x86/idtentry: Provide IDTENTRY_RAW (0dc6cdc2) · Commits · 戴 / test

arch/x86/include/asm/idtentry.h

+31 −0

Original line number	Diff line number	Diff line
		@@ -104,6 +104,34 @@ __visible noinstr void func(struct pt_regs *regs, \
		static __always_inline void __##func(struct pt_regs *regs, \
		unsigned long error_code)

		/**
		* DECLARE_IDTENTRY_RAW - Declare functions for raw IDT entry points
		* No error code pushed by hardware
		* @vector: Vector number (ignored for C)
		* @func: Function name of the entry point
		*
		* Maps to DECLARE_IDTENTRY().
		*/
		#define DECLARE_IDTENTRY_RAW(vector, func) \
		DECLARE_IDTENTRY(vector, func)

		/**
		* DEFINE_IDTENTRY_RAW - Emit code for raw IDT entry points
		* @func: Function name of the entry point
		*
		* @func is called from ASM entry code with interrupts disabled.
		*
		* The macro is written so it acts as function definition. Append the
		* body with a pair of curly brackets.
		*
		* Contrary to DEFINE_IDTENTRY() this does not invoke the
		* idtentry_enter/exit() helpers before and after the body invocation. This
		* needs to be done in the body itself if applicable. Use if extra work
		* is required before the enter/exit() helpers are invoked.
		*/
		#define DEFINE_IDTENTRY_RAW(func) \
		__visible noinstr void func(struct pt_regs *regs)

		#else /* !__ASSEMBLY__ */

		/*
		@@ -118,6 +146,9 @@ static __always_inline void __##func(struct pt_regs *regs, \
		/* Special case for 32bit IRET 'trap'. Do not emit ASM code */
		#define DECLARE_IDTENTRY_SW(vector, func)

		#define DECLARE_IDTENTRY_RAW(vector, func) \
		DECLARE_IDTENTRY(vector, func)

		#endif /* __ASSEMBLY__ */

		/*