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Diffstat (limited to 'i386/util/idt.h')
-rw-r--r-- | i386/util/idt.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/i386/util/idt.h b/i386/util/idt.h new file mode 100644 index 0000000..a94019f --- /dev/null +++ b/i386/util/idt.h @@ -0,0 +1,43 @@ +/* + * Copyright (c) 1995-1994 The University of Utah and + * the Computer Systems Laboratory at the University of Utah (CSL). + * All rights reserved. + * + * Permission to use, copy, modify and distribute this software is hereby + * granted provided that (1) source code retains these copyright, permission, + * and disclaimer notices, and (2) redistributions including binaries + * reproduce the notices in supporting documentation, and (3) all advertising + * materials mentioning features or use of this software display the following + * acknowledgement: ``This product includes software developed by the + * Computer Systems Laboratory at the University of Utah.'' + * + * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS + * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF + * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * CSL requests users of this software to return to csl-dist@cs.utah.edu any + * improvements that they make and grant CSL redistribution rights. + * + * Author: Bryan Ford, University of Utah CSL + */ +#ifndef _I386_IDT_ +#define _I386_IDT_ + +#include <mach/vm_param.h> +#include <mach/machine/seg.h> + +#include "irq.h" + +/* On a standard PC, we only need 16 interrupt vectors, + because that's all the PIC hardware supports. */ +#ifndef IDTSZ +#define IDTSZ (IDT_IRQ_BASE+IRQ_COUNT) +#endif + + +/* Fill a gate in a CPU's IDT. */ +#define fill_idt_gate(cpu, int_num, entry, selector, access) \ + fill_gate(&(cpu)->tables.idt[int_num], \ + entry, selector, access, 0) + +#endif _I386_IDT_ |