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kernel: fpu init to separate function; also move fpu init down

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moving the fpu code causes exceptions raised by it to be trapped
neatly instead of causing a triple fault, before the IDT is initialized.
This commit is contained in:
Ben Gras 2010-04-28 13:25:29 +00:00
parent f9317dc039
commit c37401f23f
1 changed files with 5 additions and 1 deletions
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6
kernel/arch/i386/arch_system.c
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@ -136,7 +136,7 @@ PRIVATE void tss_init(struct tss_s * tss, void * kernel_stack,
*((reg_t *)(tss->sp0 + 1 * sizeof(reg_t))) = cpu;
}
PUBLIC void arch_init(void)
PRIVATE void fpu_init(void)
{
unsigned short cw, sw;
@ -184,7 +184,10 @@ PUBLIC void arch_init(void)
osfxsr_feature = 0;
return;
}
}
PUBLIC void arch_init(void)
{
#ifdef CONFIG_APIC
/*
* this is setting kernel segments to cover most of the phys memory. The
@ -208,6 +211,7 @@ PUBLIC void arch_init(void)
}
#endif
fpu_init();
}
#define COM1_BASE 0x3F8