redhat kvm

First, the environmentSystem: CentOS 6.4x64 Minimized installationip:192.168.3.45Second, the configuration of the virtualized environmentSee if KVM virtualization is supported[[emailprotected]~]#egrep "VMX|SVM" -- color=always/proc/cpuinfo #命令执行有结果返回, the ruler supports KVM virtualization Flags:fpuvme depsetscmsrpaemcecx8apicsepmtrrpgemca cmovpatpse36clflushdtsmmxfxsrssesse2ss syscallnxrdtscplmconstant_tscu

Install Apt-get install build-essential This qem-kvm version is qemu-kvm-1.2.0 Http://sourceforge.net/projects/kvm/files/qemu-kvm/ Extract Tar-xzf qemu-kvm-1.2.0.tar.gz Root @ compute :~ # Cd qemu-kvm-1.2.0/ You can run the./conf

Live Migration is also called Online Migration ). It is the process of moving a virtual machine system from one physical host to another while ensuring the normal operation of services on the virtual machine. Unlike static migration, to ensure the availability of Virtual Machine services during migration, the migration process has only a very short downtime.Currently, the mainstream dynamic migration tools www.2cto.com rely on centralized shared external storage devices such as SAN (storage area

This paper mainly introduces the static and dynamic migration of the KVM virtual machine, which is as follows: One, KVM virtual machine static migration 1. The static migration is the virtual machine in the Shutdown state, copy virtual machine virtual disk files and configuration files to the target virtual host, the implementation of the migration. (1) Virtual hosts use local storage to store virtual ma

1. Introduction Kernel-based virtual machine is an Open-source system virtualization module that has been integrated into Linux's major distributions since Linux 2.6.20. It uses Linux's own scheduler for management, so its core source is very small relative to Xen. KVM has now become one of the mainstream VMM in academia.KVM Virtualization requires hardware support (such as Intel VT Technology or AMD V technology). is hardware-based full virtualizatio

XXX: the document states that either an Intel CPU with VT (vmx) or an SVM (secure virtual machine, also known as a AMD-V) must be availableAMD CPUInstall. I installed it on turion 64 X2. No problem.Whether AMD and Intel CPU support VT or SVM. For details, referKernelHas_svm () and cpu_has_kvm_support () of KVM ()Function.1. Ensure that the kernel version is 2.6.20 or later, go to www.Kernel. Org to view the release time of your kernel, and then:Http:/

", so the kernel will automatically separate them again shoshould one process modify its data. KSM was originally intended to run more virtual machines on one host by sharing memory between processes as well as virtual machines. Check if support # Cat/boot/config-3.13.0-27-generic | grep KSMConfig_ksm = y Check whether enable # Cat/sys/kernel/MM/KSM/run0 This is disable. If it is set to 1, it is enable. Install Apt-Get install KVM qemu-

The KVM structure contains information such as Vcpus, memory, and Apic,irq,mmu,event event management. The information in this structure is primarily used inside a KVM virtual machine to track the state of a virtual machine.For a KVM, it corresponds to a thread.KVM takes full advantage of hardware virtualization technology to view information via Cat/proc/cpuinfo

[[emailprotected] cloud]# lsmod | grep kvmkvm_intel 55496 3 KVM 337772 1 kvm_intel[[emailprotected] cloud]# egrep "(V MX|SVM) "--color/proc/cpuinfo flags:fpu vme de PSE TSC MSR PAE MCE cx8 APIC Sep MTRR PGE MCA Cmov Pat PSE36 C Lflush DTS MMX FXSR SSE SSE2 SS Syscall NX PDPE1GB rdtscp lm constant_tsc Arch_perfmon pebs BTS xtopology tsc_reliable non STOP_TSC aperfmperf unfair_spinlock pni pclmulqdq vmx ssse3 FMA cx16 pcid sse4_1 sse4_2 x2apic movbe pop

Reference: Http://wenku.baidu.com/link?url=xAObzE8XuDfGJsCDk6vAnVnp91glt_bgvK6saMC4WS2BX7_ Du54ovido0uth0ipekovsfsuqsas62ruunvfvokgl5p6k3omznnmomgapossSummarize:1.KVM kernel Modules2.QEMU virtualization software: In user space, the CPU of virtual power can be on x863.QEMU-KVM: The user space tool that can control the kernel module, the user cannot go directly to the KVM