Differential D13797 Diff 38054 sys/amd64/include/pmap.h

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sys/amd64/include/pmap.h

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	#define pte_load_clear(ptep) atomic_swap_long(ptep, 0)			#define pte_load_clear(ptep) atomic_swap_long(ptep, 0)
	#define pte_store(ptep, pte) do { \			#define pte_store(ptep, pte) do { \
	(u_long )(ptep) = (u_long)(pte); \			(u_long )(ptep) = (u_long)(pte); \
	} while (0)			} while (0)
	#define pte_clear(ptep) pte_store(ptep, 0)			#define pte_clear(ptep) pte_store(ptep, 0)

	#define pde_store(pdep, pde) pte_store(pdep, pde)			#define pde_store(pdep, pde) pte_store(pdep, pde)

	extern pt_entry_t pg_nx;			extern pt_entry_t pg_nx, pg_g;
				markjUnsubmitted Not Done Inline Actions It seems this change is not needed. markj: It seems this change is not needed.

	#endif /* _KERNEL */			#endif /* _KERNEL */

	/*			/*
	* Pmap stuff			* Pmap stuff
	*/			*/
	struct pv_entry;			struct pv_entry;
	struct pv_chunk;			struct pv_chunk;
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	/*			/*
	* The kernel virtual address (KVA) of the level 4 page table page is always			* The kernel virtual address (KVA) of the level 4 page table page is always
	* within the direct map (DMAP) region.			* within the direct map (DMAP) region.
	*/			*/
	struct pmap {			struct pmap {
	struct mtx pm_mtx;			struct mtx pm_mtx;
	pml4_entry_t pm_pml4; / KVA of level 4 page table */			pml4_entry_t pm_pml4; / KVA of level 4 page table */
				pml4_entry_t pm_pml4u; / KVA of user l4 page table */
	uint64_t pm_cr3;			uint64_t pm_cr3;
				uint64_t pm_ucr3;
	TAILQ_HEAD(,pv_chunk) pm_pvchunk; /* list of mappings in pmap */			TAILQ_HEAD(,pv_chunk) pm_pvchunk; /* list of mappings in pmap */
	cpuset_t pm_active; /* active on cpus */			cpuset_t pm_active; /* active on cpus */
	enum pmap_type pm_type; /* regular or nested tables */			enum pmap_type pm_type; /* regular or nested tables */
	struct pmap_statistics pm_stats; /* pmap statistics */			struct pmap_statistics pm_stats; /* pmap statistics */
	struct vm_radix pm_root; /* spare page table pages */			struct vm_radix pm_root; /* spare page table pages */
	long pm_eptgen; /* EPT pmap generation id */			long pm_eptgen; /* EPT pmap generation id */
	int pm_flags;			int pm_flags;
	struct pmap_pcids pm_pcids[MAXCPU];			struct pmap_pcids pm_pcids[MAXCPU];
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	void pmap_invalidate_all(pmap_t);			void pmap_invalidate_all(pmap_t);
	void pmap_invalidate_cache(void);			void pmap_invalidate_cache(void);
	void pmap_invalidate_cache_pages(vm_page_t *pages, int count);			void pmap_invalidate_cache_pages(vm_page_t *pages, int count);
	void pmap_invalidate_cache_range(vm_offset_t sva, vm_offset_t eva,			void pmap_invalidate_cache_range(vm_offset_t sva, vm_offset_t eva,
	boolean_t force);			boolean_t force);
	void pmap_get_mapping(pmap_t pmap, vm_offset_t va, uint64_t ptr, int num);			void pmap_get_mapping(pmap_t pmap, vm_offset_t va, uint64_t ptr, int num);
	boolean_t pmap_map_io_transient(vm_page_t , vm_offset_t , int, boolean_t);			boolean_t pmap_map_io_transient(vm_page_t , vm_offset_t , int, boolean_t);
	void pmap_unmap_io_transient(vm_page_t , vm_offset_t , int, boolean_t);			void pmap_unmap_io_transient(vm_page_t , vm_offset_t , int, boolean_t);
				void pmap_pti_add_kva(vm_offset_t sva, vm_offset_t eva, bool exec);
				void pmap_pti_remove_kva(vm_offset_t sva, vm_offset_t eva);
	#endif /* _KERNEL */			#endif /* _KERNEL */

	/* Return various clipped indexes for a given VA */			/* Return various clipped indexes for a given VA */
	static __inline vm_pindex_t			static __inline vm_pindex_t
	pmap_pte_index(vm_offset_t va)			pmap_pte_index(vm_offset_t va)
	{			{

	return ((va >> PAGE_SHIFT) & ((1ul << NPTEPGSHIFT) - 1));			return ((va >> PAGE_SHIFT) & ((1ul << NPTEPGSHIFT) - 1));
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