KVM: Difference between revisions

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== Packages ==
== Packages ==
{{Box Code|paludis --install qemu-kvm --pretend|
{{Code|paludis --install qemu-kvm --pretend|
<pre>
<pre>
* media-libs/libsndfile [N 1.0.20]
* media-libs/libsndfile [N 1.0.20]
Line 41: Line 41:
}}
}}


{{Box Code|paludis --install iptables bridge-utils usermode-utilities --pretend|
{{Code|paludis --install iptables bridge-utils usermode-utilities --pretend|
<pre>
<pre>
* net-firewall/iptables [N 1.4.5] <target>
* net-firewall/iptables [N 1.4.5] <target>
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== USE-Flags ==
== USE-Flags ==
{{Box File|/etc/paludis/use.conf|
{{File|/etc/paludis/use.conf|
<pre>
<pre>
*/* QEMU_SOFTMMU_TARGETS: -* i386 x86_64
*/* QEMU_SOFTMMU_TARGETS: -* i386 x86_64
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== Installation ==
== Installation ==
{{Root|# paludis --install qemu-kvm}}
{{Root|paludis --install qemu-kvm}}


== Kernel Configuration ==
== Kernel Configuration ==
{{Box Kernel|KVM Kernel Configuration|
{{Kernel|KVM Kernel Configuration|
<pre>
<pre>
[*] Networking  support --->
[*] Networking  support --->
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== Network configuration ==
== Network configuration ==
{{Box File|/etc/conf.d/net|
{{File|/etc/conf.d/net|
<pre>
<pre>
config_eth0=( "null" )
config_eth0=( "null" )
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}}
}}


{{Root|# /etc/init.d/}}
{{Root|/etc/init.d/}}


{{Root|# ln -s net.lo net.br0}}
{{Root|ln -s net.lo net.br0}}


{{Root|# ln -s net.lo net.tap0}}
{{Root|ln -s net.lo net.tap0}}


{{Root|# rc-update add net.br0 default}}
{{Root|rc-update add net.br0 default}}


{{Root|# rc-update add net.tap0 default}}
{{Root|rc-update add net.tap0 default}}


{{Box File|/etc/conf.d/vde|
{{File|/etc/conf.d/vde|
<pre>
<pre>
VDE_MODPROBE_TUN="no"
VDE_MODPROBE_TUN="no"
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}}
}}


{{Root|# rc-update add vde default}}
{{Root|rc-update add vde default}}




== Add existing user to the necessary groups ==
== Add existing user to the necessary groups ==


{{Root|# usermod -a -G kvm,qemu username}}
{{Root|usermod -a -G kvm,qemu username}}


== Usage ==
== Usage ==
=== Generate random MAC adresses ===
=== Generate random MAC adresses ===
{{Command|<nowiki># echo -n DE:AD:BE:EF ; for i in `seq 1 2` ; do echo -n `echo ":$RANDOM$RANDOM" | cut -n -c -3` ;done</nowiki>}}
{{Command|<nowiki>echo -n DE:AD:BE:EF ; for i in `seq 1 2` ; do echo -n `echo ":$RANDOM$RANDOM" | cut -n -c -3` ;done</nowiki>}}




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{{Command|# mkdir -p /mnt/kvm}}
{{Root|mkdir -p /mnt/kvm}}




{{Box File|/etc/fstab|
{{File|/etc/fstab|
<pre>
<pre>
/dev/sda4              /mnt/kvm        ext4            defaults,auto,user 0 1
/dev/sda4              /mnt/kvm        ext4            defaults,auto,user 0 1
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{{Root|# chown -R root:kvm /mnt/kvm}}
{{Root|chown -R root:kvm /mnt/kvm}}


{{Root|# chmod -R g+w /mnt/kvm}}
{{Root|chmod -R g+w /mnt/kvm}}


{{Command|# qemu-img create -f qcow2 /mnt/kvm/linux-test.img 15G}}
{{Command|qemu-img create -f qcow2 /mnt/kvm/linux-test.img 15G}}


{{Command|<nowiki># vdeq qemu /mnt/kvm/linux-test.img -cdrom /dev/cdrom -soundhw es1370 -usb -m 1024 -k de -smp 1 -vga std -localtime -net nic,vlan=0,macaddr=DE:AD:BE:FF:15:33 -net vde,vlan=0,sock=/var/run/vde.ctl</nowiki>}}
{{Command|<nowiki># vdeq qemu /mnt/kvm/linux-test.img -cdrom /dev/cdrom -soundhw es1370 -usb -m 1024 -k de -smp 1 -vga std -localtime -net nic,vlan=0,macaddr=DE:AD:BE:FF:15:33 -net vde,vlan=0,sock=/var/run/vde.ctl</nowiki>}}




