VOID
HookInterrupt(UCHAR iVec, void (*InterruptHandler)( void ))
{
IDT Idt;
INT_VECTOR Vec;
ULONG i;
LoadIDT( &Idt );
LoadINTVector(
&Idt,
iVec,
&Vec);
KdPrint( ( "HookInterrupt: Vector -- %X, 0x%p, 0x%p\n", iVec, VEC_OFFSET_TO_ADDR( Vec ), InterruptHandler));
ADDR_TO_VEC_OFFSET( Vec, (ULONG64) InterruptHandler);
//Vec.wSelector = selector;
SaveINTVector(
&Idt,
iVec,
&Vec );
}
VOID
BackupInterrupt(UCHAR iVec, OUT PINT_VECTOR Vec)
{
IDT Idt;
ULONG i;
LoadIDT( &Idt );
LoadINTVector(
&Idt,
iVec,
Vec);
}
VOID
RestoreInterrupt(UCHAR iVec, IN PINT_VECTOR Vec)
{
IDT Idt;
ULONG i;
LoadIDT( &Idt );
SaveINTVector(
&Idt,
iVec,
Vec);
}
/** Kernel (real) entry point **/
void kmain(struct mb_partial_info *mbi)
{
printk("RAM detected : %uk (lower), %uk (upper)\n", mbi->low_mem, mbi->high_mem);
printk("Command line got: %s \n", mbi->cmdline);
printk ("Initialize GDT ... ");
InitGDT();
asm(" movw $0x18, %ax \n \
movw %ax, %ss \n \
movl $0x1FFF0, %esp");
OkMsg();
LoadIDT();
printk ("IDT loaded éè\n");
InitPIC();
sti;
while(1) { }
}
VOID
CopyInterrupt(UCHAR fromVec, UCHAR toVec)
{
IDT Idt;
INT_VECTOR Vec;
ULONG i;
LoadIDT( &Idt );
LoadINTVector(
&Idt,
fromVec,
&Vec);
KdPrint( ( "CopyInterrupt: Vector, 0x%p\n", VEC_OFFSET_TO_ADDR( Vec )));
SaveINTVector(
&Idt,
toVec,
&Vec );
}