This release includes a major change to the vm-memory API in order …

Changed

This release includes a major change to the vm-memory API in order to support memory access permissions. The previous GuestMemory trait is now renamed to GuestMemoryBackend, and GuestMemory has a completely new definition. However, common interfaces such as GuestAddressSpace and Bytes remain on GuestMemory; therefore, all callers that just use the Bytes interface remain completely unchanged.

• [#362] Rename GuestMemory to GuestMemoryBackend, IoMemory to GuestMemory

Added

• [#327] I/O virtual memory support via IoMemory, IommuMemory, and Iommu/Iotlb

Fixed

• [#361] clippy: allow mut_from_ref

This release re-packages the code of vm-memory 0.18.0 while preserving
API compatibility with 0.17.1. All the actual implementation comes from
version 0.18.0, which this crate re-exports with GuestMemoryBackend
changed back to GuestMemory.

Changelog

[v0.17.1]

No visible changes. Needed to fix docs.rs build.

Changelog

[v0.17.0]

Added

• [#311] Allow compiling without the ReadVolatile and WriteVolatile implementations
• [#312] GuestRegionContainer, a generic container of GuestMemoryRegions, generalizing GuestMemoryMmap (which
  is now a type alias for GuestRegionContainer<GuestRegionMmap>).
• [#338] Make GuestMemoryAtomic always implement Clone.
• [#338] Make GuestAddressSpace a subtrait of Clone.
• [#339] Add GuestMemory::get_slices()

Changed

• [#307] Move read_volatile_from, read_exact_volatile_from,
  write_volatile_to and write_all_volatile_to functions from the GuestMemory trait to the Bytes trait.
• [#312]: Give GuestMemory::find_region and GuestMemory::num_regions
  a default implementation, based on linear search.
• [#312]: Provide a marker trait, GuestMemoryRegionBytes, which enables a default implementation of Bytes<MemoryRegionAddress>
  for a GuestMemoryRegion if implemented.
• [#312]: Adjust error types returned from GuestMemoryMmap::from_ranges[_with_files]
  and GuestRegionMmap::from_range to be separate from the error type returned by GuestRegionCollection functions.
  Change return type of GuestRegionMmap::new from Result to Option.
• [#324] GuestMemoryRegion::bitmap() now returns a BitmapSlice. Accessing the full bitmap is now possible only if the type of the memory region is know, for example with MmapRegion::bitmap().
• [#339] Implement Bytes::load() and Bytes::store() with get_slices() instead of to_region_addr()

Removed

• [#307] Remove deprecated functions Bytes::read_from, Bytes::read_exact_from,
  Bytes::write_to, Bytes::write_all_to, GuestMemory::as_slice, GuestMemory::as_slice_mut, GuestMemory::with_regions,
  GuestMemory::with_regions_mut, GuestMemory::map_and_fold, VolatileSlice::as_ptr, VolatileRef::as_ptr, and
  VolatileArrayRef::as_ptr.
• [#320] Drop check_file_offset check when using MmapRegionBuilder.
  The mmap(2) syscall itself already validates that offset and length are valid, and trying to replicate this check
  in userspace ended up being imperfect.

Fixed

• [#339] Fix Bytes::read() and Bytes::write() not to ignore try_access()'s count parameter

Deprecated

• [#349] Deprecate GuestMemory::try_access(). Use GuestMemory::get_slices() instead.

Changelog

[v0.16.2]

• [#328] Support vmm-sys-util 0.14.0

Changelog

[v0.16.1]

Added

• [#304] Implement ReadVolatile and WriteVolatile for TcpStream

Changelog

Upcoming version

[v0.16.0]

Added

• [#287] Support for RISC-V 64-bit platform.
• [#299] atomic_bitmap: support enlarging the bitmap.

Changed

• [#278 Remove GuestMemoryIterator trait, and instead have GuestMemory::iter() return impl Iterator.

Changelog

[v0.15.0]

Added

• [#270] atomic_bitmap: add capability to reset bits range
• [#285] Annotated modules in lib.rs to indicate their feature
  dependencies such that it is reflected in the docs, enhancing documentation clarity for users.

Changed

• [#275] Fail builds on non 64-bit platforms.

Fixed

• [#279] Remove restriction from read_volatile_from and write_volatile_into
  that made it copy data it chunks of 4096.

Changelog

[v0.14.1]

Fixed

• [#279] Remove restriction from read_volatile_from and write_volatile_into that made it copy data it chunks of 4096.

Changelog

[v0.14.0]

Added

• [#266] Derive Debug for several types that were missing it.

Changed

• [#274] Drop Default as requirement for ByteValued.