QEMU

本文介绍使用 libguestfs-tools 修改镜像文件密码的方法。 步骤 # 环境 # CentOS Linux release 7.9.2009 (AltArch) # 鲲鹏 ARM 服务器 第一步：检查并修改qemu访问虚拟机镜像的权限 修改 qemu 配置文件 /etc/libvirt/qemu.conf，将 user = "root" 和 group = "root" 注释取消，并重启 libvirtd 或重启宿主机。 ...

接上文，通过跟踪 libvirt 的源码，找到 virsh domblkinfo 最终是使用 QMP 协议从 QEMU 获取到关键字为 query-block 的数据，其中带有 wr_highest_offset 字段，该字段被 libvirt 认定为 磁盘利用率中 Allocation 值的来源。 今天就尝试在 QEMU 中找到获取 wr_highest_offset 字段的方法。 ...

编译 QEMU 时报如下错误： /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libgtk-3.so: undefined reference to `g_app_info_launch_default_for_uri_finish' /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libgtk-3.so: undefined reference to `g_type_check_instance_is_fundamentally_a' /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libgtk-3.so: undefined reference to `g_app_info_launch_default_for_uri_async' /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libgtk-3.so: undefined reference to `g_strv_contains' /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libgtk-3.so: undefined reference to `g_list_model_get_type' /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libgtk-3.so: undefined reference to `g_drive_is_removable' /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libgtk-3.so: undefined reference to `g_application_get_resource_base_path' /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libgtk-3.so: undefined reference to `g_log_structured_standard' /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libgtk-3.so: undefined reference to `g_type_get_instance_count' /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libgtk-3.so: undefined reference to `g_list_model_get_n_items' /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libgtk-3.so: undefined reference to `g_file_enumerator_iterate' /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libgtk-3.so: undefined reference to `g_param_spec_get_name_quark' /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libgtk-3.so: undefined reference to `g_list_model_get_item' collect2: error: ld returned 1 exit status make[1]: *** [qemu-system-x86_64] Error 1 make: *** [subdir-x86_64-softmmu] Error 2 先看一下报错的动态链接库依赖了哪些库： ...