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ia64/xen: a recipe for using xen/ia64 with pv_ops.
Recipe for using xen/ia64 with pv_ops domU. Signed-off-by: Akio Takebe <takebe_akio@jp.fujitsu.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
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Documentation/ia64/xen.txt
| 1 | + Recipe for getting/building/running Xen/ia64 with pv_ops | |
| 2 | + -------------------------------------------------------- | |
| 3 | + | |
| 4 | +This recipe describes how to get xen-ia64 source and build it, | |
| 5 | +and run domU with pv_ops. | |
| 6 | + | |
| 7 | +============ | |
| 8 | +Requirements | |
| 9 | +============ | |
| 10 | + | |
| 11 | + - python | |
| 12 | + - mercurial | |
| 13 | + it (aka "hg") is an open-source source code | |
| 14 | + management software. See the below. | |
| 15 | + http://www.selenic.com/mercurial/wiki/ | |
| 16 | + - git | |
| 17 | + - bridge-utils | |
| 18 | + | |
| 19 | +================================= | |
| 20 | +Getting and Building Xen and Dom0 | |
| 21 | +================================= | |
| 22 | + | |
| 23 | + My environment is; | |
| 24 | + Machine : Tiger4 | |
| 25 | + Domain0 OS : RHEL5 | |
| 26 | + DomainU OS : RHEL5 | |
| 27 | + | |
| 28 | + 1. Download source | |
| 29 | + # hg clone http://xenbits.xensource.com/ext/ia64/xen-unstable.hg | |
| 30 | + # cd xen-unstable.hg | |
| 31 | + # hg clone http://xenbits.xensource.com/ext/ia64/linux-2.6.18-xen.hg | |
| 32 | + | |
| 33 | + 2. # make world | |
| 34 | + | |
| 35 | + 3. # make install-tools | |
| 36 | + | |
| 37 | + 4. copy kernels and xen | |
| 38 | + # cp xen/xen.gz /boot/efi/efi/redhat/ | |
| 39 | + # cp build-linux-2.6.18-xen_ia64/vmlinux.gz \ | |
| 40 | + /boot/efi/efi/redhat/vmlinuz-2.6.18.8-xen | |
| 41 | + | |
| 42 | + 5. make initrd for Dom0/DomU | |
| 43 | + # make -C linux-2.6.18-xen.hg ARCH=ia64 modules_install \ | |
| 44 | + O=$(/bin/pwd)/build-linux-2.6.18-xen_ia64 | |
| 45 | + # mkinitrd -f /boot/efi/efi/redhat/initrd-2.6.18.8-xen.img \ | |
| 46 | + 2.6.18.8-xen --builtin mptspi --builtin mptbase \ | |
| 47 | + --builtin mptscsih --builtin uhci-hcd --builtin ohci-hcd \ | |
| 48 | + --builtin ehci-hcd | |
| 49 | + | |
| 50 | +================================ | |
| 51 | +Making a disk image for guest OS | |
| 52 | +================================ | |
| 53 | + | |
| 54 | + 1. make file | |
| 55 | + # dd if=/dev/zero of=/root/rhel5.img bs=1M seek=4096 count=0 | |
| 56 | + # mke2fs -F -j /root/rhel5.img | |
| 57 | + # mount -o loop /root/rhel5.img /mnt | |
| 58 | + # cp -ax /{dev,var,etc,usr,bin,sbin,lib} /mnt | |
| 59 | + # mkdir /mnt/{root,proc,sys,home,tmp} | |
| 60 | + | |
| 61 | + Note: You may miss some device files. If so, please create them | |
| 62 | + with mknod. Or you can use tar instead of cp. | |
| 63 | + | |
| 64 | + 2. modify DomU's fstab | |
| 65 | + # vi /mnt/etc/fstab | |
| 66 | + /dev/xvda1 / ext3 defaults 1 1 | |
| 67 | + none /dev/pts devpts gid=5,mode=620 0 0 | |
| 68 | + none /dev/shm tmpfs defaults 0 0 | |
| 69 | + none /proc proc defaults 0 0 | |
| 70 | + none /sys sysfs defaults 0 0 | |
| 71 | + | |
| 72 | + 3. modify inittab | |
| 73 | + set runlevel to 3 to avoid X trying to start | |
| 74 | + # vi /mnt/etc/inittab | |
| 75 | + id:3:initdefault: | |
| 76 | + Start a getty on the hvc0 console | |
| 77 | + X0:2345:respawn:/sbin/mingetty hvc0 | |
| 78 | + tty1-6 mingetty can be commented out | |
| 79 | + | |
| 80 | + 4. add hvc0 into /etc/securetty | |
| 81 | + # vi /mnt/etc/securetty (add hvc0) | |
| 82 | + | |
| 83 | + 5. umount | |
| 84 | + # umount /mnt | |
| 85 | + | |
| 86 | +FYI, virt-manager can also make a disk image for guest OS. | |
| 87 | +It's GUI tools and easy to make it. | |
| 88 | + | |
| 89 | +================== | |
| 90 | +Boot Xen & Domain0 | |
| 91 | +================== | |
| 92 | + | |
