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static struct tss tss;
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static struct tss tss;
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struct tss *tss_p = NULL;
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struct tss *tss_p = NULL;
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/* gdtr is changed by kmp before next CPU is initialized */
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/* gdtr is changed by kmp before next CPU is initialized */
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struct ptr_16_32 gdtr __attribute__ ((section ("K_DATA_START"))) = { .limit = sizeof(gdt), .base = (__address) gdt };
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struct ptr_16_32 gdtr __attribute__ ((section ("K_DATA_START"))) = { .limit = sizeof(gdt), .base = KA2PA((__address) gdt) };
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struct ptr_16_32 idtr __attribute__ ((section ("K_DATA_START")))= { .limit = sizeof(idt), .base = (__address) idt };
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struct ptr_16_32 idtr __attribute__ ((section ("K_DATA_START"))) = { .limit = sizeof(idt), .base = KA2PA((__address) idt) };
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void gdt_setbase(struct descriptor *d, __address base)
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void gdt_setbase(struct descriptor *d, __address base)
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{
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{
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        d->base_0_15 = base & 0xffff;
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        d->base_0_15 = KA2PA(base) & 0xffff;
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        d->base_16_23 = (base >> 16) & 0xff;
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        d->base_16_23 = (KA2PA(base) >> 16) & 0xff;
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        d->base_24_31 = (base >> 24) & 0xff;
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        d->base_24_31 = (KA2PA(base) >> 24) & 0xff;
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}
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}
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void gdt_setlimit(struct descriptor *d, __address limit)
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void gdt_setlimit(struct descriptor *d, __u32 limit)
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{
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{
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        d->limit_0_15 = limit & 0xffff;
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        d->limit_0_15 = limit & 0xffff;
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        d->limit_16_19 = (limit >> 16) & 0xf;
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        d->limit_16_19 = (limit >> 16) & 0xf;
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}
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}
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void idt_setoffset(struct idescriptor *d, __address offset)
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void idt_setoffset(struct idescriptor *d, __address offset)
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{
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{
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    d->offset_0_15 = offset & 0xffff;
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    d->offset_0_15 = KA2PA(offset) & 0xffff;
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    d->offset_16_31 = offset >> 16;
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    d->offset_16_31 = KA2PA(offset) >> 16;
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}
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}
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void tss_initialize(struct tss *t)
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void tss_initialize(struct tss *t)
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{
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{
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    memsetb((__address) t, sizeof(struct tss), 0);
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    memsetb((__address) t, sizeof(struct tss), 0);