[−][src]Module sunrise_bootstrap::paging

Paging on i386

Modules

entry	i386 page table entry
table	i386 page table / directory

ActivePageTables	The page tables set currently in use.
EntryFlags	The flags of a table entry
InactivePageTables	A set of PageTables that are not the ones currently in use. We can't use recursive mapping to modify them, so instead we have to temporarily map the directory and tables to make changes to them.
KernelLand	The virtual memory belonging to kernel.
PagingOffPageSet	Used at startup when paging is off to create and initialized the first page tables
UserLand	The virtual memory belonging to user.

The type of a Virtual Memory mapping. Can either be Present, in which case it is linked to a Frame and some flags, or Guard.

ENTRY_COUNT
PAGE_SIZE	The size of a single page.

Currently active page tables.

PageTablesSet
VirtualSpaceLand	A trait describing the splitting of virtual memory between Kernel and User. Implemented by UserLand and KernelLand

enable_paging ^⚠
flush_tlb	Flush the Translation Lookaside Buffer [https://wiki.osdev.org/TLB]
get_page	Creates a mapping in the page tables with the given flags. Allocates the pointed page and chooses the virtual address.
is_paging_on	Check if the paging is currently active.
map_bootstrap ^⚠	Creates a set of page tables identity mapping the Bootstrap.
swap_cr3	Changes the content of the cr3 register, and returns the value before the change was made