build: Release v38.0

Signed-off-by: Bo Chen <[email protected]>

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cloud-hypervisor"
-version = "37.0.0"
+version = "38.0.0"
 authors = ["The Cloud Hypervisor Authors"]
 edition = "2021"
 default-run = "cloud-hypervisor"

release-notes.md

@@ -318,6 +318,75 @@
     - [Unit testing](#unit-testing)
     - [Integration tests parallelization](#integration-tests-parallelization)
 
+# v38.0
+
+This release has been tracked in our [roadmap
+project](https://github.com/orgs/cloud-hypervisor/projects/6) as iteration
+v38.0. The following user visible changes have been made:
+
+### Group Rate Limiter on Block Devices
+
+Users now can throttle a group of block devices with the new
+`--rate-limiter-group` option. Details can be found from the [I/O
+Throttling documentation](docs/io_throttling.md)
+
+### Thread Pinning Support for Block Device Virt-queue
+
+Users now have the option to pin virt-queue threads for block devices
+to specific host cpus.
+
+### Optimized Boot Time with Parallel Memory Prefault
+
+The boot time with `prefault` option enabled is optimized via parallel
+memory prefault.
+
+### New 'debug-console' Device
+
+A 'debug-console' device is added to provide a user-configurable debug
+port for logging guest information. Details can be found from the [Debug
+IO Ports documentation](docs/debug-port.md).
+
+### Improved VFIO Device Support
+
+all non-emulated MMIO regions of VFIO devices are NOW mapped to the VFIO
+container, allowing PCIe P2P between all VFIO devices on the same
+VM. This is required for a wide variety of multi-GPU workloads involving
+GPUDirect P2P (DMA between two GPUs), GPUDirect RDMA (DMA between a GPU
+and an IB device).
+
+### Extended CPU Affinity Support
+
+Users now can set the vcpu affinity ot a host CPU with index larger
+than 255.
+
+### Notable Bug Fixes
+
+* Enable HTT flag to avoid crashing cpu topology enumeration software
+such as hwloc in the guest (#6146)
+* Fix several security advisories from dependent crate (#6134, #6141)
+* Handle non-power-of-two CPU topology properly (#6062)
+* Various bug fixes around `virtio-vsock`(#6080, #6091, #6095)
+* Enable nested virtualization on AMD if supported (#6106)
+
+### Contributors
+
+Many thanks to everyone who has contributed to our release:
+* Alyssa Ross <[email protected]>
+* Bo Chen <[email protected]>
+* Daniel Farina <[email protected]>
+* Jinank Jain <[email protected]>
+* Muminul Islam <[email protected]>
+* Peteris Rudzusiks <[email protected]>
+* Philipp Schuster <[email protected]>
+* Ravi kumar Veeramally <[email protected]>
+* Rob Bradford <[email protected]>
+* Ruslan Mstoi <[email protected]>
+* Sean Banko <[email protected]>
+* Thomas Barrett <[email protected]>
+* Wei Liu <[email protected]>
+* Yi Wang <[email protected]>
+* acarp <[email protected]>
+
 # v37.0
 
 This release has been tracked in our [roadmap

vm-migration/src/lib.rs

@@ -12,7 +12,7 @@ use versionize::{VersionMap, Versionize};
 pub mod protocol;
 
 /// Global VMM version for versioning
-const MAJOR_VERSION: u16 = 37;
+const MAJOR_VERSION: u16 = 38;
 const MINOR_VERSION: u16 = 0;
 const VMM_VERSION: u16 = MAJOR_VERSION << 12 | MINOR_VERSION & 0b1111;