Differences

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--- en:xu4_xen [2015/10/16 12:26]
brian.kim
+++ en:xu4_xen [2016/05/03 17:34] (current)
brian.kim [Domain U Settings && Running]
@@ Line 1: / Line 1: @@
 ====== Virtualization using Xen on ODROID-XU3/4 ======
-This page contains the step-by-step guide for virtualization using Xen on ODROID-XU3/4.
+This page contains the **step-by-step guide for virtualization** using Xen on ODROID-XU3/4.
 **//HOST-PC Environments://**
@@ Line 13: / Line 13: @@
 $ wget http://odroid.in/ubuntu_14.04lts/ubuntu-14.04lts-server-odroid-xu3-20150725.img.xz
 $ unxz ubuntu-14.04lts-server-odroid-xu3-20150725.img.xz
-$ sudo dd if=ubuntu-14.04lts-server-odroid-xu3-20150725.img.xz of=/dev/sdc bs=1M conv=fsync
+$ sudo dd if=ubuntu-14.04lts-server-odroid-xu3-20150725.img of=/dev/sdc bs=1M conv=fsync
 $ sync
 </code>
@@ Line 31: / Line 31: @@
 </code>
+Changing [[http://git.io/vCu3c|boot.ini]] file for virtualization:
+<code>
+$ wget http://git.io/vCu3c -O boot.ini
+$ sudo cp -f boot.ini /media/boot/
+$ sync
+</code>
+<WRAP left round important 100%>
+Note: Please follow [[http://odroid.com/dokuwiki/doku.php?id=en:emmc_recovery_xu3|XU3/XU4 eMMC Bootloader Recovery wiki page]] to burn the bootloader to eMMC.
+</WRAP>
+===== Xen Hypervisor =====
+Getting the xen soruce code:
+<code>
+$ git clone https://github.com/bkrepo/xen.git -b odroid-xu4
+$ cd xen
+</code>
+Build & Installation:
+<code>
+$ make dist-xen CROSS_COMPILE=arm-none-eabi- XEN_TARGET_ARCH=arm32 debug=y CONFIG_EARLY_PRINTK=exynos5250 -j8
+$ sudo cp xen/xen /media/boot/
+$ sync
+</code>
+===== Domain 0 Linux kernel =====
+Build & Installation:
+<code>
+$ git clone https://github.com/bkrepo/linux-dom0.git
+$ cd linux-dom0
+$ make odroidxu3_xen_defconfig ARCH=arm
+$ make ARCH=arm CROSS_COMPILE=arm-none-eabi- -j8
+$ sudo make modules_install ARCH=arm INSTALL_MOD_PATH=/media/rootfs/
+$ cp -f arch/arm/boot/zImage arch/arm/boot/dts/exynos5422-odroidxu3.dtb /media/boot/
+$ sync
+</code>
+===== Domain 0 Settings =====
+<WRAP left round tip 70%>
+ **Note**
+  * This step must be done on **ODROID-XU3/4** (id: //root//, password: //odroid//)
+</WRAP>
+==== Xen tools installation====
+Getting the xen source code:
+<code>
+$ git clone https://github.com/bkrepo/xen.git -b odroid-xu4
+$ cd xen
+</code>
+Installation packages for xen tools build:
+<code>
+$ apt-get update
+$ apt-get build-dep xen
+$ apt-get install libpixman-1-dev
+</code>
+Building xen tools:
+<code>
+$ ./configure --disable-xen --disable-docs
+$ make dist-tools -j4
+$ make install-tools
+$ update-rc.d xencommons defaults 19 18
+$ update-rc.d xendomains defaults 21 20
+$ update-rc.d xen-watchdog defaults 22 23
+$ ldconfig
+</code>
+==== Network configuration ====
+DHCP bridge network configuration:
+<code>
+$ apt-get install bridge-utils
+$ vim /etc/network/interfaces.d/xenbr0
+</code>
+<code - xenbr0>
+auto xenbr0 inet
+iface xenbr0 inet dhcp
+bridge_ports eth0
+</code>
+* //If you want more information about Xen networking, then refer to [[http://wiki.xenproject.org/wiki/Network_Configuration_Examples_(Xen_4.1%2B)|this link. ]]//
+===== Domain U Settings && Running =====
+**(On HOST-PC)**
+Domain U kernel build preparation:
+<code>
+$ wget https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.2.tar.xz
+$ tar Jxvf linux-4.2.tar.xz
+$ cd linux
+$ make exynos_defconfig ARCH=arm
+$ make menuconfig ARCH=arm
+</code>
+  - Kernel Features -> Xen guest support on ARM
+  - Device Drivers -> Block devices -> Xen virtual block device support.
