build: Release v21.0

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

Cargo.lock

@@ -148,7 +148,7 @@ dependencies = [
 
 [[package]]
 name = "cloud-hypervisor"
-version = "20.0.0"
+version = "21.0.0"
 dependencies = [
  "anyhow",
  "api_client",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cloud-hypervisor"
-version = "20.0.0"
+version = "21.0.0"
 authors = ["The Cloud Hypervisor Authors"]
 edition = "2018"
 default-run = "cloud-hypervisor"

release-notes.md

@@ -1,11 +1,18 @@
+- [v21.0](#v210)
+    - [Efficient Local Live Migration (for Live Upgrade)](#efficient-local-live-migration-for-live-upgrade)
+    - [Recommended Kernel is Now 5.15](#recommended-kernel-is-now-515)
+    - [Notable Bug fixes](#notable-bug-fixes)
+    - [Contributors](#contributors)
+- [v20.2](#v202)
+- [v20.1](#v201)
 - [v20.0](#v200)
     - [Multiple PCI segments support](#multiple-pci-segments-support)
     - [CPU pinning](#cpu-pinning)
     - [Improved VFIO support](#improved-vfio-support)
     - [Safer code](#safer-code)
     - [Extended documentation](#extended-documentation)
-    - [Notable bug fixes](#notable-bug-fixes)
+    - [Notable bug fixes](#notable-bug-fixes-1)
-    - [Contributors](#contributors)
+    - [Contributors](#contributors-1)
 - [v19.0](#v190)
     - [Improved PTY handling for serial and `virtio-console`](#improved-pty-handling-for-serial-and-virtio-console)
     - [PCI boot time optimisations](#pci-boot-time-optimisations)
@@ -13,8 +20,8 @@
     - [Live migration enhancements](#live-migration-enhancements)
     - [`virtio-mem` support with `vfio-user`](#virtio-mem-support-with-vfio-user)
     - [AArch64 for `virtio-iommu`](#aarch64-for-virtio-iommu)
-    - [Notable bug fixes](#notable-bug-fixes-1)
+    - [Notable bug fixes](#notable-bug-fixes-2)
-    - [Contributors](#contributors-1)
+    - [Contributors](#contributors-2)
 - [v18.0](#v180)
     - [Experimental User Device (`vfio-user`) support](#experimental-user-device-vfio-user-support)
     - [Migration support for `vhost-user` devices](#migration-support-for-vhost-user-devices)
@@ -24,23 +31,23 @@
     - [Live migration on MSHV hypervisor](#live-migration-on-mshv-hypervisor)
     - [AArch64 CPU topology support](#aarch64-cpu-topology-support)
     - [Power button support on AArch64](#power-button-support-on-aarch64)
-    - [Notable bug fixes](#notable-bug-fixes-2)
+    - [Notable bug fixes](#notable-bug-fixes-3)
-    - [Contributors](#contributors-2)
+    - [Contributors](#contributors-3)
 - [v17.0](#v170)
     - [ARM64 NUMA support using ACPI](#arm64-numa-support-using-acpi)
     - [`Seccomp` support for MSHV backend](#seccomp-support-for-mshv-backend)
     - [Hotplug of `macvtap` devices](#hotplug-of-macvtap-devices)
     - [Improved SGX support](#improved-sgx-support)
     - [Inflight tracking for `vhost-user` devices](#inflight-tracking-for-vhost-user-devices)
-    - [Notable bug fixes](#notable-bug-fixes-3)
+    - [Notable bug fixes](#notable-bug-fixes-4)
-    - [Contributors](#contributors-3)
+    - [Contributors](#contributors-4)
 - [v16.0](#v160)
     - [Improved live migration support](#improved-live-migration-support)
     - [Improved `vhost-user` support](#improved-vhost-user-support)
     - [ARM64 ACPI and UEFI support](#arm64-acpi-and-uefi-support)
-    - [Notable bug fixes](#notable-bug-fixes-4)
+    - [Notable bug fixes](#notable-bug-fixes-5)
     - [Removed functionality](#removed-functionality)
-    - [Contributors](#contributors-4)
+    - [Contributors](#contributors-5)
 - [v15.0](#v150)
     - [Version numbering and stability guarantees](#version-numbering-and-stability-guarantees)
     - [Network device rate limiting](#network-device-rate-limiting)
@@ -48,7 +55,7 @@
     - [`--api-socket` supports file descriptor parameter](#--api-socket-supports-file-descriptor-parameter)
     - [Bug fixes](#bug-fixes)
     - [Deprecations](#deprecations)
-    - [Contributors](#contributors-5)
+    - [Contributors](#contributors-6)
 - [v0.14.1](#v0141)
 - [v0.14.0](#v0140)
     - [Structured event monitoring](#structured-event-monitoring)
@@ -58,7 +65,7 @@
     - [PTY control for serial and `virtio-console`](#pty-control-for-serial-and-virtio-console)
     - [Block device rate limiting](#block-device-rate-limiting)
     - [Deprecations](#deprecations-1)
-    - [Contributors](#contributors-6)
+    - [Contributors](#contributors-7)
 - [v0.13.0](#v0130)
     - [Wider VFIO device support](#wider-vfio-device-support)
     - [Improved huge page support](#improved-huge-page-support)
@@ -66,13 +73,13 @@
     - [VHD disk image support](#vhd-disk-image-support)
     - [Improved Virtio device threading](#improved-virtio-device-threading)
     - [Clean shutdown support via synthetic power button](#clean-shutdown-support-via-synthetic-power-button)
-    - [Contributors](#contributors-7)
+    - [Contributors](#contributors-8)
 - [v0.12.0](#v0120)
