HVM文件说明

\#============================================================================

1. Python configuration setup for 'xm create'.
2. This script sets the parameters used when a domain is created using 'xm create'.
3. You use a separate script for each domain you want to create, or
4. you can set the parameters for the domain on the xm command line.
5. ============================================================================

import os, re arch = os.uname()[4] if re.search('64', arch):

arch_libdir = 'lib64'

else:

arch_libdir = 'lib'

1. ----------------------------------------------------------------------------
2. Kernel image file.

kernel = "/usr/lib/xen/boot/hvmloader"

1. The domain build function. HVM domain uses 'hvm'.

builder='hvm'

1. Node infomation

nodenum = 2 nodeid = 0

1. 主:prime=1 从prime=0

prime = 1

1. 主:pinexp=20 从:pinexp=0

pinexp = 20 spinexp = 0 awinterval = 0 scproto = 0 sgfn = 0

1. 双结点的IP,前主后从.

nodeip = ["192.168.5.201","192.168.5.202"]

vcpus_on_nodes = [1,1]

1. Initial memory allocation (in megabytes) for the new domain.
3. WARNING: Creating a domain with insufficient memory may cause out of
4. memory errors. The domain needs enough memory to boot kernel
5. and modules. Allocating less than 32MBs is not recommended.

memory = 1024

1. Shadow pagetable memory for the domain, in MB.
2. Should be at least 2KB per MB of domain memory, plus a few MB per vcpu.

shadow_memory = 8

1. A name for your domain. All domains must have different names.

name = "hvm"

1. 128-bit UUID for the domain. The default behavior is to generate a new UUID
2. on each call to 'xm create'.
3. uuid = "06ed00fe-1162-4fc4-b5d8-11993ee4a8b9"
4. -----------------------------------------------------------------------------
5. the number of cpus guest platform has, default=1

vcpus = 2

vcpus_local=1

1. enable/disable HVM guest PAE, default=0 (disabled)
2. pae=0
3. enable/disable HVM guest ACPI, default=0 (disabled)

acpi=1

1. enable/disable HVM guest APIC, default=0 (disabled)

apic=1

1. List of which CPUS this domain is allowed to use, default Xen picks
2. cpus = "" # leave to Xen to pick
3. cpus = "0" # all vcpus run on CPU0
4. cpus = "0-3,5,^1" # run on cpus 0,2,3,5
5. Optionally define mac and/or bridge for the network interfaces.
6. Random MACs are assigned if not given.
7. vif = [ 'type=ioemu' ]
8. ----------------------------------------------------------------------------
9. Define the disk devices you want the domain to have access to, and
10. what you want them accessible as.
11. Each disk entry is of the form phy:UNAME,DEV,MODE
12. where UNAME is the device, DEV is the device name the domain will see,
13. and MODE is r for read-only, w for read-write.
14. disk = [ 'file:/export/home/mydisk.raw,hdc,w', 'file:/export/home/install.iso,hda:cdrom,r' ]
15. disk:主结点disk,从结点可以一个空文件.

disk = [ 'file:/root/szl/disk_szl.img,hdc,w']

1. disk = [ 'phy:/dev/dsk/c1d0p0,hdc,w', 'file:/export/home/install.iso,hda:cdrom,r' ]
2. disk = [ 'phy:/dev/zvol/dsk/mypool/mydisk,hdc,w', 'file:/export/home/install.iso,hda:cdrom,r' ]
3. ----------------------------------------------------------------------------
4. Configure the behaviour when a domain exits. There are three 'reasons'
5. for a domain to stop: poweroff, reboot, and crash. For each of these you
6. may specify:
8. "destroy", meaning that the domain is cleaned up as normal;
9. "restart", meaning that a new domain is started in place of the old
10. one;
11. "preserve", meaning that no clean-up is done until the domain is
12. manually destroyed (using xm destroy, for example); or
13. "rename-restart", meaning that the old domain is not cleaned up, but is
14. renamed and a new domain started in its place.
16. The default is
18. on_poweroff = 'destroy'
19. on_reboot = 'restart'
20. on_crash = 'restart'
22. For backwards compatibility we also support the deprecated option restart
24. restart = 'onreboot' means on_poweroff = 'destroy'
25. on_reboot = 'restart'
26. on_crash = 'destroy'
28. restart = 'always' means on_poweroff = 'restart'
29. on_reboot = 'restart'
30. on_crash = 'restart'
32. restart = 'never' means on_poweroff = 'destroy'
33. on_reboot = 'destroy'
34. on_crash = 'destroy'

on_poweroff = 'destroy' on_reboot = 'restart' on_crash = 'preserve'

1. ============================================================================
2. New stuff
3. device_model = '/usr/' + arch_libdir + '/xen/bin/qemu-dm'

device_model = '/usr/lib/xen/bin/qemu-dm'

1. -----------------------------------------------------------------------------
2. boot on floppy (a), hard disk (c) or CD-ROM (d)
3. default: hard disk, cd-rom, floppy
4. boot="cda"

boot="dc"

1. -----------------------------------------------------------------------------
2. write to temporary files instead of disk image files
3. snapshot=1
4. ----------------------------------------------------------------------------
5. enable SDL library for graphics, default = 0

sdl=0

1. ----------------------------------------------------------------------------
2. enable VNC library for graphics, default = 1

vnc=1

1. ----------------------------------------------------------------------------
2. address that should be listened on for the VNC server if vnc is set.
3. default is to use 'vnc-listen' setting from /etc/xen/xend-config.sxp

vnclisten="0.0.0.0"

1. ----------------------------------------------------------------------------
2. set VNC display number, default = domid

vncdisplay=999

1. ----------------------------------------------------------------------------
2. try to find an unused port for the VNC server, default = 1
3. vncunused=1
4. ----------------------------------------------------------------------------
5. enable spawning vncviewer for domain's console
6. (only valid when vnc=1), default = 0

vncconsole=1

vncpasswd=''

1. ----------------------------------------------------------------------------
2. no graphics, use serial port

nographic=0

1. ----------------------------------------------------------------------------
2. enable stdvga, default = 0 (use cirrus logic device model)

stdvga=0

1. -----------------------------------------------------------------------------
2. serial port re-direct to pty deivce, /dev/pts/n
3. then xm console or minicom can connect
4. serial='pty'
5. serial='stdio'
6. serial='file:/tmp/blah'
7. serial='/dev/pts/0'

serial='null'

1. -----------------------------------------------------------------------------
2. enable sound card support, [sb16|es1370|all|..,..], default none
3. soundhw='sb16'
4. -----------------------------------------------------------------------------
5. set the real time clock to local time [default=0 i.e. set to utc]
6. localtime=1
7. -----------------------------------------------------------------------------
8. start in full screen
9. full-screen=1
10. -----------------------------------------------------------------------------
11. Enable USB support (specific devices specified at runtime through the
12. monitor window)
13. usb=1
14. Enable USB mouse support (only enable one of the following, `mouse' for
15. PS/2 protocol relative mouse, `tablet' for
16. absolute mouse)
17. usbdevice='mouse'
18. usbdevice='tablet'