1.dmesg命令

[root@Template ~]# dmesg |grep -i hypervisor
[    0.000000] Hypervisor detected: KVM

2.lscpu命令

[root@Template ~]# lscpu|grep Hypervisor
Hypervisor vendor:     KVM

Hypervisor vendor: KVM #虚拟机

Virtualization: VT-x #实体机

KVM：

　　虚拟化技术有两种类型的实现：

　　Type-I : hypervisor------>VM

　　Type-II：host------>VM----->VMS

3.systemd-detect-virt命令

[root@Template ~]# systemd-detect-virt
kvm

4.dmidecode命令

[root@Template ~]# dmidecode -t 1
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 2.8 present.

Handle 0x0100, DMI type 1, 27 bytes
System Information
        Manufacturer: QEMU
        Product Name: Standard PC (i440FX + PIIX, 1996)
        Version: pc-i440fx-7.2
        Serial Number: Not Specified
        UUID: 691b84b0-ff79-4d28-bcba-19fc255abdf0
        Wake-up Type: Power Switch
        SKU Number: Not Specified
        Family: Not Specified