{{Command|# qemu-img create -f qcow2 /mnt/kvm/windows-test.img 15G}}
{{Command|qemu-img create -f qcow2 /mnt/kvm/windows-test.img 15G}}


{{Command|<nowiki># vdeq qemu /mnt/kvm/windows-test.img -cdrom /dev/cdrom -soundhw es1370 -usb -m 1024 -k de -smp 1 -vga std -localtime -net nic,vlan=0,macaddr=DE:AD:BE:EF:14:32 -net vde,vlan=0,sock=/var/run/vde.ctl</nowiki>}}
{{Command|<nowiki>vdeq qemu /mnt/kvm/windows-test.img -cdrom /dev/cdrom -soundhw es1370 -usb -m 1024 -k de -smp 1 -vga std -localtime -net nic,vlan=0,macaddr=DE:AD:BE:EF:14:32 -net vde,vlan=0,sock=/var/run/vde.ctl</nowiki>}}


Once done installing and after enabling the remote desktop access in Windows you can add the -nographic switch and start the kvm machine via a login script for example.
Once done installing and after enabling the remote desktop access in Windows you can add the -nographic switch and start the kvm machine via a login script for example.


{{Command|<nowiki># vdeq qemu /mnt/kvm/windows-test.img -nographic -soundhw es1370 -usb -m 1024 -k de -smp 1 -vga std -localtime -net nic,vlan=0,macaddr=DE:AD:BE:EF:14:32 -net vde,vlan=0,sock=/var/run/vde.ctl</nowiki>}}
{{Command|<nowiki>vdeq qemu /mnt/kvm/windows-test.img -nographic -soundhw es1370 -usb -m 1024 -k de -smp 1 -vga std -localtime -net nic,vlan=0,macaddr=DE:AD:BE:EF:14:32 -net vde,vlan=0,sock=/var/run/vde.ctl</nowiki>}}


You really want to use an RDP session to connect to your Windows Boxes since the mouse movement is horrible slow and laggy when using the SDL client.
You really want to use an RDP session to connect to your Windows Boxes since the mouse movement is horrible slow and laggy when using the SDL client.

Revision as of 15:11, 27 July 2011

Description

Setting up the Kernel-based Virtual Machine including network configuration and being able to create and run new machines as a normal user without requiring root privileges.

Packages

Code: paludis --install qemu-kvm --pretend 
* media-libs/libsndfile [N 1.0.20]
    Reasons: *net-wireless/bluez-4.39-r2:0::gentoo
    alsa -jack -minimal -sqlite build_options: -optional_tests -split strip -trace
    "A C library for reading and writing files containing sampled sound"
    905.69 kBytes to download
* dev-libs/libnl [N 1.1-r2]
    Reasons: *net-wireless/bluez-4.39-r2:0::gentoo
    build_options: -optional_tests -split strip -trace
    "A library for applications dealing with netlink socket"
    282.16 kBytes to download
* net-wireless/bluez [N 4.39-r2]
    Reasons: *app-emulation/qemu-kvm-0.11.0:0::gentoo
    alsa consolekit cups -debug -doc -gstreamer -old-daemons -test-programs usb build_options: -optional_tests -split strip -trace
    "Bluetooth Tools and System Daemons for Linux"
    974.81 kBytes to download
* media-libs/libsdl [N 1.2.14]
    Reasons: *app-emulation/qemu-kvm-0.11.0:0::gentoo
    X -aalib alsa audio -custom-cflags -dga -directfb -fbcon -ggi joystick -libcaca -nas opengl -oss (-ps3) -pulseaudio (-svga) -tslib video -xinerama xv build_options: -optional_tests -split strip -trace
    "Simple Direct Media Layer"
* net-misc/vde [N 2.2.3]
    Reasons: *app-emulation/qemu-kvm-0.11.0:0::gentoo
    -pcap ssl build_options: -optional_tests -split strip -trace
    "vde2 is a virtual distributed ethernet emulator for emulators like qemu, bochs, and uml."
    511.71 kBytes to download
* app-text/texi2html [N 1.78]
    Reasons: *app-emulation/qemu-kvm-0.11.0:0::gentoo
    build_options: -optional_tests -split strip -trace
    "Perl script that converts Texinfo to HTML"
    442.60 kBytes to download
* app-emulation/qemu-kvm [N 0.11.0] <target>
    alsa bluetooth -esd -gnutls ncurses -pulseaudio -sasl sdl vde QEMU_SOFTMMU_TARGETS: -arm -cris i386 -m68k -mips -mips64 -mips64el -mipsel -ppc -ppc64 -ppcemb -sh4 -sh4eb -sparc x86_64 QEMU_USER_TARGETS: -alpha -arm -armeb -cris i386 -m68k -mips -mips64 -mips64el -mipsel -ppc -ppc64 -ppc64abi32 -sh4 -sh4eb -sparc -sparc32plus -sparc64 x86_64 build_options: -split strip -trace
    "QEMU + Kernel-based Virtual Machine userland tools"
    4.18 MBytes to download
Code: paludis --install iptables bridge-utils usermode-utilities --pretend 
* net-firewall/iptables [N 1.4.5] <target>
    ipv6 build_options: -optional_tests -split strip -trace
    "Linux kernel (2.4+) firewall, NAT and packet mangling tools"
    450.66 kBytes to download
* net-misc/bridge-utils [N 1.4] <target>
    build_options: -optional_tests -split strip -trace
    "Tools for configuring the Linux kernel 802.1d Ethernet Bridge"
    31.89 kBytes to download
* sys-fs/fuse [N 2.8.1]
    Reasons: *sys-apps/usermode-utilities-20070815:0::gentoo
    build_options: -optional_tests -split strip -trace
    "An interface for filesystems implemented in userspace."
    481.32 kBytes to download
* sys-apps/usermode-utilities [N 20070815] <target>
    build_options: -optional_tests -split strip -trace
    "Tools for use with Usermode Linux virtual machines"
    48.98 kBytes to download

