First make disk images from your CD(s):
dd if=/dev/cdrom of=/iso/win2k3_1.iso bs=2048
dd if=/dev/cdrom of=/iso/win2k3_1.iso bs=2048
Then edit your config file:
disk = [ ‘file:/vm/win2k3.img,hda,w’, ‘file:/iso/win2k3_1.iso,ioemu:hdb:cdrom,r’, ‘file:/iso/win2k3_2.iso,ioemu:hdc:cdrom,r’, ]
name = "vm_windows2003"
uuid = "0bd2c8f1-4555-c192-c481-400fa7f6a18b"
maxmem = 1024
memory = 1024
vcpus = 1
builder = "hvm"
kernel = "/usr/lib/xen/boot/hvmloader"
boot = "d"
pae = 1
acpi = 1
apic = 1
on_poweroff = "destroy"
on_reboot = "restart"
on_crash = "restart"
device_model = "/usr/lib64/xen/bin/qemu-dm"
sdl = 0
vnc = 1
vncunused = 1
disk = [ "file:/vmhd/vm_windows2003/vm_windows2003.img,hda,w","file:/vmhd/cd1.iso,ioemu:hdc:cdrom,r" ]
vif = [ "mac=00:16:3e:06:e5:6a,bridge=virbr0,type=ioemu" ]
serial = "pty"