Differential D2428 Diff 5155 sys/amd64/include/vmm_instruction_emul.h

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sys/amd64/include/vmm_instruction_emul.h

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	#ifdef _KERNEL			#ifdef _KERNEL
	/*			/*
	* APIs to fetch and decode the instruction from nested page fault handler.			* APIs to fetch and decode the instruction from nested page fault handler.
	*			*
	* 'vie' must be initialized before calling 'vmm_fetch_instruction()'			* 'vie' must be initialized before calling 'vmm_fetch_instruction()'
	*/			*/
	int vmm_fetch_instruction(struct vm *vm, int cpuid,			int vmm_fetch_instruction(struct vm *vm, int cpuid,
	struct vm_guest_paging *guest_paging,			struct vm_guest_paging *guest_paging,
	uint64_t rip, int inst_length, struct vie *vie);			uint64_t rip, int inst_length, struct vie *vie,
				int *fault);

	/*			/*
	* Translate the guest linear address 'gla' to a guest physical address.			* Translate the guest linear address 'gla' to a guest physical address.
	*			*
	* Returns 0 on success and '*gpa' contains the result of the translation.			* retval guest_fault Interpretation
	* Returns 1 if an exception was injected into the guest.			* 0 0 'gpa' contains result of the translation
	* Returns -1 otherwise.			* 0 1 An exception was injected into the guest
				* EFAULT N/A An unrecoverable hypervisor error occurred
	*/			*/
	int vm_gla2gpa(struct vm vm, int vcpuid, struct vm_guest_paging paging,			int vm_gla2gpa(struct vm vm, int vcpuid, struct vm_guest_paging paging,
	uint64_t gla, int prot, uint64_t *gpa);			uint64_t gla, int prot, uint64_t gpa, int guest_fault);

	void vie_init(struct vie vie, const char inst_bytes, int inst_length);			void vie_init(struct vie vie, const char inst_bytes, int inst_length);

	/*			/*
	* Decode the instruction fetched into 'vie' so it can be emulated.			* Decode the instruction fetched into 'vie' so it can be emulated.
	*			*
	* 'gla' is the guest linear address provided by the hardware assist			* 'gla' is the guest linear address provided by the hardware assist
	* that caused the nested page table fault. It is used to verify that			* that caused the nested page table fault. It is used to verify that
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