void
vbeint10(void)
{
#if (SMP)
long id = k_curcpu->id;
#endif
static int first = 1;
uint64_t *gdt;
struct m_farptr *farptr;
if (first) {
kmemcpy((void *)BOOTREALBASE,
&realstart,
(unsigned long)&realend - (unsigned long)&realstart);
first = 0;
}
realint10();
#if (SMP)
gdt = &kerngdt[id][0];
#else
gdt = kerngdt;
#endif
farptr = &realgdtptr;
farptr->lim = NGDT * sizeof(uint64_t) - 1;
farptr->adr = (uint32_t)gdt;
gdtinit(farptr);
return;
}
ASMLINK void
seginit(long id)
{
struct m_cpu *cpu = &cputab[id];
uint64_t *gdt;
#if (REENTRANTGDTINIT)
struct m_farptr *farptr = &gdtptrtab[id];
#else
struct m_farptr *farptr = &gdtptr;
#endif
/* set descriptors */
#if (SMP)
gdt = &kerngdt[id][0];
#else
gdt = kerngdt;
#endif
segsetdesc(&gdt[TEXTSEG], 0, NPAGEMAX - 1,
SEGCODE);
segsetdesc(&gdt[DATASEG], 0, NPAGEMAX - 1,
SEGDATA);
// segsetdesc(&gdt[STKSGEG], 0, NPAGEMAX - 1);
// segsetdesc(&gdt[TSSSEG], &tsstab[id], sizeof(struct m_tss), SEGTSS);
segsetdesc(&gdt[UTEXTSEG], 0, NPAGEMAX - 1,
SEGCODE | SEGUSER);
segsetdesc(&gdt[UDATASEG], 0, NPAGEMAX - 1,
SEGDATA | SEGUSER);
/* per-CPU data segment */
segsetdesc(&gdt[CPUSEG], &cpu->cpu, 4 * sizeof(void *) + sizeof(long),
SEGCPU);
#if (VBE)
gdt[REALCODESEG] = UINT64_C(0x00009a000000ffff);
gdt[REALDATASEG] = UINT64_C(0x000092000000ffff);
#endif
/* initialize segmentation */
farptr->lim = NGDT * sizeof(uint64_t) - 1;
farptr->adr = (uint32_t)gdt;
gdtinit(farptr);
return;
}
void
vbeint10(struct realregs *regs)
{
static int first = 1;
if (first) {
kmemcpy((void *)KERNREALBASE,
&realstart,
(unsigned long)&realend - (unsigned long)&realstart);
first = 0;
}
#if 0
kmemcpy((void *)(KERNREALSTK - sizeof(struct realregs)),
regs,
sizeof(struct realregs));
#endif
realint10();
gdtinit();
return;
}
