diff options
Diffstat (limited to 'arch/i386/kernel/traps.c')
| -rw-r--r-- | arch/i386/kernel/traps.c | 24 |
1 files changed, 5 insertions, 19 deletions
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index bdf949c30c7..00d643f3de4 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -1165,20 +1165,6 @@ void __init trap_init_f00f_bug(void) } #endif -#define _set_gate(gate_addr,type,dpl,addr,seg) \ -do { \ - int __d0, __d1; \ - __asm__ __volatile__ ("movw %%dx,%%ax\n\t" \ - "movw %4,%%dx\n\t" \ - "movl %%eax,%0\n\t" \ - "movl %%edx,%1" \ - :"=m" (*((long *) (gate_addr))), \ - "=m" (*(1+(long *) (gate_addr))), "=&a" (__d0), "=&d" (__d1) \ - :"i" ((short) (0x8000+(dpl<<13)+(type<<8))), \ - "3" ((char *) (addr)),"2" ((seg) << 16)); \ -} while (0) - - /* * This needs to use 'idt_table' rather than 'idt', and * thus use the _nonmapped_ version of the IDT, as the @@ -1187,7 +1173,7 @@ do { \ */ void set_intr_gate(unsigned int n, void *addr) { - _set_gate(idt_table+n,14,0,addr,__KERNEL_CS); + _set_gate(n, DESCTYPE_INT, addr, __KERNEL_CS); } /* @@ -1195,22 +1181,22 @@ void set_intr_gate(unsigned int n, void *addr) */ static inline void set_system_intr_gate(unsigned int n, void *addr) { - _set_gate(idt_table+n, 14, 3, addr, __KERNEL_CS); + _set_gate(n, DESCTYPE_INT | DESCTYPE_DPL3, addr, __KERNEL_CS); } static void __init set_trap_gate(unsigned int n, void *addr) { - _set_gate(idt_table+n,15,0,addr,__KERNEL_CS); + _set_gate(n, DESCTYPE_TRAP, addr, __KERNEL_CS); } static void __init set_system_gate(unsigned int n, void *addr) { - _set_gate(idt_table+n,15,3,addr,__KERNEL_CS); + _set_gate(n, DESCTYPE_TRAP | DESCTYPE_DPL3, addr, __KERNEL_CS); } static void __init set_task_gate(unsigned int n, unsigned int gdt_entry) { - _set_gate(idt_table+n,5,0,0,(gdt_entry<<3)); + _set_gate(n, DESCTYPE_TASK, (void *)0, (gdt_entry<<3)); } |