[Xen-devel] Re: [RFC, PATCH 10/24] i386 Vmi descriptor changes

[Andi Kleen <ak@xxxxxxx>]

> -#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)


The ugly piece of code doesn't do anything priviledged. So why do you want
to move it?

-Andi


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