     - [ARM64 enhancements](#arm64-enhancements)
     - [Removal of `vhost-user-net` and `vhost-user-block` self spawning](#removal-of-vhost-user-net-and-vhost-user-block-self-spawning)
     - [Migration of `vhost-user-fs` backend](#migration-of-vhost-user-fs-backend)
     - [Enhanced "info" API](#enhanced-info-api)
-    - [Contributors](#contributors-8)
+    - [Contributors](#contributors-9)
 - [v0.11.0](#v0110)
     - [`io_uring` support by default for `virtio-block`](#io_uring-support-by-default-for-virtio-block)
     - [Windows Guest Support](#windows-guest-support)
@@ -84,15 +91,15 @@
     - [Default Log Level Changed](#default-log-level-changed)
     - [New `--balloon` Parameter Added](#new---balloon-parameter-added)
     - [Experimental `virtio-watchdog` Support](#experimental-virtio-watchdog-support)
-    - [Notable Bug Fixes](#notable-bug-fixes-5)
+    - [Notable Bug Fixes](#notable-bug-fixes-6)
-    - [Contributors](#contributors-9)
+    - [Contributors](#contributors-10)
 - [v0.10.0](#v0100)
     - [`virtio-block` Support for Multiple Descriptors](#virtio-block-support-for-multiple-descriptors)
     - [Memory Zones](#memory-zones)
     - [`Seccomp` Sandbox Improvements](#seccomp-sandbox-improvements)
     - [Preliminary KVM HyperV Emulation Control](#preliminary-kvm-hyperv-emulation-control)
-    - [Notable Bug Fixes](#notable-bug-fixes-6)
+    - [Notable Bug Fixes](#notable-bug-fixes-7)
-    - [Contributors](#contributors-10)
+    - [Contributors](#contributors-11)
 - [v0.9.0](#v090)
     - [`io_uring` Based Block Device Support](#io_uring-based-block-device-support)
     - [Block and Network Device Statistics](#block-and-network-device-statistics)
@@ -105,17 +112,17 @@
     - [Enhancements to ARM64 Support](#enhancements-to-arm64-support)
     - [Intel SGX Support](#intel-sgx-support)
     - [`Seccomp` Sandbox Improvements](#seccomp-sandbox-improvements-1)
-    - [Notable Bug Fixes](#notable-bug-fixes-7)
+    - [Notable Bug Fixes](#notable-bug-fixes-8)
-    - [Contributors](#contributors-11)
+    - [Contributors](#contributors-12)
 - [v0.8.0](#v080)
     - [Experimental Snapshot and Restore Support](#experimental-snapshot-and-restore-support)
     - [Experimental ARM64 Support](#experimental-arm64-support)
     - [Support for Using 5-level Paging in Guests](#support-for-using-5-level-paging-in-guests)
     - [Virtio Device Interrupt Suppression for Network Devices](#virtio-device-interrupt-suppression-for-network-devices)
     - [`vhost_user_fs` Improvements](#vhost_user_fs-improvements)
-    - [Notable Bug Fixes](#notable-bug-fixes-8)
+    - [Notable Bug Fixes](#notable-bug-fixes-9)
     - [Command Line and API Changes](#command-line-and-api-changes)
-    - [Contributors](#contributors-12)
+    - [Contributors](#contributors-13)
 - [v0.7.0](#v070)
     - [Block, Network, Persistent Memory (PMEM), VirtioFS and Vsock hotplug](#block-network-persistent-memory-pmem-virtiofs-and-vsock-hotplug)
     - [Alternative `libc` Support](#alternative-libc-support)
@@ -125,14 +132,14 @@
     - [`Seccomp` Sandboxing](#seccomp-sandboxing)
     - [Updated Distribution Support](#updated-distribution-support)
     - [Command Line and API Changes](#command-line-and-api-changes-1)
-    - [Contributors](#contributors-13)
+    - [Contributors](#contributors-14)
 - [v0.6.0](#v060)
     - [Directly Assigned Devices Hotplug](#directly-assigned-devices-hotplug)
     - [Shared Filesystem Improvements](#shared-filesystem-improvements)
     - [Block and Networking IO Self Offloading](#block-and-networking-io-self-offloading)
     - [Command Line Interface](#command-line-interface)
     - [PVH Boot](#pvh-boot)
-    - [Contributors](#contributors-14)
+    - [Contributors](#contributors-15)
 - [v0.5.1](#v051)
 - [v0.5.0](#v050)
     - [Virtual Machine Dynamic Resizing](#virtual-machine-dynamic-resizing)
@@ -140,7 +147,7 @@
     - [New Interrupt Management Framework](#new-interrupt-management-framework)
     - [Development Tools](#development-tools)
     - [Kata Containers Integration](#kata-containers-integration)
-    - [Contributors](#contributors-15)
+    - [Contributors](#contributors-16)
 - [v0.4.0](#v040)
     - [Dynamic virtual CPUs addition](#dynamic-virtual-cpus-addition)
     - [Programmatic firmware tables generation](#programmatic-firmware-tables-generation)
@@ -149,7 +156,7 @@
     - [Userspace IOAPIC by default](#userspace-ioapic-by-default)
     - [PCI BAR reprogramming](#pci-bar-reprogramming)
     - [New `cloud-hypervisor` organization](#new-cloud-hypervisor-organization)
-    - [Contributors](#contributors-16)
+    - [Contributors](#contributors-17)
 - [v0.3.0](#v030)
     - [Block device offloading](#block-device-offloading)
     - [Network device backend](#network-device-backend)
@@ -176,6 +183,66 @@
     - [Unit testing](#unit-testing)
     - [Integration tests parallelization](#integration-tests-parallelization)
 
