QEMU 9.0 Released with Raspberry Pi 4 Support, LoongArch KVM Acceleration

The open-source QEMU 9.0 machine emulator and virtualization software has been released as a major update that brings various new features and improvements for ARM, RISC-V, LoongArch, s390x, and HPPA emulation.

Highlights of QEMU 9.0 include multiqueue support for virtio-blk allowing different queues of a single disk to be processed by different I/O threads, the ability to concurrently handle preallocation of memory backends using multiple threads in some cases, and support for the “mapped-ram” capability allowing for more efficient virtual machine snapshots, checkpoint-restart support for VFIO, and improved support for zero-page detection.

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