/* * Copyright (C) 1994 Linus Torvalds * Copyright (C) 2000 SuSE */ #include <linux/kernel.h> #include <linux/init.h> #include <asm/alternative.h> #include <asm/bugs.h> #include <asm/processor.h> #include <asm/mtrr.h> #include <asm/cacheflush.h> void __init check_bugs(void) { identify_boot_cpu(); #if !defined(CONFIG_SMP) printk("CPU: "); print_cpu_info(&boot_cpu_data); #endif alternative_instructions(); /* * Make sure the first 2MB area is not mapped by huge pages * There are typically fixed size MTRRs in there and overlapping * MTRRs into large pages causes slow downs. * * Right now we don't do that with gbpages because there seems * very little benefit for that case. */ if (!direct_gbpages) set_memory_4k((unsigned long)__va(0), 1); }