESA_INIT_SEGMENT>>12, AR_PRESENT | AR_CODE | DPL_KERNEL, 0xf, 0, 0, 0, 0, 0 }
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    { 0xffff, 0, VESA_INIT_SEGMENT >> 12, AR_PRESENT | AR_CODE | DPL_KERNEL,
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      0xf, 0, 0, 0, 0, 0
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    }
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#endif
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#endif
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};
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};
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idescriptor_t idt[IDT_ITEMS];
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idescriptor_t idt[IDT_ITEMS];
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ptr_16_64_t gdtr = {.limit = sizeof(gdt), .base= (uint64_t) gdt };
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ptr_16_64_t gdtr = {.limit = sizeof(gdt), .base = (uint64_t) gdt };
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ptr_16_64_t idtr = {.limit = sizeof(idt), .base= (uint64_t) idt };
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ptr_16_64_t idtr = {.limit = sizeof(idt), .base = (uint64_t) idt };
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static tss_t tss;
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static tss_t tss;
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tss_t *tss_p = NULL;
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tss_t *tss_p = NULL;
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void gdt_tss_setbase(descriptor_t *d, uintptr_t base)
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void gdt_tss_setbase(descriptor_t *d, uintptr_t base)
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        d->selector = gdtselector(KTEXT_DES);
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        d->selector = gdtselector(KTEXT_DES);
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        d->present = 1;
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        d->present = 1;
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        d->type = AR_INTERRUPT; /* masking interrupt */
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        d->type = AR_INTERRUPT; /* masking interrupt */
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        idt_setoffset(d, ((uintptr_t) interrupt_handlers) + i*interrupt_handler_size);
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        idt_setoffset(d, ((uintptr_t) interrupt_handlers) +
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            i * interrupt_handler_size);
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    }
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    }
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}
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}
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/** Initialize segmentation - code/data/idt tables
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/** Initialize segmentation - code/data/idt tables
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 *
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 *