+# v21.0
+
+This release has been tracked through the [v21.0
+project](https://github.com/cloud-hypervisor/cloud-hypervisor/projects/24).
+
+### Efficient Local Live Migration (for Live Upgrade)
+
+In order to support fast live upgrade of the VMM an optimised path has been added in which the memory for the VM is not compared from source to destination. This is activated by passing `--local` to the `ch-remote send-migration` command. This means that the live upgrade can complete in the order of 50ms vs 3s. (#3566)
+
+### Recommended Kernel is Now 5.15
+
+Due to an issue in the `virtio-net` code in 5.14 the recommended Linux kernel is now 5.15. (#3530)
+
+### Notable Bug fixes
+
+* Multiple fixes were made to the OpenAPI YAML file to match the implementaion (#3555,#3562)
+* Avoid live migration deadlock when triggered during the kernel boot (#3585)
+* Support live migration within firmware (#3586)
+* Validate the `virtio-net` desciptor chain (#3548)
+* `direct=on` (`O_DIRECT`) can now be used with a guest that makes unaligned accesses (e.g. firmware) (#3587)
+
+### Contributors
+
+Many thanks to everyone who has contributed to our release:
+
+* Anatol Belski <anbelski@linux.microsoft.com>
+* Barret Rhoden <brho@google.com>
+* Bo Chen <chen.bo@intel.com>
+* Fabiano Fidêncio <fabiano.fidencio@intel.com>
+* Henry Wang <Henry.Wang@arm.com>
+* Liang Zhou <zhoul110@chinatelecom.cn>
+* Michael Zhao <michael.zhao@arm.com>
+* Muhammad Falak R Wani <falakreyaz@gmail.com>
+* Muminul Islam <muislam@microsoft.com>
+* Rob Bradford <robert.bradford@intel.com>
+* Sebastien Boeuf <sebastien.boeuf@intel.com>
+* Wei Liu <liuwe@microsoft.com>
+* Ziye Yang <ziye.yang@intel.com>
+ 
+# v20.2
+
+This is a bug fix release. The following issues have been addressed:
+
+* Don't error out when setting up the SIGWINCH handler (for console resize)
+  when this fails due to older kernel (#3456)
+* Seccomp rules were refined to remove syscalls that are now unused
+* Fix reboot on older host kernels when SIGWINCH handler was not initialised
+  (#3496)
+* Fix virtio-vsock blocking issue (#3497)
+
+# v20.1
+
+This is a bug fix release. The following issues have been addressed:
+
+* Networking performance regression with `virtio-net` (#3450)
+* Limit file descriptors sent in `vfio-user` support (#3401)
+* Fully advertise PCI MMIO config regions in ACPI tables (#3432)
+* Set the TSS and KVM identity maps so they don't overlap with firmware RAM
+* Correctly update the `DeviceTree` on restore
+
 # v20.0
 
