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1. #Grep vmx proc cpuinfo install
2. #Grep vmx proc cpuinfo upgrade
3. #Grep vmx proc cpuinfo full
4. #Grep vmx proc cpuinfo software
5. #Grep vmx proc cpuinfo code

Upgrade 1 Package (+ 16 Dependent packages)ĭelta RPMs disabled because /usr/bin/applydeltarpm not installed.

#Grep vmx proc cpuinfo install

Install 5 Packages (+213 Dependent packages) Install kvm management tools in user space ~]# yum install qemu-kvm qemu-kvm-tools libvirt virt-manager virt-install Next, install the kvm user space management tool Note: if the word "kvm" is not filtered by lsmod, it means that the host has not loaded the module. Tips: if the hardware is inter processor, vmx is filtered out, and svm is filtered out if AMD only one of the two can be used Ĭheck whether the kernel loads the kvm module Verification: now turn on Virtualization inter VT-x/EPT or AMD-V/RVI(V) to see if vmx or svm characters can be filtered on the host? Tip: the running virtual machine must be shut down first, then find the corresponding virtual machine, right-click Settings > processor, check the virtualization inter VT-x/EPT or AMD-V/RVI(V), and then click OK to open the virtual machine Note: if grep - e "vmx | svm) / proc / cpuinfo is executed on the host, if no vmx or svm related characters are filtered, the host does not support virtualization Įnable virtualization on vmware workstation host When using KVM, the host must support virtualization function in hardware, such as Inter VT technology or AMD V technology Ĭheck whether the host supports virtualization ~]# grep -E "vmx|svm" ~]# However, KVM itself does not perform any hardware simulation and requires user space programs to pass /The dev/kvm interface sets the address space of a client virtual server, provides it with analog I/O, and maps its video display back to the host screen.

#Grep vmx proc cpuinfo code

QEMU runs in user space through modified QEMU code used by KVM virtual machine, provides hardware I/O virtualization, and interacts with KVM through IOCTL/dev/kvm devices. After being intercepted by KVM, part of Guest I/O is handed over to QEMU for processing.

#Grep vmx proc cpuinfo software

Tips: KVM is a module in the Linux kernel, and for users to operate the functions provided by modules in the Linux kernel, a user space software must be installed in the user space and operated by system call QEMU is the management function of KVM in user space, a little similar to iptalbes, which is the management tool of netfilter the main role of KVM in the above architecture diagram is It provides virtual grading of CPU and memory, as well as I/O interception of clients.

But Xen itself has its own process scheduler, storage management module, so the code is relatively large.

#Grep vmx proc cpuinfo full

The early Xen is based on software simulation of para virtualization, the new version is based on hardware support of full virtualization. KVM virtualization needs hardware support (such as Inter VT technology or AMD V Technology), which is based on hardware. KVM has become one of the mainstream VMS in academia. It uses Linux's own scheduler for management, so its core source code is very few compared with Xen. It is an open source system virtualization module, which has been integrated into various major distributions of Linux since Linux 2.6.20.

The full name of KVM is kernel base virtual machine (kernel based virtual machine).