arm64 disable some feature bit of ID_AA64ISAR0_EL1

Hello community Experts! I am doing some experiments with arm64 host machine. The host machine is kunpeng 920 5251k. I try to boot a virtual machine with the following command: qemu-system-aarch64 -cpu cortex-a53 -enable-kvm -smp 1 -m 4096 -M virt,gic-version=3 Here I have modified the code,

Using blockdev-mirror for Live Backup

Hi, We are executing hundreds of VMs in our hosts (dual AMD EPYC 7002 CPUs + 2TB memory + 8 NVMe disks). To cope with disk failures, we tried different Linux software RAID mechanisms. At high disk usage, all of them faced unexpectedly high CPU load, mostly in the kernel. Therefore we decided no

RE: How should I build u-boot for qemu_arm64_defconfig and run it on arm64 qemu virt machine?

Hello all, I found by compiling u-boot-spl to start at 0x4020 and using -kernel option, I can make u-boot-spl start loaded and started from 0x4020. And then by loading the .itb file (FIT file) which contains u-boot proper binary at 0x4040 using -device loader option, and setting CON