kernel/vm/vm.cpp

663 /*!	Cuts a piece out of an area. If the given cut range covers the complete
665 	resized accordingly. If the range covers some part in the middle of the
669 	The caller must ensure that no part of the given range is wired.
876 				panic("failed to restore cache range: %s",
955 /*!	Deletes or cuts all areas in the given address range.
957 	The caller must ensure that no part of the given range is wired.
973 					"unmap range of kernel area %" B_PRId32 " (%s)\n",
1047 	that no part of the specified address range (base \c *_virtualAddress, size
1219 	specified range and waits, if so.
1230 	\param base The base address of the range to check.
1231 	\param size The size of the address range to check.
1262 	with the specified range and waits, if so.
1265 	- All areas intersecting with the range are checked (respectively all until
1266 	  one is found that contains a wired range intersecting with the given
1267 	  range).
1317 	Sets protection for the given address range to the protection specified.
1331 	// check address range
1354 		panic("protect range not fully within supplied area");
1648 	// CREATE_AREA_UNMAP_ADDRESS_RANGE were specified, ensure the address range
2053 	// CREATE_AREA_UNMAP_ADDRESS_RANGE were specified, ensure the address range
2248 	// Lock the address space and, if the specified address range shall be
3977 	// free all physical pages in the specified range
4032 			TRACE(("free boot range: get rid of %p - %p\n", (void*)lastEnd,
4048 		TRACE(("free boot range: also remove %p - %p\n", (void*)lastEnd,
4152 			dprintf("reserve_boot_loader_ranges(): Skipping range: %p, %"
4170 	// find a slot in the virtual allocation addr range
4250 			// see if the next page will collide with the next allocated range
4269 			// see if the next page will collide with the next allocated range
5522 /*!	Copies a range of memory directly from/to a page that might not be mapped
5528 	The memory range starting at \a unsafeMemory with a length of \a size bytes
5536 	\param unsafeMemory The start of the unsafe memory range to be copied
5609 /** Validate that a memory range is either fully in kernel space, or fully in
5620 	// Validate that the address range does not cross the kernel/user boundary.
5710 	info->range.SetTo(pageAddress, B_PAGE_SIZE, writable, false);
5746 	// mark the area range wired
5747 	area->Wire(&info->range);
5783 			area->Unwire(&info->range);
5807 	VMArea* area = info->range.area;
5823 	// remove the wired range from the range
5824 	area->Unwire(&info->range);
5830 /*!	Wires down the given address range in the specified team's address space.
5835 	  address range,
5836 	- makes sure all pages in the given address range are mapped with the
5840 	of the specified address range is not covered by areas, when the concerned
5849 	\param address The start of the address range to be wired.
5850 	\param numBytes The size of the address range to be wired.
5852 		requests that the range must be wired writable ("read from device
5905 		// allocate the wired range (do that before locking the cache to avoid
5907 		VMAreaWiredRange* range = new(malloc_flags(mallocFlags))
5909 		if (range == NULL) {
5917 		// mark the area range wired
5918 		area->Wire(range);
5979 				area->Unwire(range);
5981 				range->~VMAreaWiredRange();
5982 				free_etc(range, mallocFlags);
6010 /*!	Unwires an address range previously wired with lock_memory_etc().
6074 			// unwire the range (to avoid deadlocks we delete the range after
6077 			VMAreaWiredRange* range = area->Unwire(areaStart,
6080 			if (range != NULL) {
6081 				range->~VMAreaWiredRange();
6082 				free_etc(range, mallocFlags);
6116 		// All pages are unwired. Remove the area's wired range as well (to
6117 		// avoid deadlocks we delete the range after unlocking the cache).
6118 		VMAreaWiredRange* range = area->Unwire(areaStart,
6123 		if (range != NULL) {
6124 			range->~VMAreaWiredRange();
6125 			free_etc(range, mallocFlags);
6148 	Returns \c B_OK when the complete range could be translated or
6780 	// Write lock the address space and ensure the address range is not wired.
6797 	// check address range
6827 		// First round: Check whether the whole range is covered by areas and we
6997 	// iterate through the range and sync all concerned areas
7133 	// check address range