开源虚拟化应用 QEMU 今天发布 9.0.0 重大版本更新，包含来自 220 位贡献者提交的 2700 多次改进。重点内容包括 ARM 架构优化、支持单板计算机树莓派 4 以及支持在龙芯架构上使用 KVM 加速等。
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QEMU v9.0.0 主要新特性包括：virtio-blk 支持多队列；使用多线程同时处理内存后端预分配；支持 mapped-ram 功能允许更高效的虚拟机快照；龙芯的 LoongArch 架构支持 KVM 加速，包括 LSX/LASX 矢量扩展；改进 RISC-V 支持，等等。QEMU 项目由 Fabrice Bellard 创建，最初设想在非 x86 平台上运行 x86 Linux 二进制程序，随后转变成跨架构的全系统模拟器。
「QEMU v9.0.0 版更新发布：https://0xo.net/511」官方发布：QEMU version 9.0.0 released
block: virtio-blk now supports multiqueue where different queues of a single disk can be processed by different I/O threads
gdbstub: various improvements such as catching syscalls in user-mode, support for fork-follow modes, and support for siginfo:read
memory: preallocation of memory backends can now be handled concurrently using multiple threads in some cases
migration: support for “mapped-ram” capability allowing for more efficient VM snapshots, improved support for zero-page detection, and checkpoint-restart support for VFIO
ARM: architectural feature support for ECV (Enhanced Counter Virtualization), NV (Nested Virtualization), and NV2 (Enhanced Nested Virtualization)
ARM: board support for B-L475E-IOT01A IoT node, mp3-an536 (MPS3 dev board + AN536 firmware), and raspi4b (Raspberry Pi 4 Model B)
ARM: additional IO/disk/USB/SPI/ethernet controller and timer support for Freescale i.MX6, Allwinner R40, Banana Pi, npcm7xxx, and virt boards
HPPA: numerous bug fixes and SeaBIOS-hppa firmware updated to version 16
LoongArch: KVM acceleration support, including LSX/LASX vector extensions
RISC-V: ISA/extension support for Zacas, amocas, RVA22 profiles, Zaamo, Zalrsc, Ztso, and more
RISC-V: SMBIOS support for RISC-V virt machine, ACPI support for SRAT, SLIT, AIA, PLIC and updated RHCT table support, and numerous fixes
s390x: Emulation support for CVDG, CVB, CVBY and CVBG instructions, and fixes for LAE (Load Address Extended) emulation
and lots more…
下载地址：https://www.qemu.org/download/
本文首发于：QEMU v9.0.0 版更新发布-歲月留聲
「QEMU v9.0.0 版更新发布：https://0xo.net/511」任何服务、机场均有跑路风险，大小机场也没有绝对好坏，请注意甄别防范！！备用节点参考：大哥云官网、万城专线官网、飞机云官网、搬瓦工JMS、极客云官网……解压及网盘密码 1024
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