 This release has been tracked through the [v20.0

rpm/cloud-hypervisor.spec

@@ -9,7 +9,7 @@
 
 Name:           cloud-hypervisor
 Summary:        Cloud Hypervisor is an open source Virtual Machine Monitor (VMM) that runs on top of KVM.
-Version:        20.0
+Version:        21.0
 Release:        0%{?dist}
 License:        ASL 2.0 or BSD-3-clause
 Group:          Applications/System
@@ -112,6 +112,9 @@ rm -rf %{buildroot}
 
 
 %changelog
+*   Thu Jan 20 2022 Rob Bradford <robert.bradford@intel.com> 21.0-0
+-   Update to 21.0
+
 *   Thu Dec 02 2021 Sebastien Boeuf <sebastien.boeuf@intel.com> 20.0-0
 -   Update to 20.0
 

vm-migration/src/lib.rs

@@ -15,7 +15,7 @@ use versionize::{VersionMap, Versionize};
 pub mod protocol;
 
 /// Global VMM version for versioning
-const MAJOR_VERSION: u16 = 20;
+const MAJOR_VERSION: u16 = 21;
 const MINOR_VERSION: u16 = 0;
 const VMM_VERSION: u16 = MAJOR_VERSION << 12 | MINOR_VERSION & 0b1111;