pr_cont("OK\n");
}
-/*
- * Most 386 processors have a bug where a POPAD can lock the
- * machine even from user space.
- */
-
-static void __init check_popad(void)
-{
-#ifndef CONFIG_X86_POPAD_OK
- int res, inp = (int) &res;
-
- pr_info("Checking for popad bug... ");
- __asm__ __volatile__(
- "movl $12345678,%%eax; movl $0,%%edi; pusha; popa; movl (%%edx,%%edi),%%ecx "
- : "=&a" (res)
- : "d" (inp)
- : "ecx", "edi");
- /*
- * If this fails, it means that any user program may lock the
- * CPU hard. Too bad.
- */
- if (res != 12345678)
- pr_cont("Buggy\n");
- else
- pr_cont("OK\n");
-#endif
-}
-
/*
* Check whether we are able to run this kernel safely on SMP.
*
#endif
check_config();
check_hlt();
- check_popad();
init_utsname()->machine[1] =
'0' + (boot_cpu_data.x86 > 6 ? 6 : boot_cpu_data.x86);
alternative_instructions();