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69 the page's protection, whether the page has been referenced or modified and
74 interface is consistent across all platforms and hides the way page mappings
87 .Sh PAGE MANAGEMENT
100 The modified/referenced bits must be tracked on a per-page basis, as they
101 are not attributes of a mapping, but attributes of a page.
102 Therefore, even after all mappings for a given page have been removed, the
103 modified/referenced bits for that page must be preserved.
111 the page being modified or referenced again after the modified/referenced
134 function creates a managed mapping for physical page
148 The page mapped contains instructions that will be executed by the
159 information for the page being mapped, possibly avoiding redundant
187 the page being faulted in.
264 copy-on-write memory, and when paging out a page to remove all mappings
265 of a page.
268 function sets the permission for all mapping to page
273 references to a page are removed.
274 .Sh PHYSICAL PAGE-USAGE INFORMATION
290 functions read/set the modify bits on the specified physical page
296 functions read/set the reference bits on the specified physical page
310 .Sh PHYSICAL PAGE INITIALIZATION
315 .Fn pmap_zero_page "struct vm_page *page"
320 function copies the content of the physical page
322 to physical page
328 .Fa page
381 function can preallocate kernel page tables to a specified virtual address.