Class for creating short temporal mappings for separate pages. More...

#include <vm_mm.h>

Collaboration diagram for vm::QuickMap:

Public Types
enum	{ MAX_PAGES = 64 }
Public Member Functions
	QuickMap (Vaddr mapBase, size_t numPages, void **mapPte)
	Construct quick map helper object.
Vaddr	Map (Paddr pa, long flags=LAT_EF_PRESENT\|LAT_EF_WRITE)
	Map physical address.
void	Unmap (Vaddr va)
	Unmap page which was previously mapped by Map method.

Detailed Description

Class for creating short temporal mappings for separate pages.

Member Enumeration Documentation

anonymous enum

Enumerator:

MAX_PAGES

Maximal number of pages which can be used for quick map.

Construct quick map helper object.

Parameters:

mapBase	Virtual address of the first page in the VAS region reserved for quick maps. The region must be a continuous range of one or more pages.
numPages	Number of pages available in provided VAS region.
mapPte	Array of PTEs which correspond to virtual addresses provided in mapBase.

Vaddr QuickMap::Map	(	Paddr	pa,
		long	flags = `LAT_EF_PRESENT \| LAT_EF_WRITE`
	)

Map physical address.

Parameters:

pa	Physical address to map. One page is mapped.
flags	Mapping flags for the entry, see LatEntryFlags.

void QuickMap::Unmap ( Vaddr va )

Unmap page which was previously mapped by Map method.

Parameters:

va	Virtual address returned by Map method.

The documentation for this class was generated from the following files: