bugs.h
上传用户:jlfgdled
上传日期:2013-04-10
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文件大小:1k
- /*
- * include/asm-x86_64/bugs.h
- *
- * Copyright (C) 1994 Linus Torvalds
- * Copyright (C) 2000 SuSE
- *
- * This is included by init/main.c to check for architecture-dependent bugs.
- *
- * Needs:
- * void check_bugs(void);
- */
- #include <linux/config.h>
- #include <asm/processor.h>
- #include <asm/i387.h>
- #include <asm/msr.h>
- #include <asm/pda.h>
- static inline void check_fpu(void)
- {
- extern void __bad_fxsave_alignment(void);
- if (offsetof(struct task_struct, thread.i387.fxsave) & 15)
- __bad_fxsave_alignment();
- /* This should not be here */
- set_in_cr4(X86_CR4_OSFXSR);
- set_in_cr4(X86_CR4_OSXMMEXCPT);
- }
- static void __init check_bugs(void)
- {
- identify_cpu(&boot_cpu_data);
- check_fpu();
- }