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Annotation of qemu/roms/ipxe/src/arch/i386/include/biosint.h, revision 1.1.1.1

1.1       root        1: #ifndef BIOSINT_H
                      2: #define BIOSINT_H
                      3: 
                      4: /**
                      5:  * @file BIOS interrupts
                      6:  *
                      7:  */
                      8: 
                      9: FILE_LICENCE ( GPL2_OR_LATER );
                     10: 
                     11: #include <realmode.h>
                     12: 
                     13: struct segoff;
                     14: 
                     15: /**
                     16:  * Hooked interrupt count
                     17:  *
                     18:  * At exit, after unhooking all possible interrupts, this counter
                     19:  * should be examined.  If it is non-zero, it means that we failed to
                     20:  * unhook at least one interrupt vector, and so must not free up the
                     21:  * memory we are using.  (Note that this also implies that we should
                     22:  * re-hook INT 15 in order to hide ourselves from the memory map).
                     23:  */
                     24: extern uint16_t __text16 ( hooked_bios_interrupts );
                     25: #define hooked_bios_interrupts __use_text16 ( hooked_bios_interrupts )
                     26: 
                     27: extern void hook_bios_interrupt ( unsigned int interrupt, unsigned int handler,
                     28:                                  struct segoff *chain_vector );
                     29: extern int unhook_bios_interrupt ( unsigned int interrupt,
                     30:                                   unsigned int handler,
                     31:                                   struct segoff *chain_vector );
                     32: 
                     33: #endif /* BIOSINT_H */

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