QEMU 8.1 released: Device simulation software that supports LoongArch LSX extension and improves CPU performance

News from this site on August 24, The open source QEMU 8.1 device emulator and virtualization software has been officially released. This is the first important update of the QEMU 8.0 series , friends can find it here Related download address.

▲ Picture source QEMU official website

QEMU (Quick Emulator) is one of the mainstream equipment simulation software in the industry. It can run operating systems and programs that support other architectures on physical machines of one architecture (such as X86 PC), allowing software to run seamlessly on different hardware architectures. For software developers, QEMU provides a platform for executing systems under different hardware architectures, as well as a cross-architecture integrated testing environment, thereby improving the efficiency and maturity of software development

The following is QEMU attached to this site Major changelog for 8.1:

• ##New x86 CPU models will support Intel Granite Rapids

• Microcode Generator (Tiny Code Generator, TCG) supports RDPID instructions, can use the AES acceleration on the host processor to execute AES instructions, and also has other new functions

• from supporting BF16 to Zfa extension, Zcm* Extensions and various RISC-V architecture improvements, also added Ventana Veyron V1 CPU and many RISC-V fixes

• For LoongArch LSX extensions and various fixes for this CPU architecture, we Full support provided

• KVM virtual machines that support using Memory Tag Extensions (MTE) on the host can now use MTE in the guest

• The content that needs to be rewritten is: the new CPU type of Cortex Neoverse V1 (neoverse-v1) has been added. In addition, there is a new ARM board model Banana Pi BPI-M2 Ultra (bpim2u)

• Added a new input device named "virtio-multiotuch-pci" for Multi-touch input devices

• Improvements to e1000e and IGB Intel network device emulation

• Provide shadow virtqueue offload support for vhost-vDPA interface The content needs to be rewritten

• Provide new PipeWire based audio backend for use with QEMU

• GTK for multi-touch events Interface support

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