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—gentoo_xen [2016/05/02 16:40] (current) – created - external edit 127.0.0.1
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 +====== Gentoo Xen ======
  
 +  * [[Xen]]
 +  * [[xl]]
 +
 +  * [[https://wiki.gentoo.org/wiki/Xen|Gentoo Wiki: Xen]]
 +
 +Kernel configuration for Xen domain0:
 +
 +<code>
 +Processor type and features  --->
 +   [*] Linux guest support  --->
 +      [*]   Enable paravirtualization code
 +      [*]     Xen guest support
 +      [*]       Support for running as a PVH guest
 +      [*]     Paravirtualization layer for spinlocks
 +</code>
 +
 +<code>
 +Power management and ACPI options  --->
 +   [*] ACPI (Advanced Configuration and Power Interface) Support  --->
 +</code>
 +
 +<code>
 +Bus options (PCI etc.)  --->
 +   <*> Xen PCI Frontend
 +</code>
 +
 +<code>
 +[*] Networking support --->
 +   Networking options  --->
 +         <*> 802.1d Ethernet Bridging
 + [*] Network packet filtering framework (Netfilter) --->
 +            [*] Advanced netfilter configuration
 +            [*]   Bridged IP/ARP packets filtering
 +</code>
 +
 +<code>
 +Device Drivers  --->
 +   Character devices  --->
 +      [*] Xen Hypervisor Console support
 +      [*]   Xen Hypervisor Multiple Consoles support
 +</code>
 +
 +<code>
 +Device Drivers  --->
 +   [*] Block devices  --->
 +      <*>   Xen virtual block device support
 +      <*>   Xen block-device backend driver
 +</code>
 +
 +<code>
 +Device Drivers  --->
 +   Input device support  --->
 +      [*] Miscellaneous devices  --->
 +         <*>   Xen virtual keyboard and mouse support
 +</code>
 +
 +<code>
 +Device Drivers  --->
 +   [*] Network device support  --->
 +      <*>   Xen network device frontend driver
 +      <*>   Xen backend network device
 +</code>
 +
 +<code>
 +Device Drivers  --->
 +   Graphics support  --->
 +         Frame buffer Devices  --->
 +            <*> Xen virtual frame buffer support
 +</code>
 +
 +<code>
 +Device Drivers  --->
 +   Xen driver support  --->
 +         [*] Xen memory balloon driver
 +         [*]   Scrub pages before returning them to system
 +         <*> Xen /dev/xen/evtchn device
 +         [*] Backend driver support
 +         <*> Xen filesystem
 +         [*]   Create compatibility mount point /proc/xen
 +         [*] Create xen entries under /sys/hypervisor
 +         <*> userspace grant access device driver
 +         <*> User-space grant reference allocator driver
 +         <*> Xen PCI-device backend driver
 +         <*> Xen ACPI processor
 +         [*] Xen platform mcelog
 +         [*] Xen symbols
 +</code>
 +
 +You can install ''pygrub'' with the USE flag on the xen-tools package, which is a python wrapper to the old GRUB installs. Alternatively, you can use the newer ''pvgrub'' instead.
 +
 +<code>
 +emerge xen-pvgrub xen-tools xen
 +</code>
 +
 +Once you've emerged the packages, there will be a ''xen.gz'' kernel located in ''/boot''. You'll need to update your bootloader to use that as the kernel. Your original kernel is passed in as a module.
 +
 +A sample GRUB legacy configuration:
 +
 +<code>
 +title Xen Gentoo Linux 4.1.12
 +root (hd0,0)
 +kernel /boot/xen.gz
 +module /boot/vmlinuz-4.1.12-gentoo root=/dev/sda3
 +</code>
 +
 +Update the Xen services to start on boot:
 +
 +<code>
 +rc-update add xencommons default
 +rc-update add xenconsoled default
 +rc-update add xenstored default
 +</code>
 +
 +If you want Xen domains to start on boot, put the configuration files in ''/etc/xen/auto'', and add ''xendomains'' to the startup sequence:
 +
 +<code>
 +ln -s /etc/xen/configs/openbsd-5.9_amd64 /etc/xen/configs/auto/
 +</code>
 +
 +<code>
 +rc-update add xendomains default
 +</code>
 +
 +Update ''/etc/inittab'':
 +
 +<code>
 +c0:2345:respawn:/sbin/agetty 38400 hvc0 linux
 +</code>
 +
 +Reload your new inittab:
 +
 +<code>
 +telinit q
 +</code>

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