Changelog

0.3.0

Breaking changes

• Made Translation trait responsible for allocating page tables. This should help make it possible to use more complex mapping schemes, and to construct page tables in a different context to where they are used.
• Renamed AddressRangeError to MapError, which is now an enum with three variants and implements Display.
• From<*const T> and From<*mut T> are no longer implemented for VirtualAddress.
• Added support for using TTBR1 as well as TTBR0; this changes various constructors to take an extra parameter.

New features

• Made alloc dependency optional via a feature flag.
• Added support for linear mappings with new LinearMap.
• Implemented subtraction of usize from address types.

Bugfixes

• Fixed memory leak introduced in 0.2.0: dropping a page table will now actually free its memory.

0.2.1

New features

• Implemented Debug and Display for MemoryRegion.
• Implemented From<Range<VirtualAddress>> for MemoryRegion.
• Implemented arithmetic operations for PhysicalAddress and VirtualAddress.

0.2.0

Breaking changes

• Added bounds check to IdMap::map_range; it will now return an error if you attempt to map a virtual address outside the range of the page table given its configured root level.

New features

• Implemented Debug for PhysicalAddress and VirtualAddress.
• Validate that chosen root level is supported.

Bugfixes

• Fixed bug in Display and Drop implementation for RootTable that would result in a crash for any pagetable with non-zero mappings.
• Fixed Display implementation for PhysicalAddress and VirtualAddress to use correct number of digits.

0.1.0

Initial release.