+  - Device Drivers -> Network device support -> Xen network device frontend
+  - Device Drivers -> Xen driver support -> Select all.
+  - System Type -> ARM system type -> Allow multiple platforms to be selected.
+  - System Type -> Multiple platform selection -> ARMv7 based platforms
+  - System Type -> Dummy Virtual Machine.
+  - Device Drivers -> Input Device support -> Miscellaneous devices -> Xen virtual keyboard and mouse support.
+Patching Domain U kernel source code:
+<code>
+$ wget http://git.io/vCV9E -O xen_blkif.patch
+$ patch -p1 < xen_blkif.patch
+</code>
+Build & Installation:
+<code>
+$ make ARCH=arm CROSS_COMPILE=arm-none-eabi- zImage -j8
+$ sudo cp arch/arm/boot/zImage /media/rootfs/root/
+$ sync
+</code>
+Creating the [[http://odroid.in/ubuntu_14.04lts/ubuntu-14.04lts-server-odroid-xu3-20150725.img.xz|domain U image(Ubuntu 14.04 server)]]:
+<code>
+$ sudo kpartx -v -a ubuntu-14.04lts-server-odroid-xu3-20150725.img
+$ sudo dd if=/dev/mapper/loop0p2 of=domU.img
+</code>
+Modifiying domain U root file system
+<code>
+$ mkdir domU-root
+$ sudo mount domU.img domU-root
+$ cd domU-root
+$ vi ./etc/fstab
+</code>
+<code - /etc/fstab>
+/dev/xvda    /    ext4    errors=remount-ro    0    1
+</code>
+<code>
+$ vi ./etc/init/console.conf
+</code>
+<code - /etc/init/console.conf>
+start on stopped rc RUNLEVEL=[2345]
+stop on runlevel [!2345]
+respawn
+exec /sbin/getty -8 38400 hvc0
+</code>
+<code>
+$ cd ..
+$ sudo umount domU-root
+$ sudo cp domU.img /media/rootfs/root/
+$ sync
+</code>
+Create the xen configuration file:
+<code>
+$ vi domU.cfg
+</code>
+<code - domU.cfg>
+kernel = "/root/zImage"
+memory = 256
+maxmem = 256
+name = "Domain U"
+vcpus = 1
+cpus = ['1']
+serial="pty"
+disk = [ 'phy:/root/domU.img,xvda,w' ]
+vif = ['bridge=xenbr0']
+extra = 'console=hvc0 xencons=tty root=/dev/xvda rw'
+</code>
+<code>
+$ sudo cp domU.cfg /media/rootfs/root/
+$ sync
+</code>
+Running virtual machine(**On ODROID-XU3/4**, id: 'root', passwd: 'odroid'):
+<code>
+# xl create -c domU.cfg
+</code>
+Checking the domain list.
+<code>
+(Type the 'CTRL + x + ]' key -> Escaping Domain U, Moving to Domain 0 console.)
+root@odroid-server:~# xl list
+Name                                        ID   Mem VCPUs      State   Time(s)
+Domain-0                                     0   800     4     r-----     534.3
+Domain U                                     1   256     1     -b----      49.9
+root@odroid-server:~#
+</code>
+===== References =====
+  * [[http://forum.odroid.com/viewtopic.php?f=98&t=6643|Related Topic in ODROID Forum]]
+  * [[http://wiki.xenproject.org/wiki/Xen_ARM_with_Virtualization_Extensions/OdroidXU|Xen ARM with Virtualization Extensions/OdroidXU]]
+  * [[https://github.com/cypresskr/xen|cypresskr's xen repository]]
+  * [[https://github.com/suriyanr/linux-xen/tree/odroidxu3-3.10.y|suriyanr's domain 0 linux kernel repository]]