| 93 | + 1. replace elilo | |
| 94 | + elilo of RHEL5 can boot Xen and Dom0. | |
| 95 | + If you use old elilo (e.g RHEL4), please download from the below | |
| 96 | + http://elilo.sourceforge.net/cgi-bin/blosxom | |
| 97 | + and copy into /boot/efi/efi/redhat/ | |
| 98 | + # cp elilo-3.6-ia64.efi /boot/efi/efi/redhat/elilo.efi | |
| 99 | + | |
| 100 | + 2. modify elilo.conf (like the below) | |
| 101 | + # vi /boot/efi/efi/redhat/elilo.conf | |
| 102 | + prompt | |
| 103 | + timeout=20 | |
| 104 | + default=xen | |
| 105 | + relocatable | |
| 106 | + | |
| 107 | + image=vmlinuz-2.6.18.8-xen | |
| 108 | + label=xen | |
| 109 | + vmm=xen.gz | |
| 110 | + initrd=initrd-2.6.18.8-xen.img | |
| 111 | + read-only | |
| 112 | + append=" -- rhgb root=/dev/sda2" | |
| 113 | + | |
| 114 | +The append options before "--" are for xen hypervisor, | |
| 115 | +the options after "--" are for dom0. | |
| 116 | + | |
| 117 | +FYI, your machine may need console options like | |
| 118 | +"com1=19200,8n1 console=vga,com1". For example, | |
| 119 | +append="com1=19200,8n1 console=vga,com1 -- rhgb console=tty0 \ | |
| 120 | +console=ttyS0 root=/dev/sda2" | |
| 121 | + | |
| 122 | +===================================== | |
| 123 | +Getting and Building domU with pv_ops | |
| 124 | +===================================== | |
| 125 | + | |
| 126 | + 1. get pv_ops tree | |
| 127 | + # git clone http://people.valinux.co.jp/~yamahata/xen-ia64/linux-2.6-xen-ia64.git/ | |
| 128 | + | |
| 129 | + 2. git branch (if necessary) | |
| 130 | + # cd linux-2.6-xen-ia64/ | |
| 131 | + # git checkout -b your_branch origin/xen-ia64-domu-minimal-2008may19 | |
| 132 | + (Note: The current branch is xen-ia64-domu-minimal-2008may19. | |
| 133 | + But you would find the new branch. You can see with | |
| 134 | + "git branch -r" to get the branch lists. | |
| 135 | + http://people.valinux.co.jp/~yamahata/xen-ia64/for_eagl/linux-2.6-ia64-pv-ops.git/ | |
| 136 | + is also available. The tree is based on | |
| 137 | + git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 test) | |
| 138 | + | |
| 139 | + | |
| 140 | + 3. copy .config for pv_ops of domU | |
| 141 | + # cp arch/ia64/configs/xen_domu_wip_defconfig .config | |
| 142 | + | |
| 143 | + 4. make kernel with pv_ops | |
| 144 | + # make oldconfig | |
| 145 | + # make | |
| 146 | + | |
| 147 | + 5. install the kernel and initrd | |
| 148 | + # cp vmlinux.gz /boot/efi/efi/redhat/vmlinuz-2.6-pv_ops-xenU | |
| 149 | + # make modules_install | |
| 150 | + # mkinitrd -f /boot/efi/efi/redhat/initrd-2.6-pv_ops-xenU.img \ | |
| 151 | + 2.6.26-rc3xen-ia64-08941-g1b12161 --builtin mptspi \ | |
| 152 | + --builtin mptbase --builtin mptscsih --builtin uhci-hcd \ | |
| 153 | + --builtin ohci-hcd --builtin ehci-hcd | |
| 154 | + | |
| 155 | +======================== | |
| 156 | +Boot DomainU with pv_ops | |
| 157 | +======================== | |
| 158 | + | |
| 159 | + 1. make config of DomU | |
| 160 | + # vi /etc/xen/rhel5 | |
| 161 | + kernel = "/boot/efi/efi/redhat/vmlinuz-2.6-pv_ops-xenU" | |
| 162 | + ramdisk = "/boot/efi/efi/redhat/initrd-2.6-pv_ops-xenU.img" | |
| 163 | + vcpus = 1 | |
| 164 | + memory = 512 | |
| 165 | + name = "rhel5" | |
| 166 | + disk = [ 'file:/root/rhel5.img,xvda1,w' ] | |
| 167 | + root = "/dev/xvda1 ro" | |
| 168 | + extra= "rhgb console=hvc0" | |
| 169 | + | |
| 170 | + 2. After boot xen and dom0, start xend | |
| 171 | + # /etc/init.d/xend start | |
| 172 | + ( In the debugging case, # XEND_DEBUG=1 xend trace_start ) | |
| 173 | + | |
| 174 | + 3. start domU | |
| 175 | + # xm create -c rhel5 | |
| 176 | + | |
| 177 | +========= | |
| 178 | +Reference | |
| 179 | +========= | |
| 180 | +- Wiki of Xen/IA64 upstream merge | |
| 181 | + http://wiki.xensource.com/xenwiki/XenIA64/UpstreamMerge | |
| 182 | + | |
| 183 | +Written by Akio Takebe <takebe_akio@jp.fujitsu.com> on 28 May 2008 |