USE-Flags

File: /etc/paludis/use.conf
*/* QEMU_SOFTMMU_TARGETS: -* i386 x86_64
*/* QEMU_USER_TARGETS: -* i386 x86_64
app-emulation/qemu-kvm vde

Installation

# paludis --install qemu-kvm

Kernel Configuration

Linux Kernel Configuration: KVM Kernel Configuration 
[*] Networking  support --->
  Networking options  --->
    [*] 802.1d Ethernet Bridging 
Device Drivers  --->
  [*] Network device support  --->
    <*>   Universal TUN/TAP device driver support
[*] Virtualization  --->
  <*>   Kernel-based Virtual Machine (KVM) support

Enable once kvm is fixed for VT-D-Support:

Bus options (PCI etc.)  --->
  [ ] Support for DMA Remapping Devices (EXPERIMENTAL)

Network configuration

File: /etc/conf.d/net
config_eth0=( "null" )

tuntap_tap0="tap"
config_tap0=( "null" )

brctl_br0=( "setfd 9" "sethello 2" "setmaxage 12" "stp off" )
config_br0=( "192.168.0.2 netmask 255.255.255.0 brd 192.168.0.255" )
routes_br0=( "default via 192.168.0.1" )

bridge_add_eth0="br0"
bridge_add_tap0="br0"
# /etc/init.d/
# ln -s net.lo net.br0
# ln -s net.lo net.tap0
# rc-update add net.br0 default
# rc-update add net.tap0 default
File: /etc/conf.d/vde
VDE_MODPROBE_TUN="no"
# rc-update add vde default


Add existing user to the necessary groups

# usermod -a -G kvm,qemu username

Usage

Generate random MAC adresses

$ echo -n DE:AD:BE:EF ; for i in `seq 1 2` ; do echo -n `echo ":$RANDOM$RANDOM" | cut -n -c -3` ;done


You can always setup new machines in your home directory, but here we assume we have a separate mount-point/partition which we mount at /mnt/kvm.


# mkdir -p /mnt/kvm


File: /etc/fstab
/dev/sda4               /mnt/kvm        ext4            defaults,auto,user 0 1


# chown -R root:kvm /mnt/kvm
# chmod -R g+w /mnt/kvm
$ qemu-img create -f qcow2 /mnt/kvm/linux-test.img 15G
$ # vdeq qemu /mnt/kvm/linux-test.img -cdrom /dev/cdrom -soundhw es1370 -usb -m 1024 -k de -smp 1 -vga std -localtime -net nic,vlan=0,macaddr=DE:AD:BE:FF:15:33 -net vde,vlan=0,sock=/var/run/vde.ctl


$ qemu-img create -f qcow2 /mnt/kvm/windows-test.img 15G
$ vdeq qemu /mnt/kvm/windows-test.img -cdrom /dev/cdrom -soundhw es1370 -usb -m 1024 -k de -smp 1 -vga std -localtime -net nic,vlan=0,macaddr=DE:AD:BE:EF:14:32 -net vde,vlan=0,sock=/var/run/vde.ctl

Once done installing and after enabling the remote desktop access in Windows you can add the -nographic switch and start the kvm machine via a login script for example.

$ vdeq qemu /mnt/kvm/windows-test.img -nographic -soundhw es1370 -usb -m 1024 -k de -smp 1 -vga std -localtime -net nic,vlan=0,macaddr=DE:AD:BE:EF:14:32 -net vde,vlan=0,sock=/var/run/vde.ctl

You really want to use an RDP session to connect to your Windows Boxes since the mouse movement is horrible slow and laggy when using the SDL client.

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