【0.前言】

• Ubuntu 後來取　KVM　捨 Xen，9.04　之後的 ubuntu kernel 都不支援 Xen dom0　Kernel (Ubuntu 的 OpenNEbula 和 Eucalyptus 套件都預設會使用 KVM)

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【1.dom0 Kernel version】

• Xen 官方的 2.6.18
• 整合 Xen & lustre 的 2.6.22
• Xen 官方的 2.6.27

  # cd /usr/src/
  # hg clone http://xenbits.xensource.com/ext/linux-2.6.27-xen.hg
  

• Debian 官方的 2.6.26
• 2.6.31.1 (From Jeremy Fitzhardinge git repository)

  $ git clone git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git linux-2.6-xen
  $ cd linux-2.6-xen
  $ git branch
  

  • Problem

    > drivers/built-in.o: In function `processor_cntl_xen_prepare':
    > (.text+0x50aba): undefined reference to `acpi_processor_get_performance_info'
    > drivers/built-in.o: In function `processor_cntl_xen_prepare':
    > (.text+0x50ad9): undefined reference to `acpi_processor_get_psd'
    > drivers/built-in.o: In function `xenfb_init':
    > xen-fbfront.c:(.init.text+0xd62): undefined reference to `__xenbus_register_frontend'
    > drivers/built-in.o: In function `xenkbd_init':
    > xen-kbdfront.c:(.init.text+0x7b48): undefined reference to `__xenbus_register_frontend'
    > make: *** [.tmp_vmlinux1] Error 1
    
    There's a known problem with making ACPI modular.  Compiling them builting (=y) should work.
    

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【2.相關的 Kernel Options】

General setup ---> Choose SLAB allocator (SLUB (Unqueued Allocator)) ---> (X) SLAB

Processor type and features ---> Subarchitecture Type (PC-compatible) ---> (X) Enable Xen compatible kernel

Bus options (PCI etc.)  ---> [*] PCI support
                             [*]   Xen PCI Frontend
                             [ ]     Xen PCI Frontend Debugging (NEW)

Change <M> 802.1d Ethernet Bridging to <*> 802.1d Ethernet Bridging:

Networking support ---> Networking options ---> <*> 802.1d Ethernet Bridging

Disable 10000 Mbit Ethernet (otherwise the build process will most likely fail):

Device Drivers ---> [*] Network device support ---> [ ] Ethernet (10000 Mbit) --->

Make the Xen section look as follows (make sure you select Xen version compatibility (3.0.4 and later) instead of Xen version compatibility (3.0.2 and later)):

Device Drivers  ---> XEN  ---> [*] Privileged Guest (domain 0)
                               <*> Backend driver support (NEW)
                               <*>   Block-device backend driver (NEW)
                               <*>   Block-device tap backend driver (NEW)
                               <*>   Network-device backend driver (NEW)
                               (8)     Maximum simultaneous transmit requests (as a power of 2) (NEW)
                               [ ]     Pipelined transmitter (DANGEROUS) (NEW)
                               < >     Network-device loopback driver (NEW)
                               <*>   PCI-device backend driver (NEW)
                                       PCI Backend Mode (Virtual PCI)  --->
                               [ ]     PCI Backend Debugging (NEW)
                               < >   TPM-device backend driver (NEW)
                               <M>   SCSI backend driver (NEW)
                               <M> Block-device frontend driver
                               <M> Network-device frontend driver
                               <M>   Network-device frontend driver acceleration for Solarflare NICs (NEW)
                               <M> SCSI frontend driver (NEW)
                               <*> User-space granted page access driver (NEW)
                               <*> Framebuffer-device frontend driver (NEW)
                               <*>   Keyboard-device frontend driver (NEW)
                               [*] Disable serial port drivers (NEW)
                               <*> Export Xen attributes in sysfs (NEW)
                               (256) Number of guest devices (NEW)
                                   Xen version compatibility (3.0.4 and later)  --->

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【Reference】

• ​Xen Dom0 Kernels
• ​Xen paravirt_ops for upstream Linux kernel
• ​dom0 2.6.27